Free SEO audit tools

Site auditing tools can be pricey, but plenty offers free versions or a free one-off check. Even if a free site audit tool doesn't provide everything you can get from a paid one, they're helpful to spot opportunities to improve your SEO.

Results Count

1 - 36 of 101 tools
  • Freemium
    InLinks Screenshot
    Content briefing, content writing, structured data
    Web-based
    Entity-based SEO Platform, to help you rank higher & stay ranked longer.​
  • Freemium
    Dareboost Screenshot
    Site speed
    Web-based
    Dareboost provides an overview of your site speed, SEO, quality and security in minutes, including tips on how to improve optimisation.
  • Free
    XML Sitemaps plugin Screenshot
    Plugins/extensions, XML sitemaps
    WordPress
    Improve your SEO by using this plugin that generates sitemaps, enabling search engines to better index your site.
  • Freemium
    HEADMasterSEO Screenshot
    SEO crawler
    Mac
    Windows
    Check all URLs in one go for status code, redirects, and HTTP response headers. This app is suitable for both Windows and Mac OS.
  • Free
    Map Broker XML Sitemap Validator Screenshot
    Use this tool to spot the URLs in your XML sitemap that are valid, highlighting the ones that are invalid so you can remove them.
  • Freemium
    Siteliner Screenshot
    Duplicate content
    Web-based
    Siteliner provides an analysis of your site within minutes, enabling you to spot errors that can be quickly be fixed.
  • Free
    Website Grader Screenshot
    SEO checker
    Web-based
    Use this tool to identify how your site is performing against key metrics, followed by tips on how to improve.
  • Free
    XML Sitemaps Screenshot
    Site auditing
    Web-based
    Use this tool to generate an XML sitemap for your site with the click of a button.
  • Free
    web.dev Measure Screenshot
    Site speed
    Web-based
    Use this tool to measure your site's performance, including tips on how you can create a better user experience.
  • Free
    Wattspeed Screenshot
    Site speed
    Web-based
    Check your site speed with just a click of a button using Wattspeed.
  • Free
    View Rendered Source Screenshot
    Browser extensions, site auditing
    Chrome
    Get a better understanding of how search engines view your page by using this tool. It shows you how a browser renders a page, rather than the server.
  • Free
    Unused CSS finder Screenshot
    Site speed
    Web-based
    Use this tool to crawl your site to detect unused CSS selectors.
  • Free
    TTFB Test Screenshot
    Site speed
    Web-based
    Use this tool to check how long it takes for your server to respond to requests made by the browser.
  • Freemium
    Surfer SEO Screenshot
    Content briefing, content writing, keyword research, site auditing
    Web-based
    Use Surfer to generate content plans for any domain in a couple of clicks. Write high-quality and SEO-friendly content to win high positions in Google. Sign up now!
  • Free
    Structured Data Testing Tool Screenshot
    Structured data
    Web-based
    Use this tool to view how your page looks with the structured data it contains.
  • Free
    SmallSEOTools Screenshot
    Link auditing, meta optimisation, plagiarism checker, site auditing
    Web-based
    A collection of tools that assist in perfecting keyword research, content, backlinks and more.
  • Free
    SERPSim Screenshot
    Meta optimisation
    Web-based
    Use SERPSim to generate snippets for the SERP using the latest Google pixel limits.
  • Freemium
    SEOLyzer Screenshot
    Log file analysis
    Web-based
  • Freemium
    Screaming Frog SEO Spider Screenshot
    SEO crawler
    Mac
    Windows
    The Screaming Frog SEO Spider is a small desktop program (PC or Mac) which crawls websites’ links, images, CSS, script and apps.
  • Free
    Ryte Robots.txt Generator Screenshot
    Site auditing
    Web-based
    Use this tool to generate a robots.txt file, ensuring search engine crawlers are crawling and indexing your site.
  • Free
    Rich Results Test Screenshot
    Structured data
    Web-based
    Use this tool to see which rich results can be generated by the structured data a page contains.
  • Free
    Responsive Breakpoints Screenshot
    Site speed
    Web-based
    Use this tool to analyse hi-res images, finding the best dimensions for embedding as responsive images in your site
  • Freemium
    Pingom Site Speed Tool Screenshot
    Site speed
    Web-based
    Use the Pingom Site Speed Tool to analyse your site speed and how to make this it faster.
  • Free
    PageSpeed Insights Screenshot
    Site speed
    Web-based
    Use this tool to analyse the speed of your site.
  • Free
    Page Outil: GSC Optimization Screenshot
    Meta optimisation
    Web-based
    From page by page analysis, keyword research and a SERP preview, optimise your site using this all-in-one tool.
  • Free
    Onely JavaScript SEO Tools Screenshot
    Site auditing
    Web-based
    Onely Made for Geeks [OMFG] is Onely’s official free toolset that allows you to access your website’s rendering cost, JavaScript injected elements, and indexed HTML and JS code.
  • Free
    OpenLink Structured Data Sniffer Screenshot
    Browser extensions, site auditing, structured data
    Chrome
    Firefox
    An extension that is compatible across multiple browsers that unveils structured metadata embedded within HTML documents and web pages.
  • Free
    Mobile First Indexing Test Tool Screenshot
    Site auditing
    Web-based
    You can see the key differences between your desktop and mobile site with MFI Checker - Zeo's Mobile-first Indexing tool.
  • Free
    Meta Tags Screenshot
    Meta optimisation
    Web-based
    With Meta Tags you can edit and experiment with your content then preview how your webpage will look on Google, Facebook, Twitter and more!
  • Free
    Merkle Schema Markup Generator Screenshot
    Structured data
    Web-based
    A Schema.org structured data generator that supports the creation of JSON-LD markups. Including all of the required item properties and more.
  • Free
    Link Redirect Trace Screenshot
    Browser extensions, site auditing
    Chrome
    Firefox
  • Free
    Lighthouse performance budget generator Screenshot
    Configure and download your performance budget for Google Lighthouse
  • Free
    Layout Shift GIF Generator Screenshot
    Site speed
    Web-based
    Cumulative Layout Shift (CLS) Visualiser.
  • Free
    keep-alive-validation-screenshot
    Site speed
    Web-based
    Is keep alive enabled on your web server? Use our SEO tool to check the Persistent Connection status of your website. Check multiple URLs with Bulk mode.
  • Free
    JSON-LD Schema Generator Screenshot
    Structured data
    Web-based
    One of the easiest ways to add Schema's structured markup to a page is to use JSON-LD. With this tool you can quickly generate the correct JSON-LD for any

Type

Type
  • Algorithm monitoring (10)
  • Browser extensions (29)
  • Local SEO (7)

Platforms

Platforms
  • Web (66)
  • Chrome (29)
  • Firefox (7)
  • WordPress (2)
  • Google Sheets (1)

Pricing/Usage

Pricing/Usage
  • Free (101)

Price

Price

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