How does PageSourceSearch know what teacherin.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 teacherin.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 teacherin.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 teacherin.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

teacherin.com

Built with hls.js 1.7.3, webpack, @wix/design-system 1.328.0, clappr 0.3.13, gather-vue 8.20.3, @n8n/chat 1.39.2, scandit-sdk 5.15.0, cloudinary-core 2.14.1, @armdborg/hls.js 1.7.2, eventemitter3, url-toolkit, webworkify-webpack and more. 1 page and 164 stored files, last crawled 2026-10-08.

rank 14,258,275 38 libraries 3 identifiers 83 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
hls.js	1.7.3	2026-10-08
webpack		2026-10-08
@wix/design-system	1.328.0	2026-10-08
clappr	0.3.13	2026-10-08
gather-vue	8.20.3	2026-10-08
@n8n/chat	1.39.2	2026-10-08
scandit-sdk	5.15.0	2026-10-08
cloudinary-core	2.14.1	2026-10-08
@armdborg/hls.js	1.7.2	2026-10-08
eventemitter3		2026-10-08
url-toolkit		2026-10-08
webworkify-webpack		2026-10-08
@commonlit/commonlit-frontend	0.1.0	2026-10-08
easyqrcodejs	4.6.2	2026-10-08
lodash.debounce		2026-10-08
@meowwolf/meowwolf-main	1.5.2	2026-10-08
@feedmepos/mf-report	5.29.2	2026-10-08
@stlite/mountable	0.75.0	2026-10-08
@flatfile/javascript	1.5.7	2026-10-08
@orbitellabs/chatbot-sdk	2.0.5	2026-10-08
vditor	4.0.0	2026-10-08
aes-js	3.1.2	2026-10-08
@feedmepos/mf-menu	0.32.80-alpha.2	2026-10-08
@feedmepos/mf-inventory-portal	1.7.17	2026-10-08
excellentexport	3.9.16	2026-10-08
@churchsuite/embed	5.3.2	2026-10-08
@cloudflare/realtimekit	2.0.2	2026-10-08
@perceptimagery/dita-configurator	1.3.24	2026-10-08
playable	2.15.4	2026-10-08
@maptiler/geocoding-control	3.0.0	2026-10-08
@myparcel/delivery-options	6.22.0	2026-10-08
@launchdarkly/observability	1.1.23	2026-10-08
@feedmepos/ui-library	1.10.17	2026-10-08
@klinecharts/pro	0.1.1	2026-10-08
@genpact/genome.mfe.mgtwin-app	1.1.101	2026-10-08
@amcharts/amcharts5	5.20.8	2026-10-08
@mathjax/mathjax-asana-font	4.1.3	2026-10-08
amcharts3	3.21.15	2026-10-08

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.

What	Value	Found in
Intercom app id (Intercom)	teacherin	view source
Sentry DSN host (Sentry)	errmon.eeo.cn	view source
Sentry DSN host (Sentry)	errmon.eeo.im	view source

Third-party hosts

Hosts outside teacherin.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
api-demo.airwallex.com	connect	view source
api-staging.airwallex.com	connect	view source
api.airwallex.com	connect	view source
ark.xiaohongshu.com	connect	view source
beian.miit.gov.cn	connect	view source
checkout-demo.airwallex.com	connect	view source
checkout-staging.airwallex.com	connect	view source
checkout.airwallex.com	connect	view source
clipboardjs.com	connect	view source
console.eeo.cn	connect	view source
console.eeo.im	connect	view source
console13.eeo.im	connect	view source
console14.eeo.im	connect	view source
download.eeo.cn	connect	view source
download.eeo.im	connect	view source
download13.eeo.im	connect	view source
download14.eeo.im	connect	view source
dynamic-os.teacherin.vip	connect	view source
dynamic.teacherin.cn	connect	view source
dynamic.teacherin.vip	connect	view source
dynamic13.teacherin.vip	connect	view source
dynamic14.teacherin.vip	connect	view source
et.eeo.cn	connect	view source
example.com	connect	view source
flowin.cn	connect	view source
fuwu.jinritemai.com	connect	view source
fxg.jinritemai.com	connect	view source
manual.sensorsdata.cn	connect	view source
newbee.eeo.cn	connect	view source
newbee.eeo.im	connect	view source
newbee13.eeo.im	connect	view source
newbee14.eeo.im	connect	view source
purl.oclc.org	connect	view source
purl.org	connect	view source
qyapi.weixin.qq.com	connect	view source
schemas.microsoft.com	connect	view source
schemas.openxmlformats.org	connect	view source
sheetjs.openxmlformats.org	connect	view source
shop.classin.cn	connect	view source
shop.eeo.im	connect	view source
shop13.eeo.im	connect	view source
shop14.eeo.im	connect	view source
static-demo.airwallex.com	connect	view source
static-os.teacherin.vip	connect	view source
static-staging.airwallex.com	connect	view source
static.airwallex.com	connect	view source
static.eeo.cn	connect	view source
static.eeo.im	connect	view source
static.teacherin.cn	connect	view source
static.teacherin.vip	connect	view source
static13.eeo.im	connect	view source
static13.teacherin.vip	connect	view source
static14.eeo.im	connect	view source
static14.teacherin.vip	connect	view source
turing.captcha.qcloud.com	connect	view source
www-cc.coursein.cn	connect	view source
www-cc.coursein.vip	connect	view source
www-os.teacherin.vip	connect	view source
www-sg.coursein.vip	connect	view source
www.baidu.com	connect	view source
www.beian.gov.cn	connect	view source
www.classin.com	connect	view source
www.classin.vip	connect	view source
www.coursein.sg	connect	view source
www.eeo.cn	connect	view source
www.eeo.im	connect	view source
www.example.com	connect	view source
www.mathjax.org	connect	view source
www.sensorsdata.cn	connect	view source
www.teacherin.cn	connect	view source
www.teacherin.vip	connect	view source
www.w3.org	connect	view source
www13-cc.coursein.vip	connect	view source
www13-sg.coursein.vip	connect	view source
www13.classin.vip	connect	view source
www13.eeo.im	connect	view source
www13.teacherin.vip	connect	view source
www14-cc.coursein.vip	connect	view source
www14-sg.coursein.vip	connect	view source
www14.classin.vip	connect	view source
www14.eeo.im	connect	view source
www14.teacherin.vip	connect	view source
zhaoshang.xiaohongshu.com	connect	view source

Stored pages and scripts

The newest stored version of each file, newest first@if (p.FilesTruncated) { (the 500 newest of 164) }. 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://www.teacherin.com/static/js/Records-facb8500.js	js	10.1 KB	2026-10-08	current
https://www.teacherin.com/static/js/Recruit-62f5914c.js	js	1.7 KB	2026-10-08	current
https://www.teacherin.com/static/js/Identification-3fcf242c.js	js	15.7 KB	2026-10-08	current
https://www.teacherin.com/static/js/ThumbnailView-3b4335d9.js	js	5.8 KB	2026-10-08	current
https://www.teacherin.com/static/js/ListView-838c9cf0.js	js	5 KB	2026-10-08	current
https://www.teacherin.com/static/js/AddSellOrderModal-12dd89db.js	js	5.4 KB	2026-10-08	current
https://www.teacherin.com/static/js/PerOrgSelect-fe117bfd.js	js	1.3 KB	2026-10-08	current
https://www.teacherin.com/static/js/PaymentModal-2545e3ab.js	js	849 B	2026-10-08	current
https://www.teacherin.com/static/js/PaySuccessModal-9eea3b22.js	js	842 B	2026-10-08	current
https://www.teacherin.com/static/js/MobileOrderDetail-268e60c2.js	js	10.7 KB	2026-10-08	current
https://www.teacherin.com/static/js/PopularizeCenter-ae8712b1.js	js	7.8 KB	2026-10-08	current
https://www.teacherin.com/static/js/WithdrawList-93b42724.js	js	4.9 KB	2026-10-08	current
https://www.teacherin.com/static/js/Finance-67e3857a.js	js	9.5 KB	2026-10-08	current
https://www.teacherin.com/static/js/CourseOrder-5cc5aa92.js	js	9.1 KB	2026-10-08	current
https://www.teacherin.com/static/js/EnterClassRecords-e4c8992d.js	js	11.8 KB	2026-10-08	current
https://www.teacherin.com/static/js/NoteRecords-efb8f751.js	js	5.4 KB	2026-10-08	current
https://www.teacherin.com/static/js/WechatGoods-61359f23.js	js	11.7 KB	2026-10-08	current
https://www.teacherin.com/static/js/index-138eb367.js	js	22.2 KB	2026-10-08	current
https://www.teacherin.com/static/js/CourseTemplateRenameModal-ebba78d0.js	js	6.2 KB	2026-10-08	current
https://www.teacherin.com/static/js/6-18307664.js	js	11.7 KB	2026-10-08	current
https://www.teacherin.com/static/js/5-5039f537.js	js	8 KB	2026-10-08	current
https://www.teacherin.com/static/js/4-e69b6afe.js	js	8.6 KB	2026-10-08	current
https://www.teacherin.com/static/js/3-7e0052cb.js	js	5.3 KB	2026-10-08	current
https://www.teacherin.com/static/js/2-58deee6b.js	js	2.1 KB	2026-10-08	current
https://www.teacherin.com/static/js/1-65712bf0.js	js	2 KB	2026-10-08	current
https://www.teacherin.com/static/js/CourseEvaluation-660278e0.js	js	10.3 KB	2026-10-08	current
https://www.teacherin.com/static/js/CourseFile-b60a9238.js	js	21.9 KB	2026-10-08	current
https://www.teacherin.com/static/js/index-132be9d2.js	js	18 KB	2026-10-08	current
https://www.teacherin.com/static/js/CourseDescription-f119bc3d.js	js	20.8 KB	2026-10-08	current
https://www.teacherin.com/static/js/CourseBuyModal-832ce39e.js	js	17.5 KB	2026-10-08	current
https://www.teacherin.com/static/js/MobileOrder-563d3b04.js	js	18.1 KB	2026-10-08	current
https://www.teacherin.com/static/js/MultipleOperate-dbce4831.js	js	3 KB	2026-10-08	current
https://www.teacherin.com/static/js/FileBreadcrumbs-c2978ea3.js	js	3.2 KB	2026-10-08	current
https://www.teacherin.com/static/js/ThumbnailView-c936db89.js	js	6.4 KB	2026-10-08	current
https://www.teacherin.com/static/js/index-37dfd1d7.js	js	15.3 KB	2026-10-08	current
https://www.teacherin.com/static/js/MyCollect-1d1e94e6.js	js	5.6 KB	2026-10-08	current
https://www.teacherin.com/static/js/My-fb2c829b.js	js	7.5 KB	2026-10-08	current
https://www.teacherin.com/static/js/MobileLearnCourse-1da59157.js	js	1.6 KB	2026-10-08	current
https://www.teacherin.com/static/js/UserProfile-1e262515.js	js	2 KB	2026-10-08	current
https://www.teacherin.com/static/js/SpaceSetting-39c59fab.js	js	16.9 KB	2026-10-08	current
https://www.teacherin.com/static/js/BindOrg-6ad52cc5.js	js	1.9 KB	2026-10-08	current
https://www.teacherin.com/static/js/NoticeSetting-e9352128.js	js	3.3 KB	2026-10-08	current
https://www.teacherin.com/static/js/AccountManagement-7757bee2.js	js	9.7 KB	2026-10-08	current
https://www.teacherin.com/static/js/AddressManagement-c8a64bac.js	js	2.4 KB	2026-10-08	current
https://www.teacherin.com/static/js/UserSetting-f68df100.js	js	7.6 KB	2026-10-08	current
https://www.teacherin.com/static/js/index-9dff3086.js	js	27.5 KB	2026-10-08	current
https://www.teacherin.com/static/js/User-29eda608.js	js	9.7 KB	2026-10-08	current
https://www.teacherin.com/static/js/CustomDomain-af851f61.js	js	6.3 KB	2026-10-08	current
https://www.teacherin.com/static/js/CheckInvite-f50135bd.js	js	4.4 KB	2026-10-08	current
https://www.teacherin.com/static/js/SingaporeApplyMerchant-7b3b6dee.js	js	43.5 KB	2026-10-08	current
https://www.teacherin.com/static/js/ApplyOrganization-1a212b60.js	js	72.9 KB	2026-10-08	current
https://www.teacherin.com/static/js/CustomDomainContent-35574b69.js	js	19.8 KB	2026-10-08	current
https://www.teacherin.com/static/js/Detail-556a24e1.js	js	7.3 KB	2026-10-08	current
https://www.teacherin.com/static/js/index-a57a4118.js	js	9.8 KB	2026-10-08	current
https://www.teacherin.com/static/js/index-55a2e322.js	js	24.4 KB	2026-10-08	current
https://www.teacherin.com/static/js/WechatChannel-6e73d265.js	js	27.3 KB	2026-10-08	current
https://www.teacherin.com/static/js/distributionLog-7c1bc7c4.js	js	7.2 KB	2026-10-08	current
https://www.teacherin.com/static/js/distributionMember-8073c95a.js	js	5.1 KB	2026-10-08	current
https://www.teacherin.com/static/js/RenewOrderList-a03ab69a.js	js	16.3 KB	2026-10-08	current
https://www.teacherin.com/static/js/distributionGoods-88f29c9b.js	js	29.8 KB	2026-10-08	current
https://www.teacherin.com/static/js/DistributionCenter-28678e02.js	js	7.5 KB	2026-10-08	current
https://www.teacherin.com/static/js/AccountManage-ab1a249a.js	js	19.2 KB	2026-10-08	current
https://www.teacherin.com/static/js/FlowRecord-2836ad07.js	js	6.2 KB	2026-10-08	current
https://www.teacherin.com/static/js/WithdrawRecord-983279f8.js	js	5 KB	2026-10-08	current
https://www.teacherin.com/static/js/index-cc21d480.js	js	25.2 KB	2026-10-08	current
https://www.teacherin.com/static/js/OrgSetting-4ba066f2.js	js	2.7 KB	2026-10-08	current
https://www.teacherin.com/static/js/index-fa7d1631.js	js	1 MB	2026-10-08	current
https://www.teacherin.com/static/js/index-80792798.js	js	4.1 KB	2026-10-08	current
https://www.teacherin.com/static/js/OrgTeam-ea262605.js	js	6 KB	2026-10-08	current
https://www.teacherin.com/static/js/index-abf39959.js	js	393 KB	2026-10-08	current
https://www.teacherin.com/static/js/RefundLog-516f11d2.js	js	6.4 KB	2026-10-08	current
https://www.teacherin.com/static/js/index-58197870.js	js	26 KB	2026-10-08	current
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https://www.teacherin.com/static/js/PreImage-6fd7bc86.js	js	633 B	2026-10-08	current
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https://www.teacherin.com/static/js/MobileSearch-a0309587.js	js	1.3 KB	2026-10-08	current
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https://www.teacherin.com/static/js/ClientApply-b3bea05f.js	js	1.8 KB	2026-10-08	current
https://www.teacherin.com/static/js/License-875b59cf.js	js	1003 B	2026-10-08	current
https://www.teacherin.com/static/js/Feedback-e2897e45.js	js	7 KB	2026-10-08	current
https://www.teacherin.com/static/js/CommunityDynamic-78fdb27c.js	js	9.2 KB	2026-10-08	current
https://www.teacherin.com/static/js/AgreementPage-a7162b13.js	js	2.3 KB	2026-10-08	current
https://www.teacherin.com/static/js/ExploreDetail-54f1da7a.js	js	5 KB	2026-10-08	current
https://www.teacherin.com/static/js/CategoryPage-ce8077ea.js	js	10.6 KB	2026-10-08	current
https://www.teacherin.com/static/js/ExploreNew-332999d9.js	js	27.2 KB	2026-10-08	current
https://www.teacherin.com/static/js/Search-bc96907a.js	js	9.5 KB	2026-10-08	current
https://www.teacherin.com/static/js/Notification-d9a06b2e.js	js	5.3 KB	2026-10-08	current
https://www.teacherin.com/static/js/CoursePreviewInNewBee-c301105b.js	js	4.8 KB	2026-10-08	current
https://www.teacherin.com/static/js/CourseSetting-29199fc1.js	js	10.6 KB	2026-10-08	current
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https://www.teacherin.com/static/js/index-b7971a75.js	js	2.1 KB	2026-10-08	current
https://www.teacherin.com/static/js/NewBee-9a9c1a26.js	js	3.2 KB	2026-10-08	current
https://www.teacherin.com/static/js/PreviewFile-c2a98bb0.js	js	135.9 KB	2026-10-08	current
https://www.teacherin.com/static/js/CourseBaseInfo-aaf7af96.js	js	18.7 KB	2026-10-08	current
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https://www.teacherin.com/static/js/ContributeSubmit-bda93905.js	js	9.8 KB	2026-10-08	current
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https://www.teacherin.com/static/js/Lms-a22ef83b.js	js	7 KB	2026-10-08	current
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https://www.teacherin.com/static/js/HistoryVisions-a9897171.js	js	31.9 KB	2026-10-08	current
https://www.teacherin.com/static/js/ContributeDetail-7a521b6e.js	js	12.8 KB	2026-10-08	current
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https://www.teacherin.com/static/js/index-51a87c43.js	js	14.3 KB	2026-10-08	current
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https://www.teacherin.com/static/js/en-2bb29c5a.js	js	154.8 KB	2026-10-08	current
https://www.teacherin.com/static/js/userInfo-58417aea.js	js	616 B	2026-10-08	current
https://www.teacherin.com/static/js/lessonInfo-1a7ab9fb.js	js	610 B	2026-10-08	current
https://www.teacherin.com/static/js/getClusterInfo-84a80765.js	js	684 B	2026-10-08	current
https://www.teacherin.com/static/js/decodeWebData-f741af97.js	js	395 B	2026-10-08	current
https://www.teacherin.com/static/js/decodeBgCfg-6fd34940.js	js	393 B	2026-10-08	current
https://www.teacherin.com/static/js/clientInfo-04f49cb7.js	js	519 B	2026-10-08	current
https://www.teacherin.com/static/js/file-d30eb478.js	js	7.7 KB	2026-10-08	current
https://www.teacherin.com/static/js/classx-8ca7c658.js	js	21.2 KB	2026-10-08	current
https://www.teacherin.com/assets/mathjax/es5/tex-svg.js	js	1.6 MB	2026-10-08	current
https://www.teacherin.com/static/js/SecurityDeposit-db593a44.js	js	4.4 KB	2026-10-08	current
https://www.teacherin.com/static/js/NotSupportMessage-f3da0b17.js	js	1.1 KB	2026-10-08	current
https://www.teacherin.com/static/js/BaseNotification-7158641b.js	js	2 KB	2026-10-08	current
https://www.teacherin.com/static/js/EpptInCI-601bfe0d.js	js	5.6 KB	2026-10-08	current
https://www.teacherin.com/static/js/ExamModal-a85e3a0d.js	js	5.5 KB	2026-10-08	current
https://www.teacherin.com/static/js/NoviceGuide-f8481ca6.js	js	4.7 KB	2026-10-08	current
https://www.teacherin.com/static/js/PreferTagModal-a2133d33.js	js	1.6 KB	2026-10-08	current
https://www.teacherin.com/static/js/dom-79ae9a54.js	js	2.2 KB	2026-10-08	current
https://www.teacherin.com/static/js/useSecurityDeposit-5f827aff.js	js	1.1 KB	2026-10-08	current
https://www.teacherin.com/static/js/useNotificationStore-5d402422.js	js	2.4 KB	2026-10-08	current
https://www.teacherin.com/static/js/useLayoutStore-9e682bc0.js	js	848 B	2026-10-08	current
https://www.teacherin.com/static/js/_plugin-vue_export-helper-e037c8bb.js	js	468 B	2026-10-08	current
https://www.teacherin.com/static/js/index-51b1c55f.js	js	3.3 KB	2026-10-08	current
https://www.teacherin.com/static/js/index-a3c893a6.js	js	15.7 KB	2026-10-08	current
https://www.teacherin.com/static/js/firstNotUndefined-85867908.js	js	41.8 KB	2026-10-08	current
https://www.teacherin.com/static/js/vnode-7cc5d030.js	js	8.8 KB	2026-10-08	current
https://www.teacherin.com/static/js/TIcon-d9a2ab4a.js	js	563 B	2026-10-08	current
https://www.teacherin.com/static/js/captcha-dfdd3b86.js	js	1.1 KB	2026-10-08	current
https://www.teacherin.com/static/js/index-267e3c40.js	js	1.7 MB	2026-10-08	current
https://www.teacherin.com/assets/mathjax/load-mathjax-v1.js	js	1.8 KB	2026-10-08	current
https://www.teacherin.com/assets/js/require.js	js	17.3 KB	2026-10-08	current
https://www.teacherin.com/assets/js/reconnecting-websocket.js	js	3 KB	2026-10-08	current
https://www.teacherin.com/assets/js/iconfont.bb9fa5fd.js	js	464.5 KB	2026-10-08	current
https://www.teacherin.com/assets/js/checkBrowser.js	js	2.5 KB	2026-10-08	current
https://www.teacherin.com/assets/js/detect-browser.js	js	5.3 KB	2026-10-08	current
https://www.teacherin.com/assets/js/hls.js	js	1 MB	2026-10-08	current
https://www.teacherin.com/	html	6.7 KB	2026-10-08	current
https://www.teacherin.com/static/js/main-cfb072ca.js	js	15.9 KB	2026-10-08	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.

2026-10-08 first crawl

1 page, 164 files, 8.4 MB; 38 libraries, 3 identifiers, 83 third-party hosts
38 libraries added
- cloudinary-core 2.14.1
- eventemitter3
- url-toolkit
- webworkify-webpack
- playable 2.15.4
- clappr 0.3.13
- hls.js 1.7.3
- @armdborg/hls.js 1.7.2
- aes-js 3.1.2
- webpack
- easyqrcodejs 4.6.2
- @genpact/genome.mfe.mgtwin-app 1.1.101
- and 26 more
3 identifiers added
- teacherin Intercom app id
- errmon.eeo.im Sentry DSN host
- errmon.eeo.cn Sentry DSN host
83 third-party hosts added
164 files added

Questions about teacherin.com

How does PageSourceSearch know what teacherin.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 teacherin.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 teacherin.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 teacherin.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.