PageSourceSearch

Site profile

impactalpha.com

Built with bootstrap 5.0.0-alpha1, jquery 3.7.1, gtm, @clerk/ui 1.34.0, popper.js 1.16.0, vue 2.6.11, player-venom 0.3.6, aos 2.3.1, @blotoutio/providers-blotout-consent-sdk 1.73.0, cloudinary-video-player 4.1.2, dashjs 5.2.1, @marimo-team/frontend 0.25.0 and more. 6 pages and 138 stored files, last crawled 2026-10-02.

rank 388,500 43 libraries 8 identifiers 23 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
bootstrap 5.0.0-alpha1 2026-10-02
jquery 3.7.1 2026-10-02
gtm 2026-10-02
@clerk/ui 1.34.0 2026-10-02
popper.js 1.16.0 2026-10-02
vue 2.6.11 2026-10-02
player-venom 0.3.6 2026-10-02
aos 2.3.1 2026-10-02
@blotoutio/providers-blotout-consent-sdk 1.73.0 2026-10-02
cloudinary-video-player 4.1.2 2026-10-02
dashjs 5.2.1 2026-10-02
@marimo-team/frontend 0.25.0 2026-10-02
facebook-pixel 2026-10-02
recaptcha 2026-10-02
@reachfive/identity-core 1.42.0 2026-10-02
@reachfive/identity-ui 2.1.0 2026-10-02
jspdf 4.2.1 2026-10-02
vuex 3.5.1 2026-10-02
jquery-ui-dist 1.13.3 2026-10-02
cloudflare-insights 2026-10-02
cloudflare-email-decode 2026-10-02
vimeo-player 2026-10-02
linkedin-insight 2026-10-02
hubspot 2026-10-02
ableplayer 5.0.0 2026-10-02
vue3-sfc-loader 0.9.5 2026-10-02
@vitest/utils 5.0.2 2026-10-02
@recogito/annotorious 2.7.14 2026-10-02
@bikematrix/web-components 1.3.23 2026-10-02
sharect 2.0.0 2026-10-02
wsemi 1.9.4 2026-10-02
@ant-design/x 2.9.0 2026-10-02
@inkeep/agents-ui-js-cloud 0.17.8 2026-10-02
@joyfill/components 4.0.0-rc26 2026-10-02
@wix/image 1.454.0 2026-10-02
dompurify 3.2.6 2026-09-24
@undp/design-system-assets 2.0.2 2026-09-24
swagger-ui-dist 5.33.0 2026-09-24
@cognigy/webchat 3.50.0 2026-09-24
@brainfish-ai/nudge-widget 0.1.3 2026-09-24
spectorjs 0.9.33 2026-09-24
@moveo-ai/web-client 0.117.0 2026-09-24
latex.js 0.12.6 2026-09-24

Tracking, tag and verification IDs

Public identifiers read out of the source. Each links to every other site in the index that carries the same one.

WhatValueFound in
Cloudflare Web Analytics token (Cloudflare) 9f8ca697d69e466db5367f2e3ddbcf34 view source
Meta pixel id (Meta) 1773480989373522 view source
Google site verification (Google) 2jKG0KcQdZeV-AvvRxS6e4SpbOkV80L6U0tHPQU7wnk view source
Google site verification (Google) pfA54SDB6itrRjdXaMlfdEZ9KJCW4IgE-0zw6qEUB54 view source
Google Tag Manager container (Google) GTM-TB8N6K3 view source
HubSpot portal id (HubSpot) 5523939 view source
LinkedIn Insight Tag partner id (LinkedIn) 3820924 view source
reCAPTCHA site key (Google) 6Lc5244aAAAAAL_tU5i7MxEC3ywoNqKKl3Iut20e view source

Third-party hosts

Hosts outside impactalpha.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
buy.tinypass.com connect view source
cdn.jsdelivr.net script view source
cdn.tinypass.com connect view source
cdnjs.cloudflare.com script stylesheet view source
connect.facebook.net connect view source
experience.tinypass.com connect view source
github.com connect view source
go.elementor.com connect view source
img.youtube.com connect view source
js.hs-scripts.com connect view source
player.vimeo.com connect view source
react.dev connect view source
sandbox.tinypass.com connect view source
snap.licdn.com connect view source
stackpath.bootstrapcdn.com script view source
tools.luckyorange.com connect view source
unpkg.com script stylesheet view source
vimeo.com connect view source
www.google.com script view source
www.googletagmanager.com iframe connect view source
www.w3.org connect view source
www.youtube-nocookie.com connect view source
www.youtube.com connect view source

Stored pages and scripts

The newest stored version of each file, newest first@if (p.FilesTruncated) { (the 500 newest of 138) }. 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://cdn.jsdelivr.net/npm/[email protected]/dist/umd/popper.min.js js library not fetched 2026-10-02 current
https://cdnjs.cloudflare.com/ajax/libs/jquery/3.7.1/jquery.min.js?ver=3.7.1 js library not fetched 2026-10-02 current
https://cdnjs.cloudflare.com/ajax/libs/vue/2.6.11/vue.min.js js library not fetched 2026-10-02 current
https://connect.facebook.net/en_US/fbevents.js js library not fetched 2026-10-02 current
https://js.hs-scripts.com/5523939.js js library not fetched 2026-10-02 current
https://player.vimeo.com/api/player.js js library not fetched 2026-10-02 current
https://snap.licdn.com/li.lms-analytics/insight.min.js js library not fetched 2026-10-02 current
https://stackpath.bootstrapcdn.com/bootstrap/5.0.0-alpha1/js/bootstrap.min.js js library not fetched 2026-10-02 current
https://unpkg.com/[email protected]/dist/aos.js js library not fetched 2026-10-02 current
https://unpkg.com/[email protected]/dist/sharect.js js library not fetched 2026-10-02 current
https://unpkg.com/[email protected]/dist/vuex.js js library not fetched 2026-10-02 current
https://www.google.com/recaptcha/api.js?render=6…AAAAL_tU5i7MxEC3ywoNqKKl3Iut20e js library not fetched 2026-10-02 current
https://www.googletagmanager.com/gtm.js?id=GTM-TB8N6K3 js library not fetched 2026-10-02 current
https://impactalpha.com/wp-content/plugins/eleme…8e65c03029f91931d.bundle.min.js js 12.9 KB 2026-10-02 current
https://impactalpha.com/wp-content/plugins/eleme…99fd0b063a0032d53.bundle.min.js js 13.7 KB 2026-10-02 current
https://impactalpha.com/wp-content/plugins/eleme…36e8b0bacbac6105e.bundle.min.js js 14.2 KB 2026-10-02 current
https://impactalpha.com/wp-content/plugins/eleme…f733dc3d3b250fef4.bundle.min.js js 7.7 KB 2026-10-02 current
https://impactalpha.com/wp-content/plugins/eleme…987d66bcc2ade0ee6.bundle.min.js js 13.5 KB 2026-10-02 current
https://impactalpha.com/wp-content/plugins/eleme…463f629e2b7cbaf02.bundle.min.js js 6.7 KB 2026-10-02 current
https://impactalpha.com/wp-content/plugins/eleme…526f3e4a201b5fce1.bundle.min.js js 7.4 KB 2026-10-02 current
https://impactalpha.com/wp-content/plugins/eleme…97a097fdc5532ef4a.bundle.min.js js 3.3 KB 2026-10-02 current
https://impactalpha.com/wp-content/plugins/eleme…62773c21105d2c65c.bundle.min.js js 7.5 KB 2026-10-02 current
https://impactalpha.com/wp-content/plugins/eleme…e081cebe071d683e8.bundle.min.js js 1.1 KB 2026-10-02 current
https://impactalpha.com/wp-content/plugins/eleme…93824ddb3f5531ab4.bundle.min.js js 27.6 KB 2026-10-02 current
https://impactalpha.com/wp-content/plugins/eleme…0b5f4906bcda1dcc2.bundle.min.js js 2.7 KB 2026-10-02 current
https://impactalpha.com/wp-content/plugins/eleme…a95b2e4dd2a239b81.bundle.min.js js 1.3 KB 2026-10-02 current
https://impactalpha.com/wp-content/plugins/eleme…c81d2188312a17a17.bundle.min.js js 8.8 KB 2026-10-02 current
https://impactalpha.com/wp-content/plugins/eleme…f5d5e404511d68720.bundle.min.js js 3.4 KB 2026-10-02 current
https://impactalpha.com/wp-content/plugins/eleme…9132bbbd683277a27.bundle.min.js js 1.8 KB 2026-10-02 current
https://impactalpha.com/wp-content/plugins/eleme…826f355f9822b0ec0.bundle.min.js js 6.1 KB 2026-10-02 current
https://impactalpha.com/wp-content/plugins/eleme…d117b95956d1f28a5.bundle.min.js js 5.1 KB 2026-10-02 current
https://impactalpha.com/wp-content/plugins/eleme…1f1f2aa99210fa1cf.bundle.min.js js 6.5 KB 2026-10-02 current
https://impactalpha.com/wp-content/plugins/eleme…2d8ca449739e34f9f.bundle.min.js js 3.4 KB 2026-10-02 current
https://impactalpha.com/wp-content/plugins/eleme…2e75f6769dce707e2.bundle.min.js js 4.6 KB 2026-10-02 current
https://impactalpha.com/wp-content/plugins/eleme…65999d77832a1b764.bundle.min.js js 2.1 KB 2026-10-02 current
https://impactalpha.com/wp-content/plugins/eleme…93245d08246e5e540.bundle.min.js js 7.9 KB 2026-10-02 current
https://impactalpha.com/wp-content/plugins/eleme…1ab725f562d10dd86.bundle.min.js js 8 KB 2026-10-02 current
https://impactalpha.com/wp-content/plugins/eleme…d263bd937f0906192.bundle.min.js js 1018 B 2026-10-02 current
https://impactalpha.com/wp-content/plugins/eleme…29640cbdb48199471.bundle.min.js js 3.8 KB 2026-10-02 current
https://impactalpha.com/wp-content/plugins/eleme…984f8c96d1e053bc0.bundle.min.js js 1.5 KB 2026-10-02 current
https://impactalpha.com/wp-content/plugins/eleme…5da34009c30cb5d70.bundle.min.js js 7.1 KB 2026-10-02 current
https://impactalpha.com/wp-content/plugins/eleme…59265318492b89cb5.bundle.min.js js 3.2 KB 2026-10-02 current
https://impactalpha.com/wp-content/plugins/eleme…6f464e573feab5dd7.bundle.min.js js 5.2 KB 2026-10-02 current
https://impactalpha.com/wp-content/plugins/eleme…15b2ca565b152bf98.bundle.min.js js 752 B 2026-10-02 current
https://impactalpha.com/wp-content/plugins/eleme…1a0597c50611efdc6.bundle.min.js js 5.1 KB 2026-10-02 current
https://impactalpha.com/wp-content/plugins/eleme…7ccfe024bea61e651.bundle.min.js js 14.1 KB 2026-10-02 current
https://impactalpha.com/wp-content/plugins/eleme…55747203b48a65a24.bundle.min.js js 19.3 KB 2026-10-02 current
https://impactalpha.com/wp-content/plugins/eleme…e1c07b9901f53d709.bundle.min.js js 5.8 KB 2026-10-02 current
https://impactalpha.com/wp-content/plugins/eleme…3ed75928eff79cb95.bundle.min.js js 2.8 KB 2026-10-02 current
https://impactalpha.com/wp-content/plugins/eleme…e688751d29d07a8d3.bundle.min.js js 2.6 KB 2026-10-02 current
https://impactalpha.com/wp-content/plugins/eleme…0fca501cb18163600.bundle.min.js js 4.9 KB 2026-10-02 current
https://impactalpha.com/wp-content/plugins/eleme…6e5df1a1527329fde.bundle.min.js js 6.8 KB 2026-10-02 current
https://impactalpha.com/wp-content/plugins/eleme…9d6fa482515df23f8.bundle.min.js js 7.6 KB 2026-10-02 current
https://impactalpha.com/wp-content/plugins/eleme…cdda9737c272489fc.bundle.min.js js 5.1 KB 2026-10-02 current
https://impactalpha.com/wp-content/plugins/eleme…30d6eecb5ebc8afbd.bundle.min.js js 2 KB 2026-10-02 current
https://impactalpha.com/wp-content/plugins/eleme…6b2d81686a5392236.bundle.min.js js 22.7 KB 2026-10-02 current
https://impactalpha.com/wp-content/plugins/eleme…64e46173f50701949.bundle.min.js js 871 B 2026-10-02 current
https://impactalpha.com/wp-content/plugins/eleme…c41acbc73cb741e9d.bundle.min.js js 22.1 KB 2026-10-02 current
https://impactalpha.com/wp-content/plugins/eleme…ddbc842a50347c9ab.bundle.min.js js 468 B 2026-10-02 current
https://impactalpha.com/wp-content/plugins/eleme…7d3cc630e11815acc.bundle.min.js js 4.2 KB 2026-10-02 current
https://impactalpha.com/wp-content/plugins/eleme…fedef32043348b99b.bundle.min.js js 1.7 KB 2026-10-02 current
https://impactalpha.com/wp-content/plugins/eleme…ab872da118940910d.bundle.min.js js 449 B 2026-10-02 current
https://impactalpha.com/wp-content/plugins/eleme…8e48d28c5544fb183.bundle.min.js js 9.4 KB 2026-10-02 current
https://impactalpha.com/wp-content/plugins/eleme…dcbed391abf4b48b0.bundle.min.js js 1.1 KB 2026-10-02 current
https://impactalpha.com/wp-content/plugins/eleme…aa53373b56d3bab67.bundle.min.js js 8.3 KB 2026-10-02 current
https://impactalpha.com/wp-content/plugins/eleme…d06d17cea5cebdb61.bundle.min.js js 7.7 KB 2026-10-02 current
https://impactalpha.com/wp-content/plugins/eleme…d0220ce8c38404e7e.bundle.min.js js 8.5 KB 2026-10-02 current
https://impactalpha.com/wp-content/plugins/eleme…d40984397351fd0f5.bundle.min.js js 9.5 KB 2026-10-02 current
https://impactalpha.com/wp-content/plugins/eleme…01356d329f179475e.bundle.min.js js 11.1 KB 2026-10-02 current
https://impactalpha.com/wp-content/plugins/eleme…24cb6e5dc9de86abd.bundle.min.js js 326 B 2026-10-02 current
https://impactalpha.com/wp-content/plugins/eleme…09661e409413f1cef.bundle.min.js js 1.3 KB 2026-10-02 current
https://impactalpha.com/wp-content/plugins/eleme…7d20b95b33386757b.bundle.min.js js 408 B 2026-10-02 current
https://impactalpha.com/wp-content/plugins/eleme…44e46e43d0807e708.bundle.min.js js 3.1 KB 2026-10-02 current
https://impactalpha.com/wp-content/plugins/eleme…77a3ef4785d3dfbc5.bundle.min.js js 3.7 KB 2026-10-02 current
https://impactalpha.com/wp-content/plugins/eleme…44b05d8d1ea0702bc.bundle.min.js js 3.6 KB 2026-10-02 current
https://impactalpha.com/wp-content/plugins/eleme…35f45aaa79d244f24.bundle.min.js js 906 B 2026-10-02 current
https://impactalpha.com/wp-content/plugins/eleme…083b809812c0e3aa1.bundle.min.js js 789 B 2026-10-02 current
https://impactalpha.com/wp-content/plugins/eleme…c1d522ef5c60bf874.bundle.min.js js 618 B 2026-10-02 current
https://impactalpha.com/wp-content/plugins/eleme…db5058afeb74622f5.bundle.min.js js 3.7 KB 2026-10-02 current
https://impactalpha.com/wp-content/plugins/eleme…c1f3a78d208bc7e1b.bundle.min.js js 3.2 KB 2026-10-02 current
https://impactalpha.com/wp-content/plugins/eleme…c05c5a283cfb6b223.bundle.min.js js 28.5 KB 2026-10-02 current
https://impactalpha.com/wp-content/plugins/eleme…f2d183c19202777d6.bundle.min.js js 23.4 KB 2026-10-02 current
https://impactalpha.com/_next/static/_U_Jxr_TTomrN3mmQTilk/_ssgManifest.js js 80 B 2026-10-02 2026-10-02
https://impactalpha.com/_next/static/_U_Jxr_TTomrN3mmQTilk/_buildManifest.js js 219 B 2026-10-02 2026-10-02
https://impactalpha.com/wp-content/themes/impact…organizations.js?ver=1790594526 js 10.4 KB 2026-10-02 2026-10-02
https://impactalpha.com/wp-content/themes/impact…/js/single.js?ver=1776964910 js 2.2 KB 2026-10-02 2026-10-02
https://impactalpha.com/wp-content/plugins/eleme…ents-handlers.min.js?ver=3.35.1 js 43.2 KB 2026-10-02 current
https://impactalpha.com/wp-content/plugins/eleme…/js/frontend.min.js?ver=3.35.1 js 23.5 KB 2026-10-02 current
https://impactalpha.com/wp-includes/js/dist/i18n.min.js?ver=781d11515ad3d91786ec js 5.6 KB 2026-10-02 current
https://impactalpha.com/wp-includes/js/dist/hook…?ver=7496969728ca0f95732d js 4.9 KB 2026-10-02 current
https://impactalpha.com/wp-content/plugins/eleme…k-pro.runtime.min.js?ver=3.35.1 js library 6.1 KB 2026-10-02 current
https://impactalpha.com/wp-content/plugins/searc…/search-forms.min.js?ver=4.5.8 js 7.1 KB 2026-10-02 current
https://impactalpha.com/wp-content/plugins/compl…complianz.min.js?ver=1775555713 js 41 KB 2026-10-02 current
https://impactalpha.com/wp-content/plugins/eleme…/js/frontend.min.js?ver=3.35.6 js 31.2 KB 2026-10-02 current
https://impactalpha.com/wp-content/plugins/eleme…ntend-modules.min.js?ver=3.35.6 js 49.3 KB 2026-10-02 current
https://impactalpha.com/wp-includes/js/jquery/ui/core.min.js?ver=1.13.3 js library 21 KB 2026-10-02 current
https://impactalpha.com/wp-content/plugins/eleme…bpack.runtime.min.js?ver=3.35.6 js library 5.6 KB 2026-10-02 current
https://impactalpha.com/wp-content/themes/impact…/js/footer.js?ver=2.5.582 js 566 B 2026-10-02 current
https://impactalpha.com/wp-content/themes/impact…/assets/js/app.js?ver=2.5.582 js 17.4 KB 2026-10-02 2026-10-02
https://impactalpha.com/wp-content/themes/impact…/js/header.js?ver=2.5.582 js 2.6 KB 2026-10-02 current
https://impactalpha.com/wp-content/plugins/nelio…?ver=493f3fb005029d7ebf0b js 7.5 KB 2026-10-02 current
https://impactalpha.com/_next/static/chunks/0_k5kz-r4593u.js js 1.3 KB 2026-10-02 current
https://impactalpha.com/cdn-cgi/scripts/5c5dd728…/email-decode.min.js js 1.2 KB 2026-10-02 2026-10-02
https://impactalpha.com/_next/static/chunks/03~yq9q893hmn.js js 110 KB 2026-10-02 current
https://impactalpha.com/_next/static/chunks/0vlxba2opco39.js js 74 KB 2026-10-02 2026-10-02
https://impactalpha.com/_next/static/chunks/070i7fs.6wr0m.js js 8.5 KB 2026-10-02 2026-10-02
https://impactalpha.com/_next/static/chunks/14mqw74-9z_8-.js js 2.7 KB 2026-10-02 2026-10-02
https://impactalpha.com/_next/static/chunks/0j4sov9ewbnjk.js js 3.8 KB 2026-10-02 2026-10-02
https://impactalpha.com/_next/static/chunks/105.0s2_03bfh.js js 26.3 KB 2026-10-02 current
https://impactalpha.com/_next/static/chunks/0d3shmwh5_nmn.js js 53.4 KB 2026-10-02 current
https://impactalpha.com/_next/static/chunks/0s3spivy90y-d.js js 84.8 KB 2026-10-02 2026-10-02
https://impactalpha.com/_next/static/chunks/0mdx54xtz2y0u.js js 25.5 KB 2026-10-02 2026-10-02
https://impactalpha.com/_next/static/chunks/0d09dqc0icgf~.js js 27.4 KB 2026-10-02 2026-10-02
https://impactalpha.com/_next/static/chunks/turbopack-0ycj_-pb9di8k.js js 10.4 KB 2026-10-02 2026-10-02
https://impactalpha.com/_next/static/chunks/0mu1qslb0zv9i.js js 43.8 KB 2026-10-02 current
https://impactalpha.com/_next/static/chunks/0e~lenzs2gkan.js js 106.4 KB 2026-10-02 2026-10-02
https://impactalpha.com/_next/static/chunks/0u4afnj8613a7.js js 227 KB 2026-10-02 2026-10-02
https://impactalpha.com/_next/static/chunks/10qd__0r7a~.l.js js 27.1 KB 2026-10-02 2026-10-02
https://impactalpha.com/_next/static/chunks/13a_830h9iv~z.js js 30.2 KB 2026-10-02 2026-10-02
https://impactalpha.com/subscribe/ html 151.8 KB 2026-10-02 2026-10-02
https://impactalpha.com/contact/ html 109.3 KB 2026-10-02 2026-10-02
https://impactalpha.com/what-a-traveling-greenho…aught-us-about-capital-systems/ html 137.6 KB 2026-10-02 2026-10-02
https://impactalpha.com/pricing-and-payment/ html 111.8 KB 2026-10-02 2026-10-02
https://impactalpha.com/ html 458.5 KB 2026-10-02 2026-10-02
https://impactalpha.com/_next/static/MUGL6sRnd0apibnfkLiS7/_ssgManifest.js js 80 B 2026-09-24 current
https://impactalpha.com/_next/static/MUGL6sRnd0apibnfkLiS7/_buildManifest.js js 219 B 2026-09-24 current
https://impactalpha.com/_next/static/chunks/110lz1xwgjpbc.js js 73.7 KB 2026-09-24 current
https://impactalpha.com/_next/static/chunks/0or_q9ccczymy.js js 8.5 KB 2026-09-24 current
https://impactalpha.com/_next/static/chunks/038f~0g.~arhn.js js 2.7 KB 2026-09-24 current
https://impactalpha.com/_next/static/chunks/0n270biycq._~.js js 3.4 KB 2026-09-24 current
https://impactalpha.com/_next/static/chunks/0o2ntaj7qmrsr.js js 84.2 KB 2026-09-24 current
https://impactalpha.com/_next/static/chunks/0gvry623ry24n.js js 27.8 KB 2026-09-24 current
https://impactalpha.com/_next/static/chunks/0.11sr3gnn17h.js js 24.9 KB 2026-09-24 current
https://impactalpha.com/_next/static/chunks/turbopack-0~uo~k03g8m2t.js js 10.4 KB 2026-09-24 current
https://impactalpha.com/_next/static/chunks/0zb1rtrax19ed.js js 133.4 KB 2026-09-24 current
https://impactalpha.com/_next/static/chunks/0q5j--fpdy7vu.js js 227 KB 2026-09-24 current
https://impactalpha.com/_next/static/chunks/16.47gzvhrnuy.js js 30.2 KB 2026-09-24 current
https://impactalpha.com/about/ html 170.9 KB 2026-09-24 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, 124 files, 2.5 MB; 35 libraries, 8 identifiers, 23 third-party hosts

    35 libraries added
    • cloudflare-email-decode
    • @vitest/utils 5.0.2
    • gtm
    • facebook-pixel
    • recaptcha
    • cloudflare-insights
    • @inkeep/agents-ui-js-cloud 0.17.8
    • @clerk/ui 1.34.0
    • @ant-design/x 2.9.0
    • @joyfill/components 4.0.0-rc26
    • @marimo-team/frontend 0.25.0
    • @blotoutio/providers-blotout-consent-sdk 1.73.0
    • and 23 more
    8 identifiers added
    26 third-party hosts added
    124 files added

Questions about impactalpha.com

How does PageSourceSearch know what impactalpha.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 impactalpha.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 impactalpha.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 impactalpha.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.