SEO Tools

Paste or fetch a page's HTML and its URL to flag generic, empty, image-only, and over-repeated internal link anchor text.

Generate paste-ready Article, NewsArticle, or BlogPosting JSON-LD from a form.

Turn an ordered list of page names and URLs into paste-ready BreadcrumbList JSON-LD.

Paste or fetch a page's HTML, extract its links, and check each one's HTTP status from your browser.

Fetch or paste response headers and get a plain-English explanation of Cache-Control directives, ETag, Expires, and Vary.

Check a page's canonical tag for duplicates and flag a relative canonical URL Google may not resolve reliably.

Paste PageSpeed Insights JSON and get LCP, CLS, INP/TBT, FCP and more graded against Google's published thresholds.

Generate paste-ready Course JSON-LD with an optional course instance, offer, and rating.

Combine robots.txt, meta robots, X-Robots-Tag, and canonical tag signals into one indexable/blocked verdict.

Measure a meta description's rendered pixel width and flag likely SERP truncation.

Paste two blocks of text and get a similarity percentage plus the exact phrases they share in common.

Generate paste-ready Event JSON-LD with a physical or virtual location and optional ticket offer.

Paste or fetch a page's HTML and its URL to catalog every external link grouped by domain, with rel/target attribute flags.

Turn a list of questions and answers into paste-ready FAQPage JSON-LD.

Preview how a page's title and meta description will render as a Google search result, with live character counts.

Fetch a page (or paste HTML) and get a nested H1-H6 outline, flagging missing H1s and heading-level skips.

Check a page's hreflang tags for duplicate values, invalid language codes, and a missing x-default entry.

Fetch or paste a page's response headers and see every header categorized as Caching, Security, Content, or Other.

Fetch a page (or paste HTML) and audit every <img> tag's alt attribute for missing, empty, or descriptive text.

Turn an image filename (plus optional page context) into a suggested alt text starting point, using filename heuristics only.

Add page URL, image URL, and caption rows and generate valid image sitemap XML using Google's image: namespace.

Paste or fetch a page's HTML and its URL to catalog every internal link, its anchor text, and structural issues.

Generate paste-ready JobPosting JSON-LD with hiring org, location, and salary.

Paste a list of keywords and group them into clusters by shared significant words, with a suggested head term per cluster.

Analyze body text for single-keyword and 2-3 word phrase frequency, with a soft keyword-stuffing warning.

Check whether a target keyword appears in the title, H1, URL slug, first 100 words, a subheading, and the meta description.

Generate paste-ready LocalBusiness JSON-LD with a nested address and opening-hours specification.

Generate several template-based meta description variants from a keyword, value prop, and CTA, flagged against the ~155-160 char guidance.

Check a page's title, meta description, robots, viewport, and canonical tags for common SEO issues.

Generate a ready-to-paste <head> snippet with title, meta description, robots, viewport, and canonical tags.

Fetch a page (or paste HTML) and check viewport meta correctness plus weak signals of responsive CSS. Reads HTML signals only, not a rendering test.

Check for a page-level nofollow directive and see every link's rel attribute: nofollow, sponsored, ugc, or dofollow.

Check a page's meta robots tag, X-Robots-Tag header, and robots.txt for anything blocking it from search results.

Check a page's Open Graph tags against the protocol's required set and catch a relative og:image URL.

Generate a ready-to-paste og:* meta tag block for a page's social link preview.

Fetch or paste a real page and see its actual og:title/og:description/og:image rendered as share cards.

Generate paste-ready Organization JSON-LD, including a social profile (sameAs) list and contact point.

Generate paste-ready Person JSON-LD with a sameAs list of social profile links.

Generate paste-ready Product JSON-LD with a nested Offer and optional AggregateRating.

Compute the Flesch Reading Ease score and Flesch-Kincaid Grade Level for pasted text.

Paste body text and estimate reading time in minutes at a chosen reading speed.

Generate paste-ready Recipe JSON-LD with ingredient and step lists and ISO 8601 timings.

Check whether a URL redirects, where it ends up, and trace the full multi-hop chain from a pasted curl -IL trace.

Generate paste-ready Review JSON-LD for a Product, LocalBusiness, Book, Movie, or Recipe.

Paste JSON-LD and preview a mockup of how it might render as a Google rich result: stars, FAQ accordion, breadcrumbs, or a recipe card.

Build a robots.txt file from rule groups and sitemap URLs, with one-click presets for common setups.

Fetch or paste a robots.txt file and test whether a given path is allowed for a specific crawler.

Check a page's response headers against the six baseline security headers OWASP recommends, with an overall score.

Generate several template-based title tag variants from a keyword, brand, and optional modifier, with a ~60 char SERP flag.

Paste sitemap XML and a list of URLs, and see which pages are missing from each side.

Type an OG title, description, image, and site name, and preview how the link card would look across six platforms.

Generate paste-ready SoftwareApplication JSON-LD with offer and rating.

Validate JSON-LD structured data against schema.org's required and recommended properties for common types.

Measure a page title's rendered pixel width and flag likely SERP truncation.

Validate twitter:card tags and see which fields fall back to Open Graph when a twitter:* tag is missing.

Normalize a URL: lowercase the host, strip tracking params, sort the rest, fix trailing slashes, and drop the fragment.

Measure a URL's character and UTF-8 byte length, break it into parts, and flag it against the ~75-100 char SEO guidance.

Build a campaign-tagged URL by appending utm_source, utm_medium, utm_campaign, and optional UTM parameters.

Paste a URL and see every utm_* parameter it carries, plus other query params and the base URL with them stripped.

Generate paste-ready VideoObject JSON-LD with thumbnail, duration, and content/embed URLs.

Generate paste-ready WebSite JSON-LD, with an optional sitelinks search box SearchAction.

Turn a plain list of URLs into a valid sitemap.xml file, with optional shared lastmod, changefreq, and priority.

Fetch or paste a sitemap.xml file and check it against the sitemaps.org protocol's structure and limits.