vital-scans open quality ledger

www.cms.gov: third parties

Third-party origins serving resources to www.cms.gov across the 993 page(s) measured in 2026-W35. 21 distinct third-party domains, 16 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-W35 — sortable.
Vendor (registrable domain) Pages Median bytes Median requests Median load Pages w/ finding
jsdelivr.net JS 500 8 KB 2 103 ms 72%
gstatic.com JS 411 1.5 MB 9 7 ms 68%
google.com JS 411 41 KB 4 367 ms 68%
googletagmanager.com JS 405 154 KB 1 3 ms 29%
digitalgov.gov JS 405 30 KB 1 1 ms 29%
tiqcdn.com JS 405 21 KB 4 9 ms 29%
adoberesources.net JS 405 20 KB 1 1 ms 29%
qualtrics.com JS 404 844 KB 16 623 ms 29%
youtube.com JS 404 10 KB 2 53 ms 29%
google-analytics.com 93 0 KB 1 22 ms 90%
demdex.net 12 1 KB 1 75 ms 42%
datatables.net JS 5 114 KB 3 88 ms 20%
slideshare.net JS 3 95 KB 8 276 ms 33%
mapbox.com JS 1 2.1 MB 20 1027 ms 100%
slidesharecdn.com new JS 1 647 KB 26 0 ms 0%
unpkg.com JS 1 561 KB 4 599 ms 100%
osano.com new JS 1 109 KB 4 0 ms 0%
ytimg.com 1 76 KB 1 0 ms 100%
doubleclick.net JS 1 0 KB 3 0 ms 100%
googleapis.com 1 0 KB 1 0 ms 100%
sentry.io new 1 0 KB 1 0 ms 0%