SEO Site Audit — Website Crawler & Lighthouse
Pricing
Pay per event + usage
SEO site audit crawler: status codes, titles, meta, H1, canonicals, indexability, broken links, duplicates, speed, onpage score & Lighthouse.
id
Required
Stable row ID: first 16 hex characters of SHA-256 of website + page URL. Same page of the same website gets the same ID in every run.
website
Required
The website exactly as you entered it in the input.
url
Required
Crawled page URL.
pageType
Optional
"html" (normal page), "broken" (4xx/5xx or unreachable) or "redirect" (3xx).
statusCode
Optional
HTTP status code of the page.
redirectUrl
Optional
Redirect target (Location header) for redirect pages.
onpageScore
Optional
Onpage score 0–100 computed from the page checks (100 = no issues).
issuesCount
Required
Number of issues found on the page.
issues
Required
Issues in plain English, e.g. "Images without alt text".
issueCodes
Optional
Machine-readable issue codes matching "issues", e.g. "noImageAlt".
issueDetails
Optional
One entry per issue code, in the same order: {code, priority (high / medium / low), fixHint (one-sentence fix suggestion)}.
title
Optional
Content of the tag.
titleLength
Optional
Title length in characters.
titleMissing
Optional
True if the page has no title (HTML pages only).
titleTooShort
Optional
True if the title is shorter than "Title too short below" (default 30).
titleTooLong
Optional
True if the title is longer than "Title too long above" (default 65).
duplicateTitle
Optional
True if another crawled page of the website has the same title.
metaDescription
Optional
Content of the meta description tag.
metaDescriptionLength
Optional
Meta description length in characters.
metaDescriptionMissing
Optional
True if the page has no meta description (HTML pages only).
duplicateMetaDescription
Optional
True if another crawled page has the same meta description.
h1
Optional
First H1 heading on the page.
h1Count
Optional
Number of H1 headings.
h1Missing
Optional
True if the page has no H1 (HTML pages only).
h1List
Optional
All H1 headings on the page.
h2Count
Optional
Number of H2 headings.
h3Count
Optional
Number of H3 headings.
wordCount
Optional
Words of visible text on the page.
textToHtmlRatio
Optional
Visible text size divided by HTML size (0–1).
readabilityScore
Optional
Flesch-Kincaid readability index of the page text.
titleRelevance
Optional
How well the title matches the page content (0–1).
descriptionRelevance
Optional
How well the meta description matches the page content (0–1).
canonicalUrl
Optional
URL in the canonical link tag.
canonicalIsSelf
Optional
True if the canonical URL points to the page itself.
indexable
Optional
True if search engines may index the page.
nonIndexableReason
Optional
Why the page is not indexable, e.g. robots_txt, meta_tag, redirect, canonicalized_to_other_url, error_status_code.
metaRobotsFollow
Optional
False if the meta robots tag says nofollow.
duplicateContent
Optional
True if another crawled page has (nearly) the same content.
hasBrokenLinks
Optional
True if the page links to a broken URL.
brokenLinksCount
Optional
Number of broken links listed for the page.
brokenLinks
Optional
Broken link targets (URL, status code, anchor text), up to 100 per page.
hasBrokenResources
Optional
True if an image, script or stylesheet on the page is broken.
clickDepth
Optional
Clicks from the start page (0 = start page).
internalLinksCount
Optional
Links to pages of the same website.
externalLinksCount
Optional
Links to other websites.
inboundLinksCount
Optional
Links from other crawled pages to this page.
imagesCount
Optional
Number of images on the page.
imagesSizeBytes
Optional
Total size of the page images in bytes.
imagesWithoutAlt
Optional
True if at least one image has no alt text.
scriptsCount
Optional
Number of scripts on the page.
stylesheetsCount
Optional
Number of stylesheets on the page.
renderBlockingScripts
Optional
Number of render-blocking scripts.
renderBlockingStylesheets
Optional
Number of render-blocking stylesheets.
pageSizeBytes
Optional
HTML size in bytes (uncompressed).
compressedSizeBytes
Optional
HTML size in bytes as transferred (compressed).
totalTransferSizeBytes
Optional
Total transferred bytes including resources.
domSize
Optional
Size of the rendered DOM.
loadTimeMs
Optional
Total page load time in ms.
timeToFirstByteMs
Optional
Time to first byte (server waiting time) in ms.
downloadTimeMs
Optional
HTML download time in ms.
connectionTimeMs
Optional
Connection time in ms.
timeToInteractiveMs
Optional
Time to interactive in ms.
domCompleteMs
Optional
Time until the DOM is complete in ms.
largestContentfulPaintMs
Optional
Largest Contentful Paint in ms (with Full browser rendering only).
firstInputDelayMs
Optional
First Input Delay in ms (with Full browser rendering only).
cumulativeLayoutShift
Optional
Cumulative Layout Shift (with Full browser rendering only).
isHttps
Optional
True if the page is served over HTTPS.
hasStructuredData
Optional
True if the page has schema.org / microdata markup.
metaKeywords
Optional
Content of the meta keywords tag.
charset
Optional
Character set of the page (code or name).
generator
Optional
Content of the meta generator tag (CMS).
faviconUrl
Optional
Favicon URL.
misspelledWords
Optional
Misspelled words (with "Check spelling" on).
deprecatedTags
Optional
Deprecated HTML tags used on the page.
duplicateMetaTags
Optional
Meta tags that appear more than once.
contentEncoding
Optional
Content-Encoding header, e.g. gzip or br.
mediaType
Optional
Content-Type media type, e.g. text/html.
server
Optional
Server header.
cacheable
Optional
True if the page may be cached.
cacheTtlSeconds
Optional
Cache lifetime in seconds.
urlLength
Optional
URL length in characters.
lastModified
Optional
Last-modified dates from the HTTP header, sitemap and meta tag.
customJsResult
Optional
Result of your "Custom JavaScript" snippet.
checks
Optional
All 60+ page checks as true/false (with "Include all check results" on).
lighthousePerformanceScore
Optional
Lighthouse performance score 0–100 (Lighthouse pages only).
lighthouseAccessibilityScore
Optional
Lighthouse accessibility score 0–100.
lighthouseBestPracticesScore
Optional
Lighthouse best practices score 0–100.
lighthouseSeoScore
Optional
Lighthouse SEO score 0–100.
lighthouse
Optional
Lighthouse details: device, scores, FCP, LCP, TBT, CLS, Speed Index, TTI, server response time, failed audits, version.
changedSinceLastRun
Optional
True if the page is new or changed since the previous run (null on the first run).
changeType
Optional
new, changed, unchanged or baseline (first run).
changedFields
Optional
Which fields changed since the previous run, e.g. ["title", "onpageScore"].
previousOnpageScore
Optional
Onpage score in the previous run.
previousStatusCode
Optional
Status code in the previous run.
javascriptRendered
Optional
True if the page was crawled with JavaScript rendering.
browserRendered
Optional
True if the page was crawled with full browser rendering.
fetchedAt
Optional
When the page was fetched (ISO 8601).
scrapedAt
Required
When this run started (ISO 8601).
socialTags
Optional
Open Graph and Twitter Card tags as key/value pairs.