PageSourceSearch
Opt out API access

Site profile

eventcat.com

Built with @clerk/ui 1.34.0, gather-vue 8.20.3, dashjs 5.2.1, @marimo-team/frontend 0.25.0, @duckdb/duckdb-wasm 1.33.1-dev57.0, @reachfive/identity-core 1.42.0, @reachfive/identity-ui 2.1.0, jspdf 4.2.1, @flowbase-co/boosters-tooltip 1.1.2, @banana-ui/banana 1.20.1, @supabase/phoenix 0.4.5, @desivocal/agents-cdn 1.0.21 and more. 5 pages and 168 stored files, last crawled 2026-10-03.

rank 1,894,038 28 libraries 0 identifiers 32 third-party hosts 1 crawl open the site

Technologies and libraries

Recognised by fingerprinting the stored files and bundles against known releases; a version is the release the bytes match.

LibraryVersionSeen
@clerk/ui 1.34.0 2026-10-03
gather-vue 8.20.3 2026-10-03
dashjs 5.2.1 2026-10-03
@marimo-team/frontend 0.25.0 2026-10-03
@duckdb/duckdb-wasm 1.33.1-dev57.0 2026-10-03
@reachfive/identity-core 1.42.0 2026-10-03
@reachfive/identity-ui 2.1.0 2026-10-03
jspdf 4.2.1 2026-10-03
@flowbase-co/boosters-tooltip 1.1.2 2026-10-03
@banana-ui/banana 1.20.1 2026-10-03
@supabase/phoenix 0.4.5 2026-10-03
@desivocal/agents-cdn 1.0.21 2026-10-03
agora-rtm-sdk 2.3.0 2026-10-03
@vitest/utils 5.0.2 2026-10-03
@recogito/annotorious 2.7.14 2026-10-03
@electric-sql/pglite 0.5.8 2026-10-03
@coveo/headless 3.57.0 2026-10-03
@getopenpay/openpay-js 0.5.25 2026-10-03
@live-codes/monaco-editor 0.3.1 2026-10-03
@ant-design/x 2.9.0 2026-10-03
@myparcel-dev/delivery-options 7.5.3 2026-10-03
@inkeep/agents-ui-js-cloud 0.17.8 2026-10-03
dealposbooks 6.29.4 2026-10-03
tify 0.36.2 2026-10-03
@cd2/fileboy-browser 0.15.4 2026-10-03
@pydantic/ai-chat-ui 2.3.0 2026-10-03
swr 2.5.1 2026-09-25
@joyfill/components 4.0.0-rc26 2026-09-25

Tracking, tag and verification IDs

No analytics property, tag manager container, pixel or site-verification token was found in the stored source.

Third-party hosts

Hosts outside eventcat.com that its pages load scripts, frames or stylesheets from, and that its own scripts name in absolute URLs (connect). Each links to every site loading from the same host.

HostLoaded asFound in
aiplatform.googleapis.com connect view source
api.iconify.design connect view source
api.simplesvg.com connect view source
api.unisvg.com connect view source
api2.amplitude.com connect view source
browser-intake-datadoghq.com connect view source
cdn.jsdelivr.net stylesheet view source
chat-support.xl8.ai connect view source
cmdhxpwmlalsaqwxippw.supabase.co connect view source
docs.google.com connect view source
dummy.com connect view source
fonts.googleapis.com connect view source
generativelanguage.googleapis.com connect view source
github.com connect view source
js.cobrowse.io connect view source
react.dev connect view source
support.xl8.ai connect view source
va.vercel-scripts.com connect view source
vercel.live connect view source
vuejs.org connect view source
widget.freshworks.com connect view source
www.facebook.com connect view source
www.google.com connect view source
www.googletagmanager.com connect view source
www.instagram.com connect view source
www.linkedin.com connect view source
www.w3.org connect view source
www.xl8.ai connect view source
www.youtube-nocookie.com iframe connect view source
www.youtube.com iframe connect view source
xl8-chatbot-frontend.vercel.app connect view source
xl8.us11.list-manage.com connect view source

Stored pages and scripts

The newest stored version of each file, newest first@if (p.FilesTruncated) { (the 500 newest of 168) }. Versions are the crawls at which the file was new or its content changed; each opens the file as it was then, rebuilt from the same stored chunks.

FileKindSizeCollectedVersions
https://app.eventcat.com/raw-audio-core.js js 2.1 KB 2026-10-03 current
https://app.eventcat.com/_nuxt/DFtPXDAi.js js 193.6 KB 2026-10-03 current
https://app.eventcat.com/_nuxt/DVZ_M9k5.js js 17.3 KB 2026-10-03 current
https://app.eventcat.com/_nuxt/D1abdwPm.js js 2.4 KB 2026-10-03 current
https://app.eventcat.com/raw-audio-processor.js js 1.8 KB 2026-10-03 current
https://app.eventcat.com/_nuxt/CFs_RTuY.js js 60.7 KB 2026-10-03 current
https://app.eventcat.com/_nuxt/D9SWWSur.js js 341.1 KB 2026-10-03 current
https://app.eventcat.com/_nuxt/DDe4e5c4.js js 2.8 KB 2026-10-03 current
https://app.eventcat.com/_nuxt/F7L_TX4P.js js 1.2 KB 2026-10-03 current
https://app.eventcat.com/_nuxt/CFO4zrUO.js js 4.2 KB 2026-10-03 current
https://app.eventcat.com/_nuxt/DbTXiTCW.js js 8.5 KB 2026-10-03 current
https://app.eventcat.com/_nuxt/DV5TcJ2S.js js 2.6 KB 2026-10-03 current
https://app.eventcat.com/_nuxt/C0DSWmxB.js js 181 B 2026-10-03 current
https://app.eventcat.com/_nuxt/fSRlCCfA.js js 8 KB 2026-10-03 current
https://app.eventcat.com/_nuxt/3xmdJMva.js js 145 B 2026-10-03 current
https://app.eventcat.com/_nuxt/5hlX6hrs.js js 496 B 2026-10-03 current
https://app.eventcat.com/_nuxt/CzxJ8WlN.js js 496 B 2026-10-03 current
https://app.eventcat.com/_nuxt/DPAYM7xt.js js 496 B 2026-10-03 current
https://app.eventcat.com/_nuxt/C6hHHKpT.js js 496 B 2026-10-03 current
https://app.eventcat.com/_nuxt/CYAYiu6M.js js 496 B 2026-10-03 current
https://app.eventcat.com/_nuxt/BsTEMPq4.js js 490 B 2026-10-03 current
https://app.eventcat.com/_nuxt/Dfc3wPMF.js js 181 B 2026-10-03 current
https://app.eventcat.com/_nuxt/CQOx-2gQ.js js 189 B 2026-10-03 current
https://app.eventcat.com/_nuxt/DGNg-dI7.js js 183 B 2026-10-03 current
https://app.eventcat.com/_nuxt/BBAredq3.js js 348 B 2026-10-03 current
https://app.eventcat.com/_nuxt/Cl6Qia5a.js js 489 B 2026-10-03 current
https://app.eventcat.com/_nuxt/qgt5fHYt.js js 251 B 2026-10-03 current
https://app.eventcat.com/_nuxt/Dnypo8ig.js js 180 B 2026-10-03 current
https://app.eventcat.com/_nuxt/H364eIXB.js js 418 B 2026-10-03 current
https://app.eventcat.com/_nuxt/hlnk6Glm.js js 389.7 KB 2026-10-03 current
https://app.eventcat.com/_nuxt/CtbQCf3_.js js 11.6 KB 2026-10-03 current
https://app.eventcat.com/_nuxt/DJZXMShm.js js 1.3 KB 2026-10-03 current
https://app.eventcat.com/_nuxt/BOuvzRAW.js js 8.8 KB 2026-10-03 current
https://app.eventcat.com/_nuxt/DrxETpUq.js js 235.6 KB 2026-10-03 current
https://app.eventcat.com/_nuxt/CPZAGvsx.js js 92.3 KB 2026-10-03 current
https://app.eventcat.com/_nuxt/DYmeYKoT.js js 8.9 KB 2026-10-03 current
https://app.eventcat.com/_nuxt/B_HySCT2.js js 6.8 KB 2026-10-03 current
https://app.eventcat.com/_nuxt/-BKEBest.js js 12.3 KB 2026-10-03 current
https://app.eventcat.com/_nuxt/Bqw7ibV5.js js 1.2 KB 2026-10-03 current
https://app.eventcat.com/_nuxt/0D4KtIIr.js js 75.2 KB 2026-10-03 current
https://app.eventcat.com/_nuxt/B1WDyROF.js js 1.2 KB 2026-10-03 current
https://app.eventcat.com/_nuxt/Dn4LXld3.js js 2.5 KB 2026-10-03 current
https://app.eventcat.com/_nuxt/DnP0NoEL.js js 7.9 KB 2026-10-03 current
https://app.eventcat.com/_nuxt/CuLj3fB7.js js 13.2 KB 2026-10-03 current
https://app.eventcat.com/_nuxt/DgFj0Tfo.js js 6.4 KB 2026-10-03 current
https://app.eventcat.com/_nuxt/Nt5aYwYz.js js 2.2 KB 2026-10-03 current
https://app.eventcat.com/_nuxt/DcAcea2_.js js 1.4 KB 2026-10-03 current
https://app.eventcat.com/_nuxt/lQdMstpZ.js js 1.1 KB 2026-10-03 current
https://app.eventcat.com/_nuxt/BDxtlBzU.js js 2.3 KB 2026-10-03 current
https://app.eventcat.com/_nuxt/BCRrMUJB.js js 1.7 KB 2026-10-03 current
https://app.eventcat.com/_nuxt/DUaX5DwM.js js 1.6 KB 2026-10-03 current
https://app.eventcat.com/_nuxt/BmaYREHZ.js js 16.5 KB 2026-10-03 current
https://app.eventcat.com/_nuxt/CdXBaVpB.js js 916 B 2026-10-03 current
https://app.eventcat.com/_nuxt/C5DBwbar.js js 4.9 KB 2026-10-03 current
https://app.eventcat.com/_nuxt/Bf2Rr0Og.js js 5.8 KB 2026-10-03 current
https://app.eventcat.com/_nuxt/CVaow-vs.js js 2.4 KB 2026-10-03 current
https://app.eventcat.com/_nuxt/B5zPzU_3.js js 31 KB 2026-10-03 current
https://app.eventcat.com/_nuxt/Duuzd2M5.js js 22.4 KB 2026-10-03 current
https://app.eventcat.com/_nuxt/B2-gEwuG.js js 15.8 KB 2026-10-03 current
https://app.eventcat.com/_nuxt/DPBjQaVX.js js 14.7 KB 2026-10-03 current
https://app.eventcat.com/_nuxt/X5PEDk8-.js js 7.6 KB 2026-10-03 current
https://app.eventcat.com/_nuxt/BB8x-DL3.js js 1.5 KB 2026-10-03 current
https://app.eventcat.com/_nuxt/BpYE9svy.js js 3.7 KB 2026-10-03 current
https://app.eventcat.com/_nuxt/Bk09_Nam.js js 8.6 KB 2026-10-03 current
https://app.eventcat.com/_nuxt/wNLFMQqi.js js 182 B 2026-10-03 current
https://app.eventcat.com/_nuxt/B_yh_2-H.js js 16.4 KB 2026-10-03 current
https://app.eventcat.com/_nuxt/CXK3ZGW1.js js 10.4 KB 2026-10-03 current
https://app.eventcat.com/_nuxt/tXkJKEs7.js js 1.8 KB 2026-10-03 current
https://app.eventcat.com/_nuxt/DYm3q4Kp.js js 163 B 2026-10-03 current
https://app.eventcat.com/_nuxt/rgyuxs3n.js js 8.1 KB 2026-10-03 current
https://app.eventcat.com/_nuxt/Dnv99mz2.js js 2.2 KB 2026-10-03 current
https://app.eventcat.com/_nuxt/1gMCADAK.js js 5.3 KB 2026-10-03 current
https://app.eventcat.com/_nuxt/CHqoLdz7.js js 3.8 KB 2026-10-03 current
https://app.eventcat.com/_nuxt/Csi5s3kS.js js 3 KB 2026-10-03 current
https://app.eventcat.com/_nuxt/B7an034V.js js 3.8 KB 2026-10-03 current
https://app.eventcat.com/_nuxt/C0Qpmmua.js js 124.9 KB 2026-10-03 current
https://app.eventcat.com/_nuxt/C3nbMWfS.js js 2.6 KB 2026-10-03 current
https://app.eventcat.com/_nuxt/DEOD3V29.js js 637 B 2026-10-03 current
https://app.eventcat.com/_nuxt/CZ7Pc3pZ.js js 8.1 KB 2026-10-03 current
https://app.eventcat.com/_nuxt/03p5dYqs.js js 786 B 2026-10-03 current
https://app.eventcat.com/_nuxt/qpvNNpKA.js js 4.1 KB 2026-10-03 current
https://app.eventcat.com/_nuxt/ChVrS_a3.js js 3.4 KB 2026-10-03 current
https://app.eventcat.com/_nuxt/J5rG8o3e.js js 1.7 KB 2026-10-03 current
https://app.eventcat.com/_nuxt/QIe6ew5F.js js 2.4 KB 2026-10-03 current
https://app.eventcat.com/_nuxt/Dxj_L-QO.js js 1.6 KB 2026-10-03 current
https://app.eventcat.com/_nuxt/Xm4yVVFI.js js 11.1 KB 2026-10-03 current
https://app.eventcat.com/_nuxt/C6aZF-sx.js js 1.6 KB 2026-10-03 current
https://app.eventcat.com/_nuxt/C7B8jr7A.js js 13 KB 2026-10-03 current
https://app.eventcat.com/_nuxt/CacbMZfb.js js 3.7 KB 2026-10-03 current
https://app.eventcat.com/_nuxt/yOVKYAlt.js js 20.1 KB 2026-10-03 current
https://app.eventcat.com/_nuxt/qrxY15BN.js js 20.4 KB 2026-10-03 current
https://app.eventcat.com/_nuxt/B5pJad9D.js js 4.8 KB 2026-10-03 current
https://app.eventcat.com/_nuxt/BECeV0AY.js js 10.5 KB 2026-10-03 current
https://app.eventcat.com/_nuxt/ChTdLi-G.js js 5.2 KB 2026-10-03 current
https://app.eventcat.com/_nuxt/DHoINQGC.js js 1.9 KB 2026-10-03 current
https://app.eventcat.com/_nuxt/C9y3v6I9.js js 16.9 KB 2026-10-03 current
https://app.eventcat.com/_nuxt/9OwVfREP.js js 19.3 KB 2026-10-03 current
https://app.eventcat.com/_nuxt/BB0Hd7G4.js js 25.6 KB 2026-10-03 current
https://app.eventcat.com/_nuxt/BecD0ujW.js js 1.9 KB 2026-10-03 current
https://app.eventcat.com/_nuxt/rPSf8o7b.js js 5.4 KB 2026-10-03 current
https://app.eventcat.com/_nuxt/Wjei9Un7.js js 4.1 KB 2026-10-03 current
https://app.eventcat.com/_nuxt/mw5vfG0O.js js 249 B 2026-10-03 current
https://app.eventcat.com/_nuxt/lsqG60HY.js js 1.4 KB 2026-10-03 current
https://app.eventcat.com/_nuxt/BK_j_WHi.js js 11.8 KB 2026-10-03 current
https://app.eventcat.com/_nuxt/Dbz7QRAC.js js 4.5 KB 2026-10-03 current
https://app.eventcat.com/_nuxt/Cx1bpRXh.js js 6.2 KB 2026-10-03 current
https://app.eventcat.com/_nuxt/CYytMQ9X.js js 264 B 2026-10-03 current
https://app.eventcat.com/_nuxt/36_oELzs.js js 688 B 2026-10-03 current
https://app.eventcat.com/_nuxt/C1Zjd1Jp.js js 3.7 KB 2026-10-03 current
https://app.eventcat.com/_nuxt/Bk1U6TTW.js js 924 B 2026-10-03 current
https://app.eventcat.com/_nuxt/DaS-vjl5.js js 32.8 KB 2026-10-03 current
https://www.eventcat.com/_next/static/immutable/chunks/1g-5sge1tvpkk.js js 7.3 KB 2026-10-03 2026-10-03
https://www.eventcat.com/_next/static/immutable/chunks/3l5uiqavk9dh9.js js 17.8 KB 2026-10-03 2026-10-03
https://app.eventcat.com/_nuxt/Dm3G3mgr.js js 3.6 KB 2026-10-03 current
https://app.eventcat.com/_nuxt/B7h12gL7.js js 276 B 2026-10-03 current
https://app.eventcat.com/_nuxt/CxIZtCgj.js js 144 B 2026-10-03 current
https://app.eventcat.com/_nuxt/DojcdRM7.js js 696 B 2026-10-03 current
https://app.eventcat.com/_nuxt/Bm92f-5u.js js 1.5 KB 2026-10-03 current
https://app.eventcat.com/_nuxt/DQXSBt17.js js 915 B 2026-10-03 current
https://app.eventcat.com/_nuxt/u7bQcpfK.js js 61.1 KB 2026-10-03 current
https://app.eventcat.com/_nuxt/C_TkrYt6.js js 2.2 KB 2026-10-03 current
https://app.eventcat.com/_nuxt/Bf-sljlt.js js 6.3 KB 2026-10-03 current
https://app.eventcat.com/_nuxt/BmYKP4d2.js js 2.6 KB 2026-10-03 current
https://app.eventcat.com/_nuxt/DTrYP5Z8.js js 3.2 KB 2026-10-03 current
https://app.eventcat.com/_nuxt/BBC0B_jl.js js 1 KB 2026-10-03 current
https://app.eventcat.com/_nuxt/x9vT8v-8.js js 3.4 KB 2026-10-03 current
https://app.eventcat.com/_nuxt/CQz_OEOA.js js 794 B 2026-10-03 current
https://app.eventcat.com/_nuxt/D5q2bIh7.js js 4.9 KB 2026-10-03 current
https://app.eventcat.com/_nuxt/CYioDH6v.js js 6 KB 2026-10-03 current
https://app.eventcat.com/_nuxt/OhvwrOX8.js js 988 B 2026-10-03 current
https://app.eventcat.com/_nuxt/DeyhbIsK.js js 300 B 2026-10-03 current
https://app.eventcat.com/_nuxt/DjYyup6L.js js 799.4 KB 2026-10-03 current
https://www.eventcat.com/_next/static/immutable/chunks/1lhhc4zj1z1ip.js js 13.5 KB 2026-10-03 2026-10-03
https://www.eventcat.com/_next/static/immutable/chunks/0c0hxoamwjsbw.js js 110 KB 2026-10-03 2026-10-03
https://www.eventcat.com/_next/static/immutable/chunks/1piu2rvymexsg.js js 20.8 KB 2026-10-03 2026-10-03
https://www.eventcat.com/_next/static/immutable/chunks/1weknagbbplik.js js 1.7 KB 2026-10-03 2026-10-03
https://www.eventcat.com/_next/static/immutable/chunks/3d6nn4a-mlhnf.js js 25.5 KB 2026-10-03 2026-10-03
https://www.eventcat.com/_next/static/immutable/chunks/1zd2qxyenhoxm.js js 40.2 KB 2026-10-03 2026-10-03
https://www.eventcat.com/_next/static/immutable/chunks/1dvv-5n0ciy97.js js 21.4 KB 2026-10-03 2026-10-03
https://www.eventcat.com/_next/static/immutable/chunks/3mxuvr8cf1nad.js js 23.1 KB 2026-10-03 2026-10-03
https://www.eventcat.com/_next/static/immutable/chunks/1cwn-g0a7azmm.js js 25.4 KB 2026-10-03 2026-10-03
https://www.eventcat.com/_next/static/immutable/chunks/308tyyihlnz0r.js js 22.4 KB 2026-10-03 2026-10-03
https://www.eventcat.com/_next/static/immutable/…/turbopack-14odciemv02gn.js js 9.5 KB 2026-10-03 2026-10-03
https://www.eventcat.com/_next/static/immutable/chunks/37-ochmwj1osf.js js 151.8 KB 2026-10-03 2026-10-03
https://www.eventcat.com/_next/static/immutable/chunks/0sy3_jwl6re6c.js js 223.1 KB 2026-10-03 2026-10-03
https://www.eventcat.com/_next/static/immutable/chunks/3hsiz62bhh6h5.js js 31.3 KB 2026-10-03 2026-10-03
https://www.eventcat.com/en/eventcat-stories/news-updates html 112.3 KB 2026-10-03 2026-10-03
https://www.eventcat.com/en/eventcat-stories/all html 355 KB 2026-10-03 2026-10-03
https://www.eventcat.com/en/products/onlinemeeting html 140.1 KB 2026-10-03 2026-10-03
https://app.eventcat.com/login?locale=en html 229 KB 2026-10-03 2026-10-03
https://www.eventcat.com/en html 102.1 KB 2026-10-03 2026-10-03
https://www.eventcat.com/_next/static/chunks/3ry…pl_6WZExruemsFVVdP9CmEV5fvuPrvu js 7.3 KB 2026-09-25 current
https://www.eventcat.com/_next/static/chunks/1hd…pl_6WZExruemsFVVdP9CmEV5fvuPrvu js 17.8 KB 2026-09-25 current
https://www.eventcat.com/_next/static/chunks/2yv…pl_6WZExruemsFVVdP9CmEV5fvuPrvu js 6.4 KB 2026-09-25 current
https://www.eventcat.com/_next/static/chunks/0cz…pl_6WZExruemsFVVdP9CmEV5fvuPrvu js 110 KB 2026-09-25 current
https://www.eventcat.com/_next/static/chunks/082…pl_6WZExruemsFVVdP9CmEV5fvuPrvu js 20.8 KB 2026-09-25 current
https://www.eventcat.com/_next/static/chunks/1tf…pl_6WZExruemsFVVdP9CmEV5fvuPrvu js 1.7 KB 2026-09-25 current
https://www.eventcat.com/_next/static/chunks/304…pl_6WZExruemsFVVdP9CmEV5fvuPrvu js 43.4 KB 2026-09-25 current
https://www.eventcat.com/_next/static/chunks/1v-…pl_6WZExruemsFVVdP9CmEV5fvuPrvu js 40.2 KB 2026-09-25 current
https://www.eventcat.com/_next/static/chunks/1zr…pl_6WZExruemsFVVdP9CmEV5fvuPrvu js 19.7 KB 2026-09-25 current
https://www.eventcat.com/_next/static/chunks/2ca…pl_6WZExruemsFVVdP9CmEV5fvuPrvu js 22 KB 2026-09-25 current
https://www.eventcat.com/_next/static/chunks/44x…pl_6WZExruemsFVVdP9CmEV5fvuPrvu js 53.4 KB 2026-09-25 current
https://www.eventcat.com/_next/static/chunks/2l-…pl_6WZExruemsFVVdP9CmEV5fvuPrvu js 11.6 KB 2026-09-25 current
https://www.eventcat.com/_next/static/chunks/tur…pl_6WZExruemsFVVdP9CmEV5fvuPrvu js 10.8 KB 2026-09-25 current
https://www.eventcat.com/_next/static/chunks/1jz…pl_6WZExruemsFVVdP9CmEV5fvuPrvu js 43.4 KB 2026-09-25 current
https://www.eventcat.com/_next/static/chunks/34v…pl_6WZExruemsFVVdP9CmEV5fvuPrvu js 134.4 KB 2026-09-25 current
https://www.eventcat.com/_next/static/chunks/1kg…pl_6WZExruemsFVVdP9CmEV5fvuPrvu js 221 KB 2026-09-25 current
https://www.eventcat.com/_next/static/chunks/1wi…pl_6WZExruemsFVVdP9CmEV5fvuPrvu js 30.9 KB 2026-09-25 current

Timeline

One entry per crawl, newest first, with what changed since the crawl before: libraries, identifiers, third-party hosts and files. Historical versions stay viewable because the stored chunks are shared between versions, never copied.

  1. first crawl

    5 pages, 151 files, 4.6 MB; 26 libraries, 0 identifiers, 32 third-party hosts

    26 libraries added
    • @vitest/utils 5.0.2
    • @inkeep/agents-ui-js-cloud 0.17.8
    • @clerk/ui 1.34.0
    • @ant-design/x 2.9.0
    • jspdf 4.2.1
    • @reachfive/identity-core 1.42.0
    • @recogito/annotorious 2.7.14
    • dashjs 5.2.1
    • @reachfive/identity-ui 2.1.0
    • gather-vue 8.20.3
    • @myparcel-dev/delivery-options 7.5.3
    • tify 0.36.2
    • and 14 more
    34 third-party hosts added
    151 files added

Questions about eventcat.com

How does PageSourceSearch know what eventcat.com is built with?
From the site's own source code. The crawler stores the exact bytes of its pages and first-party scripts; the libraries are recognised by fingerprinting that code against known releases, the identifiers are read out of the tag snippets, and the third-party hosts are the script, iframe and stylesheet sources in the HTML and the absolute URLs inside the scripts. Nothing is inferred from headers or guessed.
How far back does the history of eventcat.com go?
To the first crawl the timeline lists. Every crawl records what the site looked like; when a file's content changes, its earlier version stays viewable because the stored chunks are never deleted, only mapped. A crawl that finds a file unchanged adds no copy.
Can I see an older version of a script from eventcat.com?
Yes. In the stored files list, every date under a file opens the version that was live at that crawl, with the same viewer as the current one. The raw bytes can be downloaded from there.
Which other websites use the same tracking IDs as eventcat.com?
Each identifier links to its reverse lookup, the list of every site in the index whose source carries the same id: the sites one analytics property or tag manager container is shared across.

Look up another site, browse sites by tracking ID, third-party host or technology. Site owners: see the crawler page for how stored pages are removed.