A native 500-page crawl of gplcoffee.dev against a 531-page WebSite Auditor export from 2026-05-18. Every non-zero delta gets one line explaining it, not a claim that everything matched.
500 / 500
pages fetched, 0 failed
531
page WebSite Auditor export, 2026-05-18
1,376
issues in that export
33 / 33
categories, parser exact
The parser was exact on all five summary totals and all 33 categories. Of those 33, 14 matched outright, including all four structural-health checks - robots, sitemap, www, and http/https - plus custom 404 handling. Every remaining category had a non-zero delta, and every one of those traces to exactly one of three causes.
The 500-page cap
A handful of categories differ only because their evidence lives in the part of the site the run did not reach. Empty titles and duplicate-title groups both fall entirely outside the crawled 500 - the counts are floors, not misses.
Genuine site drift since May
The export is from 2026-05-18. Legacy links started 404ing after a domain migration, brand icons picked up alt text, and product titles grew version strings - the site kept moving, and the native crawl caught up to it.
A crawler gap, found and fixed during the pass
Robots-disallowed resources were not checked before this pass, so restricted-from-indexing coverage undercounted WebSite Auditor. Fixed in the same pass that found it, and re-verified.
A sample of the full delta table - the same evidence-first format the app itself uses for a finding, not a rounded-off summary.
| Category | WSA | Native | Cause | Explanation |
|---|---|---|---|---|
| Resources with 5xx | 0 | 3 | Site drift | One genuine 503 and two domains that went dead since May - real drift. (The raw count was 12 until this same pass also recalibrated away 9 false TIMEOUT matches, which are our checker being throttled, not the site failing.) |
| Empty alt text | 199 | 4 | Site drift | 188 of the WSA count were brand icons with no alt text in May; they carry it today. The remaining 4 are genuine, one of them correctly classed decorative. |
| Restricted from indexing | 190 | 478 | Gap, fixed | Resource checks did not consult robots.txt before this pass. Fixed: internal resources are now robots-gated the same way pages are. |
| Duplicate titles / metas | 7 / 7 | 0 / 4 | 500-page cap | The duplicate groups live in the part of the site outside the 500-page cap. A larger run would resolve the rest. |
Bring your own WebSite Auditor export - the Site Audit (details) report, not the summary - and we reconcile it against a live crawl of the same site, category by category.
Import your own exportA free scan reads 25 pages with the same catalog and hands back 3 fixes with the prompt to act on them. What the free scan does