How does PageSourceSearch know what superthread.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 superthread.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 superthread.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 superthread.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.

Site profile

superthread.com

Built with @finsweet/attributes 2.7.1, mealz-components 3.2.8, dompurify 3.4.16, echarts 6.1.0, gather-vue 8.20.3, @n8n/chat 1.39.2, rrweb 2.1.6, @highlightjs/cdn-assets 11.12.0, @marimo-team/frontend 0.25.0, vue-router 5.3.1, @feathery/react 2.96.0, @veltdev/sdk 6.0.15 and more. 5 pages and 147 stored files, last crawled 2026-10-03.

rank 1,954,089 42 libraries 0 identifiers 33 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.

Library	Version	Seen
@finsweet/attributes	2.7.1	2026-10-03
mealz-components	3.2.8	2026-10-03
dompurify	3.4.16	2026-10-03
echarts	6.1.0	2026-10-03
gather-vue	8.20.3	2026-10-03
@n8n/chat	1.39.2	2026-10-03
rrweb	2.1.6	2026-10-03
@highlightjs/cdn-assets	11.12.0	2026-10-03
@marimo-team/frontend	0.25.0	2026-10-03
vue-router	5.3.1	2026-10-03
@feathery/react	2.96.0	2026-10-03
@veltdev/sdk	6.0.15	2026-10-03
rrweb-player	2.1.6	2026-10-03
reveal.js	6.0.2	2026-10-03
cloudflare-email-decode		2026-10-03
@mermaid-js/layout-elk	1.0.0	2026-10-03
@scalar/api-reference	1.71.0	2026-10-03
@meowwolf/meowwolf-main	1.5.2	2026-10-03
@tryghost/portal	2.71.207	2026-10-03
mirador	4.2.4	2026-10-03
@waline/client	3.15.2	2026-10-03
volantis-static	0.0.1761982841160	2026-10-03
@animaj/pocoyo	0.2.34	2026-10-03
nimbbl_sonic	6.3.2	2026-10-03
@illumio/landing	0.4.14	2026-10-03
@konnectio/core	4.8.8	2026-10-03
emoji-mart-vue	2.6.6	2026-10-03
@devframes/hub-ui	1.0.0	2026-10-03
@feedmepos/ui-library	1.10.17	2026-10-03
altair-static	8.5.9	2026-10-03
@gradio/lite	5.45.0	2026-10-03
@perceptimagery/sprie-widget	1.3.3015	2026-10-03
@zappway/embeds	2.0.28	2026-10-03
@tagadapay/plugin-sdk	4.3.0	2026-10-03
@itk-wasm/dicom	7.6.4	2026-10-03
@pydantic/ai-chat-ui	2.3.0	2026-10-03
ramp-pcar	4.22.1	2026-10-03
naive-ui	2.45.3	2026-09-25
vditor	4.0.0	2026-09-25
node-ray	3.0.0	2026-09-25
ai-chatbot-widget	0.1.6	2026-09-25
@twinalyze/web-analytics	1.0.26	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 superthread.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.

Host	Loaded as	Found in
accounts.google.com	connect	view source
api-sr.amplitude.com	connect	view source
api-sr.eu.amplitude.com	connect	view source
api-sr.stag2.amplitude.com	connect	view source
api.eu.amplitude.com	connect	view source
api.superthread.dev	connect	view source
api.vimeo.com	connect	view source
api2.amplitude.com	connect	view source
app.amplitude.com	connect	view source
app.eu.amplitude.com	connect	view source
app.shortcut.com	connect	view source
app.superthread.dev	connect	view source
apps.stag2.amplitude.com	connect	view source
cdn.amplitude.com	connect	view source
cdn.segment.com	connect	view source
collaboration.superthread.dev	connect	view source
corsproxy.superthread.workers.dev	connect	view source
diagnostics.prod.eu-central-1.amplitude.com	connect	view source
diagnostics.prod.us-west-2.amplitude.com	connect	view source
github.com	connect	view source
id.atlassian.com	connect	view source
images-unsplash-download.superthread.workers.dev	connect	view source
images-unsplash.superthread.workers.dev	connect	view source
lh3.googleusercontent.com	connect	view source
next.vuex.vuejs.org	connect	view source
sanitizer.invalid	connect	view source
sr-client-cfg.amplitude.com	connect	view source
sr-client-cfg.eu.amplitude.com	connect	view source
v3-migration.vuejs.org	connect	view source
vuejs.org	connect	view source
www.googleapis.com	connect	view source
www.w3.org	connect	view source
zapier.com	connect	view source

Stored pages and scripts

The newest stored version of each file, newest first@if (p.FilesTruncated) { (the 500 newest of 147) }. 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.

File	Kind	Size	Collected	Versions
https://app.superthread.com/service-worker.js	js	96.4 KB	2026-10-03	2026-10-03
https://app.superthread.com/assets/truncateString-CGFUXS-H.js	js	485 B	2026-10-03	2026-10-03
https://app.superthread.com/assets/sessionIntent-B4L2hYv6.js	js	962 B	2026-10-03	2026-10-03
https://app.superthread.com/assets/segment-BZoVDnDv.js	js	1.1 KB	2026-10-03	2026-10-03
https://app.superthread.com/assets/rootStyles-OY26zAg0.js	js	2 KB	2026-10-03	2026-10-03
https://app.superthread.com/assets/loadWorkspaceSettings-IQaj1nwg.js	js	866 B	2026-10-03	2026-10-03
https://app.superthread.com/assets/isFullyLoaded-CzK18BU3.js	js	867 B	2026-10-03	2026-10-03
https://app.superthread.com/assets/isTrustedExternalUrl-CU5sWZiN.js	js	742 B	2026-10-03	2026-10-03
https://app.superthread.com/assets/getTextToTitleCase-DQGAOHS_.js	js	529 B	2026-10-03	2026-10-03
https://app.superthread.com/assets/getMemberLabel-Cpps57JG.js	js	627 B	2026-10-03	2026-10-03
https://app.superthread.com/assets/generateSrcUrl-DbYbvaUM.js	js	1.5 KB	2026-10-03	2026-10-03
https://app.superthread.com/assets/useToggleGoSquaredChatButton-D9w_4x47.js	js	985 B	2026-10-03	2026-10-03
https://app.superthread.com/assets/useOnboardingActions-V11aVreV.js	js	7.8 KB	2026-10-03	2026-10-03
https://app.superthread.com/assets/useOnboardingCue-Cl_UlHfK.js	js	1.8 KB	2026-10-03	2026-10-03
https://app.superthread.com/assets/useAudioTranscription-kF7V8chE.js	js	7 KB	2026-10-03	2026-10-03
https://app.superthread.com/assets/useSilenceCountdown-qc_0RkCQ.js	js	1002 B	2026-10-03	2026-10-03
https://app.superthread.com/assets/usePlatform-BEUf7WuC.js	js	604 B	2026-10-03	2026-10-03
https://app.superthread.com/assets/useAddCardsToInEpicBoard-DhIumKMS.js	js	1.2 KB	2026-10-03	2026-10-03
https://app.superthread.com/assets/agentCalendar-D8jWeSBX.js	js	7 KB	2026-10-03	2026-10-03
https://app.superthread.com/assets/getDashedTitle-CONKHuUf.js	js	591 B	2026-10-03	2026-10-03
https://app.superthread.com/assets/validateEmail-Cqp8-8xS.js	js	608 B	2026-10-03	2026-10-03
https://app.superthread.com/assets/getIntegrationRedirectUri-CnSInFZn.js	js	673 B	2026-10-03	2026-10-03
https://app.superthread.com/assets/useIsElectronApp-DRAp4NLh.js	js	561 B	2026-10-03	2026-10-03
https://app.superthread.com/assets/isElectronApp-0sZ7xxHT.js	js	510 B	2026-10-03	2026-10-03
https://app.superthread.com/assets/sidebar-DRXi9tlF.js	js	686 B	2026-10-03	2026-10-03
https://app.superthread.com/assets/store-CvcE3t23.js	js	99.5 KB	2026-10-03	2026-10-03
https://app.superthread.com/assets/workspace-50B1p31O.js	js	5.1 KB	2026-10-03	2026-10-03
https://app.superthread.com/assets/realtime-CntGFTzA.js	js	1.2 KB	2026-10-03	2026-10-03
https://app.superthread.com/assets/timeTracking-DBfxiN0p.js	js	16.5 KB	2026-10-03	2026-10-03
https://app.superthread.com/assets/timeTrackingDuration-DzSeXw3b.js	js	1.2 KB	2026-10-03	2026-10-03
https://app.superthread.com/assets/notes-CoWeTOwP.js	js	11.5 KB	2026-10-03	2026-10-03
https://app.superthread.com/assets/notes-BMdmBlgM.js	js	1.1 KB	2026-10-03	2026-10-03
https://app.superthread.com/assets/integrations-DzKL_9SW.js	js	4.2 KB	2026-10-03	2026-10-03
https://app.superthread.com/assets/attachmentPreview-BRwYgU6q.js	js	2.3 KB	2026-10-03	2026-10-03
https://app.superthread.com/assets/attachmentPreviewable-CBI_zsaa.js	js	619 B	2026-10-03	2026-10-03
https://app.superthread.com/assets/useAuthSession-ewfCmy8R.js	js	827 B	2026-10-03	2026-10-03
https://app.superthread.com/assets/planData-khy3FfO1.js	js	2.3 KB	2026-10-03	2026-10-03
https://app.superthread.com/assets/StCheckbox-C-opH1rw.js	js	1.7 KB	2026-10-03	2026-10-03
https://app.superthread.com/assets/LoadingSpinner-vP5rctsm.js	js	782 B	2026-10-03	2026-10-03
https://app.superthread.com/assets/ButtonCustom-qOiOKbIZ.js	js	3.1 KB	2026-10-03	2026-10-03
https://app.superthread.com/assets/cards-DAcUUvi5.js	js	263.1 KB	2026-10-03	2026-10-03
https://app.superthread.com/assets/useCustomIcon-DaarwBgq.js	js	606 B	2026-10-03	2026-10-03
https://app.superthread.com/assets/isMobile-pDJ7DYbc.js	js	532 B	2026-10-03	2026-10-03
https://app.superthread.com/assets/useCoverImage-C4ddzlS2.js	js	5.4 KB	2026-10-03	2026-10-03
https://app.superthread.com/assets/dist-BK3xDNEW.js	js	1.2 KB	2026-10-03	2026-10-03
https://app.superthread.com/assets/useViewOnlySpace-DswlKI7p.js	js	1.9 KB	2026-10-03	2026-10-03
https://app.superthread.com/assets/useTranslate-BGfxtiey.js	js	648 B	2026-10-03	2026-10-03
https://app.superthread.com/assets/useCurrentRole-0KLWfNUU.js	js	1.1 KB	2026-10-03	2026-10-03
https://app.superthread.com/assets/useUrlHelpers-C8hpjjjz.js	js	1 KB	2026-10-03	2026-10-03
https://app.superthread.com/assets/agents-TXkSOrR7.js	js	2.4 KB	2026-10-03	2026-10-03
https://app.superthread.com/assets/iconTypes-C7oi6FLf.js	js	508 B	2026-10-03	2026-10-03
https://app.superthread.com/assets/resources-CmVU5Bq6.js	js	1.3 KB	2026-10-03	2026-10-03
https://app.superthread.com/assets/defaultCardStatuses-DaofpE87.js	js	2.4 KB	2026-10-03	2026-10-03
https://app.superthread.com/assets/ui-Mk_UJDv3.js	js	12.7 KB	2026-10-03	2026-10-03
https://app.superthread.com/assets/onboarding-Cce9LIdV.js	js	7.6 KB	2026-10-03	2026-10-03
https://app.superthread.com/assets/notifications-BjlvqxB5.js	js	5 KB	2026-10-03	2026-10-03
https://app.superthread.com/assets/electron-BrZI3okJ.js	js	2.5 KB	2026-10-03	2026-10-03
https://app.superthread.com/assets/files-W83qAE5V.js	js	3.8 KB	2026-10-03	2026-10-03
https://app.superthread.com/assets/session-DzRDlufr.js	js	11.6 KB	2026-10-03	2026-10-03
https://app.superthread.com/assets/constants-CLJ-Zvoc.js	js	17.6 KB	2026-10-03	2026-10-03
https://app.superthread.com/assets/api-CicMvTNa.js	js	2.3 KB	2026-10-03	2026-10-03
https://app.superthread.com/assets/publicBoard-JdNRoVPm.js	js	1.6 KB	2026-10-03	2026-10-03
https://app.superthread.com/assets/eventBus-Cv8czy1M.js	js	668 B	2026-10-03	2026-10-03
https://app.superthread.com/assets/onboardingActions-BOvDMXdT.js	js	4.1 KB	2026-10-03	2026-10-03
https://app.superthread.com/assets/legacy-BXq41Cc1.js	js	568 B	2026-10-03	2026-10-03
https://app.superthread.com/assets/variables.module-6PYhP0DZ.js	js	3.4 KB	2026-10-03	2026-10-03
https://app.superthread.com/assets/small-logo-light-BHAWL2pK.js	js	495 B	2026-10-03	2026-10-03
https://app.superthread.com/assets/iconLoader-CEgVaVXH.js	js	289.3 KB	2026-10-03	2026-10-03
https://app.superthread.com/assets/vendor-i18n-wTZJ5fvz.js	js	44.1 KB	2026-10-03	2026-10-03
https://app.superthread.com/assets/vendor-vueuse-WG1m1Zd8.js	js	9.6 KB	2026-10-03	2026-10-03
https://app.superthread.com/assets/vendor-ui-zcPWy5sc.js	js	317.6 KB	2026-10-03	2026-10-03
https://app.superthread.com/assets/vendor-vue-CPFZhXo9.js	js	36 KB	2026-10-03	2026-10-03
https://app.superthread.com/assets/vendor-analytics-BLYsxL1t.js	js	667.9 KB	2026-10-03	2026-10-03
https://app.superthread.com/assets/vendor-content-CQ5sEY46.js	js	925.6 KB	2026-10-03	2026-10-03
https://app.superthread.com/assets/vendor-BptJrGwX.js	js	1.3 MB	2026-10-03	2026-10-03
https://app.superthread.com/assets/rolldown-runtime-CHaGdZdU.js	js	1.2 KB	2026-10-03	2026-10-03
https://app.superthread.com/cdn-cgi/scripts/5c5d…/email-decode.min.js	js	1.2 KB	2026-10-03	current
https://app.superthread.com/registerSW.js	js	146 B	2026-10-03	current
https://app.superthread.com/assets/index-a_4v9d8I.js	js	444.9 KB	2026-10-03	2026-10-03
https://superthread.com/_astro/InlinePillLink.as…script_index_0_lang.C1nm6RRv.js	js	52 B	2026-10-03	current
https://superthread.com/_astro/AnnouncementPill.…script_index_0_lang.C1nm6RRv.js	js	52 B	2026-10-03	current
https://superthread.com/pricing/	html	238 KB	2026-10-03	current
https://superthread.com/blog/	html	165.8 KB	2026-10-03	current
https://app.superthread.com/login	html	18.5 KB	2026-10-03	2026-10-03
https://superthread.com/solutions/product-engineering/	html	169.6 KB	2026-10-03	current
https://superthread.com/	html	347.8 KB	2026-10-03	current
https://app.superthread.com/assets/dist-BHQ5gEJS.js	js	1.2 KB	2026-09-25	current
https://app.superthread.com/assets/truncateString-Cq8cFhFI.js	js	485 B	2026-09-25	current
https://app.superthread.com/assets/timeTrackingDuration-CKUISXYy.js	js	1.2 KB	2026-09-25	current
https://app.superthread.com/assets/timeDifference-CF1XEeEn.js	js	2.5 KB	2026-09-25	current
https://app.superthread.com/assets/sprintKeys-CW9VGets.js	js	505 B	2026-09-25	current
https://app.superthread.com/assets/sessionIntent-DU3hxndt.js	js	962 B	2026-09-25	current
https://app.superthread.com/assets/segment-K0Mi_yJ6.js	js	1.1 KB	2026-09-25	current
https://app.superthread.com/assets/rootStyles-BlYbkhfN.js	js	2 KB	2026-09-25	current
https://app.superthread.com/assets/isTrustedExternalUrl-BXnw1Vzu.js	js	742 B	2026-09-25	current
https://app.superthread.com/assets/isMobile-7tsGUMuw.js	js	532 B	2026-09-25	current
https://app.superthread.com/assets/isFullyLoaded-ClMpl5m-.js	js	867 B	2026-09-25	current
https://app.superthread.com/assets/utilities-Br2OENms.js	js	622 B	2026-09-25	current
https://app.superthread.com/assets/getTextToTitleCase-DmqFtevK.js	js	529 B	2026-09-25	current
https://app.superthread.com/assets/getMemberLabel-Dz5BKu-O.js	js	627 B	2026-09-25	current
https://app.superthread.com/assets/generateSrcUrl-Dw3icuMU.js	js	1.5 KB	2026-09-25	current
https://app.superthread.com/assets/useViewOnlySpace-D1nx2HSy.js	js	1.9 KB	2026-09-25	current
https://app.superthread.com/assets/useToggleGoSquaredChatButton-Bdr7xWzh.js	js	985 B	2026-09-25	current
https://app.superthread.com/assets/useOnboardingCue-D63PVdAV.js	js	1.8 KB	2026-09-25	current
https://app.superthread.com/assets/useOnboardingActions-CK8Hq1AW.js	js	7.7 KB	2026-09-25	current
https://app.superthread.com/assets/useCurrentRole-BuKGLoHv.js	js	1.1 KB	2026-09-25	current
https://app.superthread.com/assets/useAudioTranscription-CzfWOxZr.js	js	7.1 KB	2026-09-25	current
https://app.superthread.com/assets/useTranslate-LfCF7-9D.js	js	594 B	2026-09-25	current
https://app.superthread.com/assets/isPublicPageApp-BVI5ejJ3.js	js	522 B	2026-09-25	current
https://app.superthread.com/assets/useSilenceCountdown-CLHTShoG.js	js	1002 B	2026-09-25	current
https://app.superthread.com/assets/usePlatform-BbjPrjmo.js	js	604 B	2026-09-25	current
https://app.superthread.com/assets/useIsElectronApp-B7Be4rFO.js	js	561 B	2026-09-25	current
https://app.superthread.com/assets/isElectronApp-Cnu7od_Z.js	js	510 B	2026-09-25	current
https://app.superthread.com/assets/useAddCardsToInEpicBoard-sCwCfvLw.js	js	1.2 KB	2026-09-25	current
https://app.superthread.com/assets/getDashedTitle-CVOG8szS.js	js	591 B	2026-09-25	current
https://app.superthread.com/assets/constants-CZv0jBkA.js	js	17.5 KB	2026-09-25	current
https://app.superthread.com/assets/browser-storage.util-Bo1-pZ67.js	js	1 KB	2026-09-25	current
https://app.superthread.com/assets/api-CyK4si2d.js	js	1.6 KB	2026-09-25	current
https://app.superthread.com/assets/agents-CMTgn_SN.js	js	2.4 KB	2026-09-25	current
https://app.superthread.com/assets/sidebar-BrYichhu.js	js	686 B	2026-09-25	current
https://app.superthread.com/assets/resources-DJg8o_rJ.js	js	1.3 KB	2026-09-25	current
https://app.superthread.com/assets/onboardingActions-Bl_o9Sma.js	js	4.1 KB	2026-09-25	current
https://app.superthread.com/assets/notes-DGgHKNKD.js	js	1.1 KB	2026-09-25	current
https://app.superthread.com/assets/modal-ChWE9B-P.js	js	907 B	2026-09-25	current
https://app.superthread.com/assets/useUrlHelpers-zJ-R9Kq2.js	js	1 KB	2026-09-25	current
https://app.superthread.com/assets/publicBoard-DZjOl3FB.js	js	1.6 KB	2026-09-25	current
https://app.superthread.com/assets/iconTypes-BDk2FZ8S.js	js	508 B	2026-09-25	current
https://app.superthread.com/assets/defaultCardStatuses-DO9wQpmm.js	js	2.4 KB	2026-09-25	current
https://app.superthread.com/assets/useAuthSession-BiS8PYa8.js	js	827 B	2026-09-25	current
https://app.superthread.com/assets/eventBus-DIeiQBPo.js	js	668 B	2026-09-25	current
https://app.superthread.com/assets/planData-L4DbXzdV.js	js	2.3 KB	2026-09-25	current
https://app.superthread.com/assets/StCheckbox-CrZ_ZJS-.js	js	1.7 KB	2026-09-25	current
https://app.superthread.com/assets/LoadingSpinner-DjzX9yx2.js	js	782 B	2026-09-25	current
https://app.superthread.com/assets/ButtonCustom-Chj3CFFw.js	js	3.1 KB	2026-09-25	current
https://app.superthread.com/assets/useCustomIcon-DjETsIu4.js	js	606 B	2026-09-25	current
https://app.superthread.com/assets/variables.module-DjTz50Ku.js	js	3.4 KB	2026-09-25	current
https://app.superthread.com/assets/small-logo-light-CX1IPN0S.js	js	495 B	2026-09-25	current
https://app.superthread.com/assets/iconLoader-C5SyVrlO.js	js	289.3 KB	2026-09-25	current
https://app.superthread.com/assets/vendor-i18n-bTsm6uyV.js	js	44.1 KB	2026-09-25	current
https://app.superthread.com/assets/vendor-vueuse-UcZ2GzdC.js	js	9.6 KB	2026-09-25	current
https://app.superthread.com/assets/vendor-vue-hxLzPQb4.js	js	36 KB	2026-09-25	current
https://app.superthread.com/assets/vendor-ui-7so77X27.js	js	317.6 KB	2026-09-25	current
https://app.superthread.com/assets/vendor-analytics-CSX8XwLj.js	js	667.9 KB	2026-09-25	current
https://app.superthread.com/assets/vendor-content-Bwos_WNf.js	js	925.6 KB	2026-09-25	current
https://app.superthread.com/assets/vendor-z_2pnSBH.js	js	1.2 MB	2026-09-25	current
https://app.superthread.com/assets/rolldown-runtime-C1tghyfw.js	js	1.2 KB	2026-09-25	current
https://app.superthread.com/assets/index-CqA729ie.js	js	812.3 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.

2026-10-03 first crawl

5 pages, 86 files, 5.5 MB; 37 libraries, 0 identifiers, 33 third-party hosts
37 libraries added
- cloudflare-email-decode
- @waline/client 3.15.2
- @n8n/chat 1.39.2
- nimbbl_sonic 6.3.2
- @tagadapay/plugin-sdk 4.3.0
- @itk-wasm/dicom 7.6.4
- altair-static 8.5.9
- mirador 4.2.4
- @perceptimagery/sprie-widget 1.3.3015
- @tryghost/portal 2.71.207
- dompurify 3.4.16
- @marimo-team/frontend 0.25.0
- and 25 more
33 third-party hosts added
86 files added

Questions about superthread.com

How does PageSourceSearch know what superthread.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 superthread.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 superthread.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 superthread.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.