# MarsGeo — full content > MarsGeo provides 256 free browser-based SEO tools plus 56 SEO guides. Full text below. ## Tools # FAQ Schema Generator > Generate valid FAQPage schema (JSON-LD) for any page. Paste your questions and answers, copy the code, and pass Google's Rich Results test. Free tool: https://mars.cx/tools/faq-schema-generator Add FAQ structured data to your page in seconds. Enter your questions and answers and get clean, valid FAQPage JSON-LD you can paste into your site. ## How to use 1. Add each question and answer. 2. Copy the generated JSON-LD. 3. Paste it inside a ``` ## The types worth adding first - **Article / BlogPosting** — every blog post - **Product** with Offer — every product page - **FAQPage** — pages with a visible Q&A - **BreadcrumbList** — most content pages - **Organization** — once, on the homepage - **LocalBusiness** — every location page ## Rules that matter - Only mark up content that is **visible** on the page - Do not mark up fake reviews or ratings you cannot substantiate - Validate with the Rich Results Test and Search Console's enhancement reports - Use absolute URLs for images and page URLs ## Generate it You do not need to hand-write JSON. Our free generators cover the common types: [Article](/tools/article-schema-generator), [Product](/tools/product-schema-generator), [FAQ](/tools/faq-schema-generator), [HowTo](/tools/how-to-schema-generator), [Breadcrumb](/tools/breadcrumb-schema-generator) and [Organization](/tools/organization-schema-generator). Paste your fields, copy the block, and validate it. Provided by MarsGeo — https://mars.cx --- # What is robots.txt (and how to write one) > robots.txt controls what crawlers may fetch. Learn the syntax, the common mistakes, and how it differs from noindex. Published 2026-09-24 · https://mars.cx/blog/what-is-robots-txt `robots.txt` is a plain text file at the root of your domain that tells crawlers which parts of your site they may fetch. It is a convention, not a security mechanism, but every major search engine and most AI crawlers respect it. ## Where it lives The file must be at `https://yourdomain.com/robots.txt`. A file in a subfolder is ignored. You can only have one per origin. ## The syntax A robots.txt is made of groups. Each group starts with one or more `User-agent` lines followed by rules. ``` User-agent: * Allow: / Disallow: /admin/ Disallow: /search Sitemap: https://yourdomain.com/sitemap.xml ``` - `User-agent: *` applies to all crawlers - `Disallow` blocks fetching; `Allow` carves out exceptions and wins when it is more specific - `Sitemap` points to your XML sitemap ## Disallow is not noindex This is the most common mistake. `Disallow` stops a crawler **fetching** a URL. If a page is already indexed, blocking it in robots.txt will not remove it — and Google cannot see a `noindex` tag on a page it is not allowed to fetch. To remove a page from the index, either return `noindex` (and allow crawling so it can be seen), or remove the page and return 404/410. ## What to block - Internal search results (`/search?q=`) — they create infinite, low-value pages - Cart, checkout and account pages on e-commerce sites - Filter and sort parameter combinations that explode into duplicates - Staging or admin paths ## What not to block - CSS and JavaScript — if you block them, search engines cannot render your page correctly - Your sitemap, or any page you want indexed - Pages with a `noindex` tag you actually want removed ## Build one in seconds Use the free [robots.txt generator](/tools/robots-txt-generator) to assemble allow/disallow rules and a sitemap line, then copy it to your domain root. If you run WordPress, see the [WordPress version](/tools/robots-txt-generator-for-wordpress). Provided by MarsGeo — https://mars.cx --- # How to write meta descriptions that get clicks > A practical guide to meta descriptions: the right length, a structure that converts, and the mistakes that make Google rewrite yours. Published 2026-09-22 · https://mars.cx/blog/how-to-write-meta-descriptions A meta description is the grey snippet under your title in search results. It does not directly affect ranking, but it decides whether people click. Two results at the same position can differ by 30% or more in click-through rate based on the description alone. ## The right length Google shows roughly **150–160 characters** on desktop and a little less on mobile. Anything longer is truncated with an ellipsis. Aim for 150–160 characters and put the most important words first, because the end is what gets cut. - 150–160 characters: safe - Under 120: you are leaving room unused - Over 165: risk of truncation Use the [meta description generator](/tools/meta-description-generator) to fit any paragraph into range and preview it. ## A structure that works Most strong descriptions follow a simple pattern: - **Primary keyword early**, phrased naturally - **The benefit or specific value** you offer - **A call to action** — "Learn how", "Compare", "Get started" - **Differentiation** — price, speed, freshness, or proof For example: "Compare 12 free SEO tools for schema, robots.txt and sitemaps. No signup, runs in your browser — get a copy-ready result in seconds." ## Mistakes to avoid - Duplicating the title tag — the description should extend it, not repeat it - Auto-generating from the first paragraph of the page - Keyword stuffing; it reads badly and Google ignores it - Writing one description and reusing it across many pages ## When Google rewrites it Google rewrites descriptions when it thinks it can better match the query, especially for long-tail searches. You cannot stop this, but a clear, specific, well-sized description is far more likely to be kept. If a page has no meta description at all, Google will pull a passage from the page, which is usually worse. ## Do it at scale Writing descriptions by hand does not scale past a few dozen pages. If you publish programmatically, generate them from a template and data, then review the output. Pro's [programmatic SEO tool](/pseo) and the [API](/docs/api) do this in bulk. Start with the free [meta description generator](/tools/meta-description-generator) — paste your text and get a fitted, copy-ready tag. Provided by MarsGeo — https://mars.cx --- ## Comparisons # MarsGeo vs Screaming Frog: which should you use? > A fair comparison of MarsGeo (free browser SEO tools) and Screaming Frog (desktop crawler) — price, features and when to pick each. Updated 2026-10-04 · https://mars.cx/compare/marsgeo-vs-screaming-frog Screaming Frog is a powerful desktop crawler for auditing whole sites. MarsGeo is a set of free, browser-based tools for generating and checking individual pages. They solve different problems, and many people use both. ## Feature comparison - **Price** — MarsGeo: Free (Pro from $29/mo) | Screaming Frog: Free up to 500 URLs, then a yearly licence - **Setup** — MarsGeo: Open a page — no install | Screaming Frog: Download and install a desktop app - **Runs in** — MarsGeo: Your browser | Screaming Frog: Your desktop (Java) - **Schema generators** — MarsGeo: Yes — 20+ types | Screaming Frog: No (it audits, does not generate) - **robots.txt / sitemap** — MarsGeo: Yes | Screaming Frog: Audits, does not generate - **Whole-site crawl** — MarsGeo: No | Screaming Frog: Yes — the core strength - **Backlink data** — MarsGeo: No | Screaming Frog: No (not a backlink tool) ## Where MarsGeo wins - Quick, repeatable generation of schema, robots.txt and sitemaps - Zero install and no signup for the free tools - Using it from any device, including a phone - Localised tools for international teams ## Where Screaming Frog wins - Crawling an entire site and finding issues at scale - Comparing crawls over time and exporting large reports - Advanced technical auditing (redirects, JS rendering, integrations) ## Verdict If you need to crawl a whole site, use Screaming Frog. If you need to generate or check a page's schema, robots.txt or meta tags quickly and for free, MarsGeo is faster. Most technical SEOs keep both in the toolkit. Provided by MarsGeo — https://mars.cx --- # MarsGeo vs Ahrefs: free tools vs an all-in-one suite > How MarsGeo's free SEO tools compare to Ahrefs' paid SEO suite — and when each is worth it. Updated 2026-10-04 · https://mars.cx/compare/marsgeo-vs-ahrefs Ahrefs is a full SEO platform known for backlink data, keyword research and site audits. MarsGeo is a free toolkit focused on generating and checking on-page elements. They are not competitors so much as different layers. ## Feature comparison - **Price** — MarsGeo: Free (Pro from $29/mo) | Ahrefs: Paid subscription - **Backlink index** — MarsGeo: No | Ahrefs: Yes — best in class - **Keyword research** — MarsGeo: No | Ahrefs: Yes - **Schema generators** — MarsGeo: Yes — 20+ types | Ahrefs: Limited - **On-page tools** — MarsGeo: Yes, instant in-browser | Ahrefs: Yes, part of the suite - **Signup required** — MarsGeo: No | Ahrefs: Yes - **API** — MarsGeo: Pro | Ahrefs: Higher-tier plans ## Where MarsGeo wins - Free structured-data generation for any page - Instant checks with no account or trial - A lightweight complement to a paid suite ## Where Ahrefs wins - Backlink analysis and link-building research - Keyword research with real volume data - Large-scale site auditing and rank tracking ## Verdict Ahrefs is the better choice for backlinks, keywords and monitoring. MarsGeo is the better choice when you just need to generate valid schema or check a page — instantly, for free. They stack well together. Provided by MarsGeo — https://mars.cx --- # MarsGeo vs Semrush: which do you actually need? > MarsGeo's free tools compared with Semrush's marketing platform — price, scope and use cases. Updated 2026-10-04 · https://mars.cx/compare/marsgeo-vs-semrush Semrush is a marketing suite covering SEO, PPC, content and competitive research. MarsGeo is a narrow, free toolkit for schema, technical on-page and programmatic SEO. Choose based on whether you need research data or a fast generator. ## Feature comparison - **Price** — MarsGeo: Free (Pro from $29/mo) | Semrush: Paid subscription - **Scope** — MarsGeo: On-page tools & generators | Semrush: SEO + PPC + content + research - **Backlink / ads data** — MarsGeo: No | Semrush: Yes - **Schema & meta generation** — MarsGeo: Yes | Semrush: Limited - **Batch/pSEO generation** — MarsGeo: Pro | Semrush: Not the focus - **Signup required** — MarsGeo: No | Semrush: Yes ## Where MarsGeo wins - Generating structured data and meta tags freely - Programmatic SEO page generation for Pro users - No-account quick wins ## Where Semrush wins - Competitive and keyword research - PPC and advertising intelligence - Cross-channel reporting ## Verdict Semrush earns its price for research and monitoring. MarsGeo earns its keep as a free, fast generator you can reach for in seconds. If budget is tight, start free and add a suite when you need data. Provided by MarsGeo — https://mars.cx --- # MarsGeo vs Ubersuggest: free SEO tools compared > Both offer free SEO features. Here is how MarsGeo and Ubersuggest differ for on-page work. Updated 2026-10-04 · https://mars.cx/compare/marsgeo-vs-ubersuggest Ubersuggest is a keyword and content tool with free searches and paid plans. MarsGeo focuses on generating and checking on-page elements in the browser. The right pick depends on whether you need keyword ideas or instant generation. ## Feature comparison - **Price** — MarsGeo: Free (Pro from $29/mo) | Ubersuggest: Free limited searches, paid plans - **Keyword ideas** — MarsGeo: No | Ubersuggest: Yes - **Schema generators** — MarsGeo: Yes — 20+ types | Ubersuggest: No - **robots.txt / sitemap** — MarsGeo: Yes | Ubersuggest: No - **On-page audit** — MarsGeo: Yes, paste HTML | Ubersuggest: Yes, via URL - **Signup required** — MarsGeo: No | Ubersuggest: Yes for more data ## Where MarsGeo wins - Generating schema, robots.txt and sitemaps for free - Auditing a page without an account - Multilingual output ## Where Ubersuggest wins - Keyword and content ideas - Basic competitive data on a budget ## Verdict For on-page generation and checks, MarsGeo is faster and free. For keyword ideas, Ubersuggest has more to offer. They complement each other. Provided by MarsGeo — https://mars.cx --- # MarsGeo vs Yoast SEO: which fits your workflow? > Yoast is a WordPress plugin; MarsGeo is a browser toolkit. How they differ and where each helps. Updated 2026-10-04 · https://mars.cx/compare/marsgeo-vs-yoast Yoast is the most popular WordPress SEO plugin, adding titles, schema and analysis inside your CMS. MarsGeo is a platform-agnostic browser toolkit. If you are on WordPress, Yoast fits the editor; MarsGeo fits quick, standalone work. ## Feature comparison - **Price** — MarsGeo: Free (Pro from $29/mo) | Yoast SEO: Free core, paid premium - **Platform** — MarsGeo: Any site, in the browser | Yoast SEO: WordPress only - **Schema generators** — MarsGeo: Yes — standalone, any type | Yoast SEO: Automated for common types - **robots.txt / sitemap** — MarsGeo: Yes | Yoast SEO: Sitemaps yes; robots.txt limited - **Setup** — MarsGeo: No install | Yoast SEO: Install a plugin - **Works outside WordPress** — MarsGeo: Yes | Yoast SEO: No ## Where MarsGeo wins - Sites not on WordPress (Next.js, Shopify, Ghost, static) - Custom or advanced JSON-LD not covered by a plugin - One-off generation and checking ## Where Yoast SEO wins - In-editor SEO guidance for WordPress users - Automatic basics with no extra steps ## Verdict On WordPress, Yoast handles the routine. MarsGeo is there when you need custom schema, a platform-agnostic check, or you are working outside WordPress entirely. Provided by MarsGeo — https://mars.cx --- # MarsGeo vs Moz: which is right for you? > Moz is a full SEO suite; MarsGeo is a free browser toolkit. When to use which, compared fairly. Updated 2026-10-04 · https://mars.cx/compare/marsgeo-vs-moz Moz provides keyword research, link analysis and site auditing in a paid platform. MarsGeo provides free, instant on-page generation and checks. They address different stages of the same workflow. ## Feature comparison - **Price** — MarsGeo: Free (Pro from $29/mo) | Moz: Paid subscription - **Keyword research** — MarsGeo: No | Moz: Yes - **Link analysis** — MarsGeo: No | Moz: Yes - **Schema generators** — MarsGeo: Yes — 20+ types | Moz: Limited - **robots.txt / sitemap** — MarsGeo: Yes | Moz: No - **Signup required** — MarsGeo: No | Moz: Yes ## Where MarsGeo wins - Free schema and meta generation for any page - Instant checks with no account - Programmatic SEO generation on Pro ## Where Moz wins - Keyword and link data - Domain authority scoring - Crawl and rank tracking ## Verdict Moz is for research and monitoring; MarsGeo is for fast, free on-page generation. Budget-conscious teams start with MarsGeo and add Moz when they need data. Provided by MarsGeo — https://mars.cx --- # MarsGeo vs Rank Math: WordPress SEO plugin or browser toolkit? > Rank Math automates SEO inside WordPress. MarsGeo works on any platform. A practical comparison. Updated 2026-10-04 · https://mars.cx/compare/marsgeo-vs-rank-math Rank Math is a popular free WordPress plugin that generates titles, meta and schema automatically. MarsGeo is a platform-agnostic browser toolkit for when you need a snippet now, on any site. ## Feature comparison - **Price** — MarsGeo: Free (Pro from $29/mo) | Rank Math: Free core, paid pro - **Platform** — MarsGeo: Any site | Rank Math: WordPress only - **Schema** — MarsGeo: Manual, any type, copy-ready | Rank Math: Automated common types - **Works on Next.js/Shopify/static** — MarsGeo: Yes | Rank Math: No - **Site-wide audit** — MarsGeo: Pro (bulk URL audit) | Rank Math: Basic ## Where MarsGeo wins - Non-WordPress sites - Custom JSON-LD you can copy anywhere - Standalone checks ## Where Rank Math wins - One-click automation inside WordPress - Content analysis in the editor ## Verdict On WordPress, Rank Math is excellent for automation. MarsGeo covers every other platform and any case where you need a specific, custom snippet. Provided by MarsGeo — https://mars.cx --- # MarsGeo vs Google Search Console: different tools, same goal > GSC shows what Google thinks of your site; MarsGeo helps you build the markup and checks. How they fit together. Updated 2026-10-04 · https://mars.cx/compare/marsgeo-vs-google-search-console Google Search Console is the definitive source of what Google has indexed and how it performs. MarsGeo does not compete with that — it generates the assets (schema, robots.txt, sitemaps) and checks pages. Most sites use both. ## Feature comparison - **Purpose** — MarsGeo: Generate & check markup | Google Search Console: Indexing, performance, errors - **Schema generators** — MarsGeo: Yes | Google Search Console: No - **Sitemap submission** — MarsGeo: No | Google Search Console: Yes - **robots.txt testing** — MarsGeo: Generate rules | Google Search Console: Test/validate - **Query data** — MarsGeo: No | Google Search Console: Yes - **Price** — MarsGeo: Free (Pro from $29/mo) | Google Search Console: Free ## Where MarsGeo wins - Creating schema, sitemap and robots.txt - Instant per-page checks - Programmatic SEO generation ## Where Google Search Console wins - Actual indexing and query data - Sitemap submission and validation - Error and enhancement reports ## Verdict They are complementary: build with MarsGeo, verify with Search Console. Use GSC to find issues, then fix them with MarsGeo. Provided by MarsGeo — https://mars.cx --- # MarsGeo vs Serpstat: research platform vs free toolkit > Serpstat's SEO research features compared with MarsGeo's free on-page generators. Updated 2026-10-04 · https://mars.cx/compare/marsgeo-vs-serpstat Serpstat is a research platform covering keyword, competitor and backlink analysis. MarsGeo focuses on generating and checking on-page elements. Different layers of the same stack. ## Feature comparison - **Price** — MarsGeo: Free (Pro from $29/mo) | Serpstat: Paid plans - **Keyword & competitor research** — MarsGeo: No | Serpstat: Yes - **Backlink analysis** — MarsGeo: No | Serpstat: Yes - **Schema generators** — MarsGeo: Yes — 20+ types | Serpstat: No - **On-page generation** — MarsGeo: Yes | Serpstat: Limited - **API** — MarsGeo: Pro | Serpstat: Paid plans ## Where MarsGeo wins - Free structured data generation - No-account checks - Batch and pSEO on Pro ## Where Serpstat wins - All-in-one research data - Competitor tracking ## Verdict Use Serpstat for research and MarsGeo for producing the actual on-page assets. For lean teams, MarsGeo covers the output side for free. Provided by MarsGeo — https://mars.cx --- # MarsGeo vs Mangools: free generators vs keyword tools > Mangools is known for KWFinder and its keyword tools; MarsGeo is a free on-page toolkit. A fair comparison. Updated 2026-10-04 · https://mars.cx/compare/marsgeo-vs-mangools Mangools bundles KWFinder, SERP checker and link tools. MarsGeo is a free browser toolkit for schema, meta and technical on-page work. If keyword research is the need, Mangools; if generation and checks, MarsGeo. ## Feature comparison - **Price** — MarsGeo: Free (Pro from $29/mo) | Mangools: Paid subscription - **Keyword research** — MarsGeo: No | Mangools: Yes (KWFinder) - **SERP checker** — MarsGeo: No | Mangools: Yes - **Schema generators** — MarsGeo: Yes | Mangools: No - **robots.txt / sitemap** — MarsGeo: Yes | Mangools: No - **Signup required** — MarsGeo: No | Mangools: Yes ## Where MarsGeo wins - Free on-page generation - Instant checks on any device - Multilingual output ## Where Mangools wins - Low-friction keyword research - Clean SERP data ## Verdict Pick Mangools for keyword data, MarsGeo for producing the markup. Many users subscribe to one and use the other free. Provided by MarsGeo — https://mars.cx --- # MarsGeo vs AnswerThePublic: questions vs answers > AnswerThePublic finds the questions people ask; MarsGeo helps you answer them with schema. A natural pairing. Updated 2026-10-04 · https://mars.cx/compare/marsgeo-vs-answerthepublic AnswerThePublic visualises the questions and phrases people search around a topic. MarsGeo helps you structure an FAQ or schema to answer those questions. Different steps in one workflow. ## Feature comparison - **Purpose** — MarsGeo: Generate schema/meta & audit | AnswerThePublic: Discover question keywords - **FAQ schema** — MarsGeo: Yes | AnswerThePublic: No - **Keyword questions** — MarsGeo: No | AnswerThePublic: Yes - **Price** — MarsGeo: Free (Pro from $29/mo) | AnswerThePublic: Free limited, paid plans - **Signup required** — MarsGeo: No | AnswerThePublic: Yes for full results ## Where MarsGeo wins - Turning Q&A into FAQ schema - Free on-page generation - Batch and pSEO ## Where AnswerThePublic wins - Question and long-tail discovery - Content ideation ## Verdict Use AnswerThePublic for ideas and MarsGeo to build the FAQ structured data that makes those answers eligible for rich results. Provided by MarsGeo — https://mars.cx --- # MarsGeo vs SEO Site Checkup: instant audits compared > Both offer free SEO checks. How MarsGeo and SEO Site Checkup differ for on-page analysis. Updated 2026-10-04 · https://mars.cx/compare/marsgeo-vs-seo-site-checkup SEO Site Checkup runs URL-based audits across many signals. MarsGeo audits by pasted HTML and also generates the markup those audits look for. They overlap on auditing and differ in what you can produce. ## Feature comparison - **Audit method** — MarsGeo: Paste HTML (instant, private) | SEO Site Checkup: Enter URL (fetched) - **Schema generators** — MarsGeo: Yes | SEO Site Checkup: No - **robots.txt / sitemap** — MarsGeo: Yes | SEO Site Checkup: Checks only - **Batch audit** — MarsGeo: Pro (bulk URL audit) | SEO Site Checkup: Paid - **Privacy** — MarsGeo: Your HTML stays in your browser | SEO Site Checkup: Page is fetched server-side ## Where MarsGeo wins - Generation plus checking - Private paste-in auditing - Bulk URL audit on Pro ## Where SEO Site Checkup wins - One-click URL-based checks - Broad checklist coverage ## Verdict If you want to audit a live URL with one click, SEO Site Checkup works. If you also want to generate the fixes and keep pasted content private, MarsGeo covers more. Provided by MarsGeo — https://mars.cx --- # MarsGeo vs Bing Webmaster Tools: build it, then verify it > Bing Webmaster Tools reports on Bing's view of your site; MarsGeo builds the assets. Complementary, not competing. Updated 2026-10-04 · https://mars.cx/compare/marsgeo-vs-bing-webmaster-tools Bing Webmaster Tools is the Bing equivalent of Search Console: indexing status, performance and sitemap submission. MarsGeo generates the sitemaps, robots.txt and schema that make those reports look good. ## Feature comparison - **Purpose** — MarsGeo: Generate & check markup | Bing Webmaster Tools: Indexing & performance on Bing - **Sitemap generation** — MarsGeo: Yes | Bing Webmaster Tools: Submission only - **robots.txt** — MarsGeo: Generate | Bing Webmaster Tools: Test - **Schema generators** — MarsGeo: Yes | Bing Webmaster Tools: No - **Bing-indexed data** — MarsGeo: No | Bing Webmaster Tools: Yes ## Where MarsGeo wins - Building sitemaps, robots.txt and schema - Instant page checks - Bulk and pSEO on Pro ## Where Bing Webmaster Tools wins - Bing indexing and query data - Sitemap submission and keyword research ## Verdict Submit what MarsGeo generates to Bing Webmaster Tools, then use its reports to find and fix issues. The combination is stronger than either alone. Provided by MarsGeo — https://mars.cx --- # MarsGeo vs Surfer: content optimisation tools compared > Surfer scores your content against SERPs; MarsGeo generates the schema and meta. How they fit together. Updated 2026-10-04 · https://mars.cx/compare/marsgeo-vs-surfer Surfer analyses top-ranking pages and gives content scores and word suggestions. MarsGeo focuses on generating the structured data, titles and meta that make content eligible for rich results. ## Feature comparison - **Purpose** — MarsGeo: Generate schema/meta & check pages | Surfer: Score and optimise content vs SERPs - **Schema generators** — MarsGeo: Yes — 20+ types | Surfer: Limited - **On-page score** — MarsGeo: Basic audit | Surfer: Detailed content score - **Price** — MarsGeo: Free (Pro from $29/mo) | Surfer: Paid plans - **Signup required** — MarsGeo: No | Surfer: Yes ## Where MarsGeo wins - Free structured-data generation - Instant checks with no account - Batch and pSEO on Pro ## Where Surfer wins - Content scoring against live SERPs - Word-count and keyword suggestions - Content briefs ## Verdict Surfer guides what to write; MarsGeo produces the schema and meta that make it show up well. Content teams can use both without conflict. Provided by MarsGeo — https://mars.cx --- # MarsGeo vs PageSpeed Insights: they measure, we generate > PageSpeed Insights reports performance; MarsGeo audits on-page SEO and generates markup. Complementary tools. Updated 2026-10-04 · https://mars.cx/compare/marsgeo-vs-page-speed-insights PageSpeed Insights is Google's performance reporter. MarsGeo is an on-page SEO toolkit. They answer different questions about the same page. ## Feature comparison - **Purpose** — MarsGeo: On-page SEO audit + generators | PageSpeed Insights: Performance (CWV) reporting - **Schema generators** — MarsGeo: Yes | PageSpeed Insights: No - **Core Web Vitals** — MarsGeo: No | PageSpeed Insights: Yes - **Batch** — MarsGeo: Pro (bulk audit) | PageSpeed Insights: Single page - **Price** — MarsGeo: Free (Pro from $29/mo) | PageSpeed Insights: Free ## Where MarsGeo wins - Generating schema, robots.txt, sitemaps - Bulk URL audits on Pro - No-account quick checks ## Where PageSpeed Insights wins - Real lab and field performance data - CWV diagnostics ## Verdict Use PageSpeed Insights for performance and MarsGeo for SEO structure and markup. Both are free, so there is no reason to choose only one. Provided by MarsGeo — https://mars.cx --- # MarsGeo vs Frase: AI content vs SEO tooling > Frase drafts content from sources; MarsGeo generates schema and metadata. A clear division of labour. Updated 2026-10-04 · https://mars.cx/compare/marsgeo-vs-frase Frase uses AI to research and draft content based on your topic and keywords. MarsGeo generates the structured data and metadata that make that content eligible for rich results. ## Feature comparison - **Purpose** — MarsGeo: Schema & meta generation | Frase: AI content drafting - **Schema generators** — MarsGeo: Yes — 20+ types | Frase: No - **Content drafting** — MarsGeo: No | Frase: Yes - **Programmatic SEO** — MarsGeo: Yes (Pro) | Frase: Limited - **Price** — MarsGeo: Free (Pro from $29/mo) | Frase: Paid plans ## Where MarsGeo wins - Free, copy-ready JSON-LD - Batch and pSEO generation - No-account checks ## Where Frase wins - AI research and drafting - SERP-based briefs ## Verdict Let Frase draft, then use MarsGeo to add the schema and meta that help the page rank and earn rich results. They pair naturally. Provided by MarsGeo — https://mars.cx --- # MarsGeo vs Siteliner: finding duplicate content > Siteliner finds duplicate content across a site; MarsGeo gives you the canonical tools to fix it. Updated 2026-10-04 · https://mars.cx/compare/marsgeo-vs-siteliner Siteliner crawls a site and reports duplicate and near-duplicate content. MarsGeo provides the canonical and tag tools you use to resolve duplicates page by page. ## Feature comparison - **Purpose** — MarsGeo: Canonical/schema/meta tools | Siteliner: Whole-site duplicate detection - **Crawls your site** — MarsGeo: No (paste HTML / bulk on Pro) | Siteliner: Yes (free limited) - **Canonical checker** — MarsGeo: Yes | Siteliner: No - **Schema generators** — MarsGeo: Yes | Siteliner: No - **Price** — MarsGeo: Free (Pro from $29/mo) | Siteliner: Free limited, paid ## Where MarsGeo wins - Free canonical and tag checking - Generating the fix (canonical, noindex) - Batch URL audit on Pro ## Where Siteliner wins - Site-wide duplicate reports - Similarity percentages ## Verdict Use Siteliner to find duplicate clusters, then fix each one with MarsGeo's [canonical checker](/tools/canonical-url-checker) and the [duplicate content guide](/blog/duplicate-content-guide). Provided by MarsGeo — https://mars.cx --- # MarsGeo vs Conductor: enterprise platform vs free toolkit > Conductor is an enterprise SEO platform; MarsGeo is a free on-page toolkit. When each makes sense. Updated 2026-10-04 · https://mars.cx/compare/marsgeo-vs-conductor Conductor offers enterprise SEO and content intelligence for large teams. MarsGeo is a lightweight, free toolkit for generating and checking on-page elements. They serve very different buyers. ## Feature comparison - **Price** — MarsGeo: Free (Pro from $29/mo) | Conductor: Enterprise contract - **Scale** — MarsGeo: Individuals and small teams | Conductor: Large organisations - **Schema generators** — MarsGeo: Yes — 20+ types | Conductor: Limited - **Keyword & content intelligence** — MarsGeo: No | Conductor: Yes - **API** — MarsGeo: Pro | Conductor: Enterprise ## Where MarsGeo wins - Free generation and checks - Instant results, no demo call - Programmatic SEO on Pro ## Where Conductor wins - Enterprise content and keyword intelligence - Team workflows and integrations ## Verdict For a solo marketer or startup, MarsGeo covers on-page output for free. Enterprises with serious budgets and team needs should evaluate Conductor alongside their SEO platform. Provided by MarsGeo — https://mars.cx --- # MarsGeo vs Sitebulb: crawlers vs generators > Sitebulb is a visual site crawler; MarsGeo is a free on-page toolkit. A fair split of the work. Updated 2026-10-04 · https://mars.cx/compare/marsgeo-vs-sitebulb Sitebulb crawls whole sites and presents issues visually. MarsGeo generates the markup and checks individual pages. Crawlers find the problems; MarsGeo builds the fixes. ## Feature comparison - **Price** — MarsGeo: Free (Pro from $29/mo) | Sitebulb: Paid licence - **Whole-site crawl** — MarsGeo: No (bulk audit on Pro) | Sitebulb: Yes — core strength - **Schema generators** — MarsGeo: Yes — 20+ types | Sitebulb: No - **robots.txt / sitemap** — MarsGeo: Yes | Sitebulb: Audits only - **Install** — MarsGeo: None | Sitebulb: Desktop app ## Where MarsGeo wins - Generating schema, robots.txt and sitemaps - Instant page checks on any device - Free ## Where Sitebulb wins - Visual whole-site crawling - Issue prioritisation - Crawl comparisons ## Verdict Sitebulb tells you what is broken across a site; MarsGeo produces the markup and per-page checks. Many SEOs use Sitebulb to find and MarsGeo to fix. Provided by MarsGeo — https://mars.cx --- # MarsGeo vs GTmetrix: performance reporters vs SEO tooling > GTmetrix measures page performance; MarsGeo audits on-page SEO and generates markup. Updated 2026-10-04 · https://mars.cx/compare/marsgeo-vs-gtmetrix GTmetrix scores speed with Lighthouse-based analysis. MarsGeo covers on-page SEO structure and generation. Different layers of page quality. ## Feature comparison - **Purpose** — MarsGeo: On-page SEO audit + generators | GTmetrix: Performance scoring - **Schema generators** — MarsGeo: Yes | GTmetrix: No - **Performance metrics** — MarsGeo: No | GTmetrix: Yes (Lighthouse) - **Batch** — MarsGeo: Pro (bulk audit) | GTmetrix: Paid plans - **Price** — MarsGeo: Free (Pro from $29/mo) | GTmetrix: Free limited, paid ## Where MarsGeo wins - Free schema/meta generation - Bulk URL audits on Pro - No-account checks ## Where GTmetrix wins - Detailed performance waterfall - Historical performance tracking ## Verdict Use GTmetrix when the problem is speed and MarsGeo when it is structure or markup. Both are cheap to start, so keep both. Provided by MarsGeo — https://mars.cx --- # MarsGeo vs Lighthouse: Google's audit tool vs our SEO toolkit > Lighthouse audits performance and accessibility; MarsGeo generates schema and checks on-page SEO. Updated 2026-10-04 · https://mars.cx/compare/marsgeo-vs-lighthouse Lighthouse is Google's open-source audit for performance, accessibility and SEO. MarsGeo complements it with generation and deeper on-page checks. ## Feature comparison - **Purpose** — MarsGeo: Generate schema/meta & check SEO | Lighthouse: Performance/accessibility/SEO audit - **Schema generators** — MarsGeo: Yes | Lighthouse: No - **Paste-HTML check** — MarsGeo: Yes (private) | Lighthouse: No (runs on a URL) - **Batch** — MarsGeo: Pro (bulk audit) | Lighthouse: Single page - **Price** — MarsGeo: Free (Pro from $29/mo) | Lighthouse: Free ## Where MarsGeo wins - Generating structured data - Private paste-in audits - Bulk and pSEO on Pro ## Where Lighthouse wins - Free, deep technical audit - Runs in DevTools/CLI ## Verdict Lighthouse finds issues; MarsGeo builds the schema and metadata those audits reward. Run Lighthouse for a scan, then use MarsGeo to fix and generate. Provided by MarsGeo — https://mars.cx --- # MarsGeo vs SpyFu: research vs production > SpyFu is a competitor research tool; MarsGeo produces the on-page output. How they fit. Updated 2026-10-04 · https://mars.cx/compare/marsgeo-vs-spyfu SpyFu specialises in competitor keywords, PPC and rank tracking. MarsGeo is a free toolkit for generating schema and metadata. Research feeds production. ## Feature comparison - **Price** — MarsGeo: Free (Pro from $29/mo) | SpyFu: Paid plans - **Competitor keywords** — MarsGeo: No | SpyFu: Yes - **PPC research** — MarsGeo: No | SpyFu: Yes - **Schema generators** — MarsGeo: Yes | SpyFu: No - **Programmatic SEO** — MarsGeo: Yes (Pro) | SpyFu: No ## Where MarsGeo wins - Free schema and meta generation - Batch and pSEO - No-account checks ## Where SpyFu wins - Competitor and PPC intelligence - Rank tracking ## Verdict SpyFu tells you which terms competitors target; MarsGeo helps you ship the pages and markup for those terms. Provided by MarsGeo — https://mars.cx --- # MarsGeo vs Botify: enterprise crawling vs free toolkit > Botify is an enterprise SEO platform; MarsGeo is free on-page tooling. Different tiers, same goals. Updated 2026-10-04 · https://mars.cx/compare/marsgeo-vs-botify Botify crawls and analyses large sites with custom log analysis and dashboards. MarsGeo is a lightweight, free toolkit for generating and checking on-page elements. ## Feature comparison - **Price** — MarsGeo: Free (Pro from $29/mo) | Botify: Enterprise contract - **Scale** — MarsGeo: Individuals, small teams | Botify: Large, complex sites - **Schema generators** — MarsGeo: Yes | Botify: Limited - **Log analysis** — MarsGeo: No | Botify: Yes - **API** — MarsGeo: Pro | Botify: Enterprise ## Where MarsGeo wins - Free generation and checks - Instant results - Programmatic SEO on Pro ## Where Botify wins - Enterprise-scale crawling - Log file and infrastructure analysis ## Verdict For a startup or marketer, MarsGeo covers the on-page output for free. Large enterprises with complex sites should evaluate Botify for infrastructure-level analysis. Provided by MarsGeo — https://mars.cx ---