Free SEO and website audit tools

Website SEO auditRun every on-page, link, performance, server and security check on one page and get a grad...

Keyword generatorFind hundreds of keyword ideas from what people really type into search boxes. Keyword suggestionsAutocomplete suggestions from Google, Bing, YouTube and Amazon for any keyword. Question finderQuestions people ask about a topic — who, what, why, how, can, is — for FAQ sections and b... Long-tail keyword finderLonger, more specific keyword phrases that are easier to rank for. Search volume checkerCheck monthly search volume, CPC and competition for up to 20 keywords at once. Keyword difficulty checkerHow hard is it to reach the first page for a keyword? Scored 0–100 from the current top re... SERP checkerSee the current top results for any keyword, country and search engine. Keyword rank checkerFind where a website ranks for a keyword right now. Keyword combinerMix lists of words into every keyword combination — handy for PPC campaigns and local page... Negative keyword generatorCommon negative keywords (free, jobs, cheap, DIY…) to stop wasted ad spend. Keyword clusteringPaste a keyword list and group it into topics by shared words.

Domain authority checkerAuthority score, referring domains and organic visibility for any domain. Bulk domain authority checkerCheck authority for up to 20 domains at once. Website traffic checkerEstimated organic traffic, top keywords and top pages of any website. Competitor finderFind the sites that compete with a domain for the same keywords. Domain age checkerWhen a domain was registered and how old it is. Domain availability checkerCheck whether a domain name is still free to register. WHOIS lookupRegistrar, dates, status and name servers of any domain. Tech stack / CMS detectorFind which CMS, frameworks, servers and analytics a website uses. Website worth calculatorA rough value of a website from its estimated traffic and authority.

Backlink checkerBacklinks pointing to any domain, with anchors and first-seen dates. Referring domains checkerWhich websites link to a domain, and how often. Anchor text analyzerThe words other sites use when they link to a domain. Broken backlink finderBacklinks that point to missing pages, so you can win them back. Link counterCount internal and external, follow and nofollow links on a page. Nofollow link checkerWhich links on a page are nofollow, ugc or sponsored. Disavow file generatorTurn a list of bad links or domains into a file Google's disavow tool accepts.

Title tag checkerCheck a page's title tag length, duplicates and how it looks in search. Meta tags checkerEvery meta tag on a page, checked. Meta description checkerIs the meta description there, and is it the right length? Meta refresh checkerFind meta refresh redirects that search engines dislike. Meta viewport checkerIs the page set up for phones? Meta charset checkerCheck the declared character set. Language attribute checkerCheck the page language and hreflang tags. Hreflang checkerList and check hreflang alternate-language tags. Doctype checkerCheck the page's document type declaration. Deprecated HTML tags checkerFind outdated tags like <font> and <center>. Heading structure checkerSee the H1–H6 outline of a page and spot skipped levels. Canonical tag checkerFind and check a page's canonical URL. Noindex checkerIs a page blocked from search by meta robots or X-Robots-Tag? Schema markup checkerFind and validate JSON-LD and microdata on a page. Favicon checkerFind a site's favicon. Image alt tags checkerList every image and whether it has alt text. SEO-friendly URL checkerIs a URL short, readable and lower-case? Structured data validatorValidate the JSON-LD blocks on a page.

URL redirect checkerFollow every redirect hop of a URL with its status code. 404 page checkerDoes the site answer missing pages with a real 404? Broken link checkerCheck every link on a page and find the broken ones. Robots.txt checker and testerRead a robots.txt and test whether a URL is allowed for a bot. Sitemap checkerFind and validate a site's XML sitemap. Internal links checkerList every internal link on a page. External links checkerList every outgoing link on a page. Unsafe external links checkerFind target="_blank" links without rel="noopener". Indexability checkerCan search engines index this URL? Checks status, robots.txt, noindex and canonical. www / non-www checkerDo www and non-www, http and https lead to one address?

Page speed checkerPage speed score, load timings, page weight and what slows the page down. TTFB checkerTime to first byte, DNS, connect and TLS timings. Page size checkerHow big is the page's HTML? DOM size checkerCount DOM elements, depth and the widest node. HTTP requests checkerHow many files a page loads, by type. Lazy loading images checkerAre images below the top lazy-loaded? JavaScript defer checkerFind render-blocking scripts. Inline CSS checkerCount <style> blocks and style attributes. Image format checkerWhich images could move to WebP or AVIF. Gzip / compression checkerIs the page compressed with gzip or Brotli? Brotli checkerIs Brotli compression switched on? HTTP/2 checkerIs the site served over HTTP/2 or HTTP/3? Mobile-friendly testQuick checks for how well a page works on phones.

DNS lookupA, AAAA, CNAME, MX, NS, TXT, SOA and CAA records of a domain. DNS propagation checkerAsk eight public DNS resolvers around the world for the same record. IP lookupNetwork owner (ASN), country and reverse DNS of an IP address or domain. Reverse DNS lookupThe host name behind an IP address (PTR record). What is my IPYour public IP address and browser details. SSL checkerCertificate issuer, expiry, names, chain and TLS version. Ping testHow fast a server answers (TCP handshake time from our server). Website hosting checkerWho hosts a website: IP, network, country and server software. HTTP headers checkerEvery response header a URL sends. Security headers checkerGrade a site's HTTP security headers A–F. HSTS checkerIs Strict-Transport-Security set correctly? Server signature checkerDoes the server reveal its software version? Content-Security-Policy checkerRead and explain a site's Content-Security-Policy. Referrer-Policy checkerCheck the Referrer-Policy header. Mixed content checkerFind http:// files on an https:// page. Unsafe forms checkerForms that send data without encryption. Plain-text email checkerEmail addresses that spam bots can harvest. Safe URL checkerWarning signs on a URL: lookalike domain, IP host, no HTTPS, redirects to other sites. IP blacklist checkerIs a server's IP on spam blacklists (DNSBL)? HTTP/3 checkerDoes the server advertise HTTP/3 (QUIC)?

SPF record checkerFind and check the SPF record of a domain. DMARC checkerFind and explain the DMARC policy of a domain. DKIM checkerLook up DKIM keys by selector. MX lookupThe mail servers of a domain. Email deliverability checkerMX, SPF, DKIM and DMARC in one report.

Google search previewSee how a page looks in Google results on desktop and mobile, with title and description l... Bing search previewSee how a page looks in Bing results. Yandex search previewSee how a page looks in Yandex results. Yahoo search previewSee how a page looks in Yahoo results. Social links checkerFind a site's social media profiles. Open Graph checkerPreview how a link looks when shared, and check its Open Graph tags. X / Twitter card checkerPreview and check X / Twitter card tags. Social share previewHow a link looks on Facebook, LinkedIn, WhatsApp and X.

llms.txt checkerIs /llms.txt published for AI assistants? AI crawler access checkerWhich AI crawlers (GPTBot, ClaudeBot, PerplexityBot…) robots.txt lets in. llms.txt generatorBuild an llms.txt from a site's pages. AI robots.txt builderChoose which AI crawlers to allow and get the robots.txt lines.

Meta tag generatorWrite title, description, robots, Open Graph and Twitter tags. Robots.txt generatorBuild a robots.txt in a few clicks. XML sitemap generatorCrawl a site (up to 200 pages) and download an XML sitemap. Schema markup generatorJSON-LD for Organization, LocalBusiness, Article, Product, FAQ, Breadcrumb and Event. Hreflang tag generatorAlternate-language link tags for every language version. .htaccess / Nginx redirect generator301 redirect rules for Apache and Nginx. Open Graph tag generatorOpen Graph and X card tags for a page. UTM link builderAdd campaign tracking parameters to a link. Canonical tag generatorThe canonical link tag for a URL.

Keyword density checkerThe most used words and phrases on a page and their density. Word count checkerCount the visible words on any web page. Text to HTML ratio checkerHow much of a page is readable text versus code. Website text extractorCopy all the visible text of a web page. Readability checkerFlesch reading ease, grade level, sentence and word length for any text. Keyword density (paste text)Word and phrase density for text you paste.