Free SEO Tools

Download every resource on a page to measure what it really weighs, and find the largest files.

Fetch a page server-side and confirm every declared favicon link actually resolves.

Check whether a page is actually served gzip/Brotli compressed from the real response headers.

Check up to 20 URLs at once with real server-side requests — status codes and response times, right now.

Read a page's real Last-Modified header and modified/published-time meta tags.

Fetch two pages server-side and compare their real on-page metrics side by side.

See the full H1-H6 outline, with skipped levels, empty headings and multiple H1s named.

See which AI bots your robots.txt allows, and which of them cite you rather than train on you.

Audit titles and descriptions across many URLs or a sitemap, and find the duplicates.

Viewport, fixed widths, small text and input types — the mobile basics readable from source.

Read the real TLS certificate a domain serves: expiry, issuer, covered hostnames and the chain.

Real registration date, age, registrar, expiry and nameservers, queried live via RDAP.

Read every canonical a page declares, then check whether the target resolves, redirects or blocks indexing.

One verdict from every indexing signal: status, robots.txt, meta robots, X-Robots-Tag and canonical.

Validate JSON-LD, Microdata and RDFa against Schema.org, with errors and missing properties named.

Check a page's real AMP HTML structure: boilerplate, canonical, viewport, and disallowed markup.

Real Lighthouse scores and field data, straight from Google's PageSpeed API.

Request every link on a page to find 404s, errors and redirect chains.

Validate a sitemap against the protocol and verify the URLs inside it resolve.

Catch invalid language codes, missing self-references and duplicate hreflang tags.

Status, redirect chain, caching and a graded review of the security headers.

See how a page looks shared on Facebook, X and LinkedIn, and what tags are missing.

Find images with missing, empty, duplicate or file-name alt text on any page.

See how a page looks in Google, measured in pixels rather than characters.

Check whether a crawler may fetch a URL, and which rule decides it.

Paste a URL — we fetch and score the real page, then AI writes advice tailored to what it found.

Follows a URL's full redirect chain server-side and flags loops, too many hops, or unexpected redirect types.

Extracts every link on a page and reports internal/external split, nofollow links, and empty or generic anchor text.

Upload a Search Console export to surface quick-win pages: high impressions, low CTR, positions 4–15.

Flesch, Gunning Fog, SMOG, Coleman-Liau and ARI, all calculated from your text.

Count words, characters, sentences, paragraphs, and reading time live.

Count characters with and without spaces, live.

Count sentences and average words per sentence.

Count paragraphs in your content.

Estimate reading time at any words-per-minute rate.

Check how often a target keyword appears, and at what density.

Surface your most-used keywords and two-word phrases.

Rank every word by how often it appears.

Find repeated 2, 3, and 4-word phrases in your content.

See how much of your content is common stop words.

Get a real cosine-similarity score between two texts.

Check whether two pages overlap enough to count as duplicates.

Find sentences repeated word-for-word in your content.

Find whole paragraphs that repeat in your content.

See exactly what changed between two versions of a text.

Convert between UPPER, lower, Sentence, Title, camelCase, and more.

Capitalize the first letter of every sentence.

Proper Title Case with correct minor-word handling.

Turn a title into a clean, SEO-friendly URL slug.

Collapse extra spaces, tabs, and blank lines.

Strip out lines that repeat in a list.

Sort a list A→Z or Z→A.

Identify the keywords a piece of content genuinely targets.

Find every unique URL mentioned in a block of text.

Find every unique email address in a block of text.

Pull hundreds of real keywords from Google autocomplete, grouped by search intent.

See how early your keyword first appears in the content.

Check keyword presence across title, meta, H1, URL, and intro.

Group keywords into real topic clusters by meaning and intent.

Work out what searchers actually want behind each keyword.

Generate realistic long-tail variations from one seed keyword.

Discover modifier patterns searchers add to your keyword.

Map keywords to pages — what belongs together and why.

Remove exact and near-duplicate keywords from a list.

Estimate potential organic clicks by ranking position using published industry-average CTR benchmarks.

Percent-encode text for safe use in a URL.

Decode a percent-encoded URL back to plain text.

Check a URL's character length with guidance.

Break a URL's query string into a readable table.

Strip tracking parameters like utm_* and fbclid from a URL.

Normalize casing and trailing slashes across a list of URLs.

Remove duplicate URLs from a list.

Extract and count domains from a list of URLs.

Generate proven title formulas from a topic.

Write meta descriptions in three tones, built for click-through rate.

Generate clear, on-topic H1 heading options.

Write complete, publish-ready FAQ questions and answers.

Write accessible, descriptive alt text for an image.

Generate JSON-LD for Article, LocalBusiness, FAQ, and Product.

Build a valid robots.txt file.

Build a valid meta robots tag from checkboxes — index/noindex, follow/nofollow, and preview-limit directives.

Generate a valid XML sitemap from a list of URLs.

Generate the full set of favicon link tags — ICO, PNG sizes, Apple touch icon, and manifest.

Turn a list of old/new path pairs into valid Apache .htaccess redirect rules.

Generate placeholder text by paragraphs, sentences, or words.

Generate a canonical link tag for a URL.

Build hreflang tags for a page's language variants.

Build campaign URLs one at a time or in bulk, with CSV export and saved history.

Generate QR codes for URLs, WiFi, WhatsApp and more, with custom colors and a logo.

Generate platform-specific hashtag sets grouped by reach and competition.

Write captions in your chosen tone, in short, medium and long variants.

Score a video title for SEO, clickability, clarity and length.

Format descriptions with timestamps, links, hashtags and a CTA block.

Pull tags and keywords from a video's public metadata.

Grab a video's public thumbnails in every published size.

Count text against every major platform's limit at once.

Format a post with a hook, short paragraphs, lists and a CTA.

Count posts the way X does, with links charged at 23 characters.

Format a post for readability with spacing, lists and a CTA.

Search, browse and multi-select emoji, with recents saved locally.

Turn text into a word cloud and download it as PNG or SVG.