Every result is calculated live. We state the scope of each check and never estimate traffic, rankings or backlinks.
Runs twelve core checks on one URL: status, HTTPS, redirects, title, description, H1, canonical, vie...
Extracts the title tag and meta description and measures each.
Lists the H1 to H6 outline of a page in source order.
Shows the canonical link, meta robots and X-Robots-Tag directives.
Counts images and lists those with no alt attribute.
Finds JSON-LD blocks, confirms they parse, and lists the schema types.
Reads Open Graph and Twitter card tags used for social previews.
Lists hreflang alternates declared in the HTML head.
Confirms the page declares a responsive viewport.
Fetches robots.txt for a host and lists user-agents, disallow rules and sitemaps.
Fetches a sitemap, confirms it parses and counts entries.
Makes one request and reports the raw status code and any Location header.
Follows every redirect and shows each hop with status and timing.
Measures HTML size, transferred bytes, DOM size and counts of scripts, styles and images.
Reports compression and caching headers for the HTML document.
Counts words, characters, sentences and reading time as you type.
Calculates the Flesch Reading Ease score and average sentence length.
Lists the most repeated words and two-word phrases in your text.
Previews a title, URL and description as a search-style result.
Generates valid FAQPage JSON-LD from questions and answers.
Lists all response headers from the final URL.
Checks six common security response headers.
Queries A, AAAA, MX, NS, TXT and CAA records.
Reads the certificate served on port 443: issuer, expiry and alternative names.