vital-scans open quality ledger

www.cms.gov: third parties

Third-party origins serving resources to www.cms.gov across the 869 page(s) measured in 2026-W25. 18 distinct third-party domains, 11 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-W25 — sortable.
Vendor (registrable domain) Pages Median bytes Median requests Median load Pages w/ finding
youtube.com new JS 449 10 KB 2 35 ms 52%
qualtrics.com new JS 447 858 KB 16 676 ms 52%
googletagmanager.com new JS 447 149 KB 1 2 ms 52%
digitalgov.gov new JS 447 29 KB 1 1 ms 52%
tiqcdn.com new JS 447 21 KB 4 8 ms 52%
adoberesources.net new JS 447 20 KB 1 1 ms 52%
gstatic.com new JS 361 1.6 MB 9 6 ms 66%
google.com new JS 361 41 KB 4 385 ms 66%
google-analytics.com new 164 0 KB 1 18 ms 96%
demdex.net new 9 1 KB 1 46 ms 33%
datatables.net new JS 4 114 KB 3 80 ms 25%
ytimg.com new 4 55 KB 4 0 ms 75%
googleapis.com new 4 4 KB 4 48 ms 75%
doubleclick.net new JS 4 0 KB 6 0 ms 75%
ggpht.com new 2 2 KB 1 19 ms 100%
aspnetcdn.com new JS 1 59 KB 2 118 ms 0%
youtu.be new 1 0 KB 1 0 ms 100%
googlevideo.com new 1 0 KB 2 0 ms 100%