vital-scans open quality ledger

www.cms.gov: third parties

Third-party origins serving resources to www.cms.gov across the 644 page(s) measured in 2026-W39. 14 distinct third-party domains, 12 of them serving JavaScript (JS). Costs are medians per page the vendor appears on. · Download CSV

Third-party JavaScript is easy to add and often reduces accessibility and performance — it injects DOM the site owner never reviewed and adds load time. "Pages w/ finding" is the share of pages carrying this vendor that also had an accessibility finding: an association to investigate, not proof the vendor caused it. Third parties vary per page, so a vendor on few pages may simply not have been sampled elsewhere.

Third-party vendors on www.cms.gov, 2026-W39 — sortable.
Vendor (registrable domain) Pages Median bytes Median requests Median load Pages w/ finding
qualtrics.com JS 287 846 KB 16 590 ms 24%
googletagmanager.com JS 287 156 KB 1 2 ms 24%
digitalgov.gov JS 287 30 KB 1 1 ms 24%
tiqcdn.com JS 287 21 KB 4 8 ms 24%
adoberesources.net JS 287 20 KB 1 1 ms 24%
youtube.com JS 287 10 KB 2 44 ms 24%
jsdelivr.net JS 287 8 KB 2 101 ms 63%
gstatic.com JS 233 1.5 MB 9 6 ms 58%
google.com JS 233 41 KB 4 371 ms 58%
google-analytics.com 40 0 KB 1 24 ms 70%
demdex.net 14 1 KB 1 39 ms 36%
datatables.net JS 5 114 KB 3 133 ms 40%
salesforce-sites.com JS 1 10.5 MB 26 634 ms 0%
mapbox.com JS 1 2.7 MB 81 1087 ms 100%