How does PageSourceSearch know what eightsleep.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 eightsleep.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 eightsleep.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 eightsleep.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

eightsleep.com

Built with webpack, @clerk/ui 1.34.0, @wix/design-system 1.328.0, lottie-web 5.13.0, @amplitude/amplitude-js-gtm 3.25.0, @blotoutio/providers-blotout-consent-sdk 1.73.0, dashjs 5.2.1, @inkeep/cxkit-js 0.5.119, onetrust, tiktok-pixel, facebook-pixel, @reachfive/identity-core 1.42.0 and more. 5 pages and 164 stored files, last crawled 2026-10-02.

rank 409,371 54 libraries 2 identifiers 54 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
webpack		2026-10-02
@clerk/ui	1.34.0	2026-10-02
@wix/design-system	1.328.0	2026-10-02
lottie-web	5.13.0	2026-10-02
@amplitude/amplitude-js-gtm	3.25.0	2026-10-02
@blotoutio/providers-blotout-consent-sdk	1.73.0	2026-10-02
dashjs	5.2.1	2026-10-02
@inkeep/cxkit-js	0.5.119	2026-10-02
onetrust		2026-10-02
tiktok-pixel		2026-10-02
facebook-pixel		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
kore-web-sdk	11.28.1	2026-10-02
oidc-client	1.11.5	2026-10-02
exceljs	4.4.0	2026-10-02
pinterest-tag		2026-10-02
klaviyo		2026-10-02
spectorjs	0.9.33	2026-10-02
face-age	2.4.6	2026-10-02
@moveo-ai/web-client	0.117.0	2026-10-02
webex	3.12.0	2026-10-02
ovenplayer	0.10.54	2026-10-02
@tinybirdco/flock.js	1.7.1	2026-10-02
graphql-playground-react	1.7.28	2026-10-02
@recogito/annotorious	2.7.14	2026-10-02
@johanaarstein/dotlottie-player	1.5.23	2026-10-02
webcrypto	0.1.1	2026-10-02
@betterbugs/web-sdk	0.0.47	2026-10-02
docusaurus-plugin-drawio	0.4.0	2026-10-02
tonweb	0.0.66	2026-10-02
antdv-next	1.5.4	2026-10-02
@accusoft/pdf-viewer	3.11.158639	2026-10-02
@ant-design/x	2.9.0	2026-10-02
mori-chat-widget	2.0.49	2026-10-02
@stytch/vanilla-js	6.3.0	2026-10-02
xlsx-populate	1.21.0	2026-10-02
wonder-image	2.1.2-alpha.4	2026-10-02
@joyfill/components	4.0.0-rc26	2026-10-02
@story-telling-reporter/react-embed-code-generator	2.2.20	2026-10-02
flowbitz	2.4.5	2026-10-02
veris-storybook-beta	0.1.81-react-upgrade	2026-10-02
machinelearn	2.1.5	2026-10-02
@chativa/connector-directline	0.15.0	2026-10-02
coherentpdf	2.5.5	2026-10-02
gsap	3.15.0	2026-09-24
@lottiefiles/lottie-player	2.0.12	2026-09-24
@eka-care/medassist-widget	0.1.131	2026-09-24
sa-sdk-javascript	1.27.14	2026-09-24
webtorrent	3.0.21	2026-09-24
@flowbase-co/boosters-gsap	3.12.7	2026-09-24
replaywebpage	2.5.3	2026-09-24
@walletconnect/client	1.8.0	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.

What	Value	Found in
Bing site verification (Microsoft)	F9CBBB4F21625B0D49A4E2054441D1C4	view source
Google site verification (Google)	JUxk4TDrnS-z1Iz0gDPNAjBzpcApfilHzW8_5e4bbUo	view source

Third-party hosts

Hosts outside eightsleep.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
analytics.tiktok.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
api2.amplitude.com	connect	view source
app.amplitude.com	connect	view source
app.eu.amplitude.com	connect	view source
apps.stag2.amplitude.com	connect	view source
bzrcdn.openai.com	connect	view source
calendly.com	connect	view source
campaign.fbot.me	connect	view source
cdn.amplitude.com	connect	view source
cdn.cookielaw.org	connect	view source
cdn.phrase.com	connect	view source
cdn.verifypass.com	connect	view source
cdn1.affirm.ca	connect	view source
cdn1.affirm.com	connect	view source
connect.facebook.net	connect	view source
d115sb6i1ixllw.cloudfront.net	connect	view source
d20xtzwzcl0ceb.cloudfront.net	connect	view source
d34r8q7sht0t9k.cloudfront.net	connect	view source
d3uc069fcn7uxw.cloudfront.net	connect	view source
decagon.ai	connect	view source
diagnostics.prod.eu-central-1.amplitude.com	connect	view source
diagnostics.prod.us-west-2.amplitude.com	connect	view source
docs.datadoghq.com	connect	view source
dotenvx.com	connect	view source
eight-eightsleep-react.s3.us-east-2.amazonaws.com	connect	view source
eight.app.link	connect	view source
eightsleep-react-assets.s3.us-east-2.amazonaws.com	connect	view source
github.com	connect	view source
json-schema.org	connect	view source
react.dev	connect	view source
res.cloudinary.com	connect	view source
s.pinimg.com	connect	view source
sdk.lifesight.io	connect	view source
snippet.maze.co	connect	view source
sr-client-cfg.amplitude.com	connect	view source
sr-client-cfg.eu.amplitude.com	connect	view source
static.agentio.com	connect	view source
static.fbot.me	connect	view source
static.shopmy.us	connect	view source
tag.simpli.fi	connect	view source
va.vercel-scripts.com	connect	view source
vitals.vercel-insights.com	connect	view source
wa.me	connect	view source
www.affirm.com	connect	view source
www.datad0g-browser-agent.com	connect	view source
www.datadoghq-browser-agent.com	connect	view source
www.instagram.com	connect	view source
www.w3.org	connect	view source
www.x.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 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://analytics.tiktok.com/i18n/pixel/events.js	js library	not fetched	2026-10-02	current
https://cdn.cookielaw.org/scripttemplates/otSDKStub.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://s.pinimg.com/ct/core.js	js library	not fetched	2026-10-02	current
https://static.klaviyo.com/onsite/js/klaviyo.js?company_id=QtJCHb	js library	not fetched	2026-10-02	current
https://www.eightsleep.com/_next/static/chunks/9093.23d7445479717ba2.js	js	3.7 KB	2026-10-02	2026-10-02
https://www.eightsleep.com/_next/static/chunks/8596.7595b175dfe15e21.js	js	20.8 KB	2026-10-02	2026-10-02
https://www.eightsleep.com/_next/static/chunks/4744.143fe560b005dd21.js	js	28 KB	2026-10-02	2026-10-02
https://www.eightsleep.com/_next/static/chunks/7853.26d56ffa5cbfa396.js	js	8.5 KB	2026-10-02	2026-10-02
https://www.eightsleep.com/_next/static/chunks/4007.59602d9ae4a39e03.js	js	215.4 KB	2026-10-02	2026-10-02
https://www.eightsleep.com/_next/static/chunks/2342.8e86f1d46b39afa5.js	js	7 KB	2026-10-02	2026-10-02
https://www.eightsleep.com/_next/static/chunks/1091.7b1fa218c3df497f.js	js	1.3 KB	2026-10-02	2026-10-02
https://www.eightsleep.com/_next/static/chunks/450.cdf9ccb81c0659d9.js	js	39.2 KB	2026-10-02	2026-10-02
https://www.eightsleep.com/_next/static/chunks/dc112a36.4bb45b210c8d9c79.js	js	298.7 KB	2026-10-02	2026-10-02
https://www.eightsleep.com/_next/static/chunks/01db7e4b.c082255acc488961.js	js	171.5 KB	2026-10-02	2026-10-02
https://www.eightsleep.com/_next/static/chunks/79ff2c8e.dee18be6b28d51eb.js	js	117.5 KB	2026-10-02	2026-10-02
https://www.eightsleep.com/_next/static/chunks/pages/_error-c970d8b55ace1b48.js	js	224 B	2026-10-02	2026-10-02
https://www.eightsleep.com/_next/static/s5eKXcaaNAX2Jt0Cr8014/_ssgManifest.js	js	4.4 KB	2026-10-02	2026-10-02
https://www.eightsleep.com/_next/static/s5eKXcaaNAX2Jt0Cr8014/_buildManifest.js	js	4.4 KB	2026-10-02	2026-10-02
https://www.eightsleep.com/_vercel/speed-insights/script.js	js	12.3 KB	2026-10-02	current
https://www.eightsleep.com/_vercel/insights/script.js	js	4.4 KB	2026-10-02	current
https://www.eightsleep.com/_next/static/chunks/a…/page-c67c7fc712c34b87.js	js	3.4 KB	2026-10-02	2026-10-02
https://www.eightsleep.com/_next/static/chunks/6115-43ae97375cfa9bf0.js	js	131.2 KB	2026-10-02	2026-10-02
https://www.eightsleep.com/_next/static/chunks/9573-464dfd0068b7f717.js	js	13.5 KB	2026-10-02	2026-10-02
https://www.eightsleep.com/_next/static/chunks/a…/page-287449c3205f163a.js	js	5 KB	2026-10-02	2026-10-02
https://www.eightsleep.com/_next/static/chunks/a…/page-c4206768278a3c46.js	js	18.2 KB	2026-10-02	2026-10-02
https://www.eightsleep.com/_next/static/chunks/207-e1430c683b1fdb30.js	js	36 KB	2026-10-02	2026-10-02
https://www.eightsleep.com/_next/static/chunks/a…/layout-ecce42cf9c61cc0e.js	js	4.8 KB	2026-10-02	2026-10-02
https://www.eightsleep.com/_next/static/chunks/a…/page-a0e464d5feb0bb6f.js	js	14 KB	2026-10-02	2026-10-02
https://www.eightsleep.com/_next/static/chunks/9478-521b5fbabdf4de67.js	js	112.3 KB	2026-10-02	2026-10-02
https://www.eightsleep.com/_next/static/chunks/4351-5c52af2e9689b53f.js	js	30.9 KB	2026-10-02	2026-10-02
https://www.eightsleep.com/_next/static/chunks/3030-a529902944eef3d5.js	js	18.9 KB	2026-10-02	2026-10-02
https://www.eightsleep.com/_next/static/chunks/7505-8adcdd7689151325.js	js	15.4 KB	2026-10-02	2026-10-02
https://www.eightsleep.com/_next/static/chunks/3831-a200142ca7aa3d04.js	js	27.7 KB	2026-10-02	2026-10-02
https://www.eightsleep.com/_next/static/chunks/7066-c81b9a90018f4958.js	js	55.6 KB	2026-10-02	2026-10-02
https://www.eightsleep.com/_next/static/chunks/8644-555f454dc619e2fa.js	js	18.2 KB	2026-10-02	2026-10-02
https://www.eightsleep.com/_next/static/chunks/9993-c9b724aa1f9169ba.js	js	30.6 KB	2026-10-02	2026-10-02
https://www.eightsleep.com/_next/static/chunks/7124-f85d4db707679128.js	js	111 KB	2026-10-02	2026-10-02
https://www.eightsleep.com/_next/static/chunks/3646-55f7881a0bbd5ece.js	js	25.7 KB	2026-10-02	2026-10-02
https://www.eightsleep.com/_next/static/chunks/1928-02606b045dd0e2e6.js	js	19.3 KB	2026-10-02	2026-10-02
https://www.eightsleep.com/_next/static/chunks/9488-f68bc1d8720d5561.js	js	49 KB	2026-10-02	2026-10-02
https://www.eightsleep.com/_next/static/chunks/webpack-31c4a073157ab790.js	js	6.3 KB	2026-10-02	2026-10-02
https://www.eightsleep.com/_next/static/chunks/polyfills-42372ed130431b0a.js	js	110 KB	2026-10-02	current
https://www.eightsleep.com/_next/static/chunks/a…/layout-595f752dfa959d2a.js	js	29.7 KB	2026-10-02	2026-10-02
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https://www.eightsleep.com/_next/static/chunks/app/layout-9e15d6fa80d64ed8.js	js	42.1 KB	2026-10-02	2026-10-02
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https://www.eightsleep.com/_next/static/chunks/a…/page-9a95211172893d0a.js	js	58.5 KB	2026-10-02	2026-10-02
https://www.eightsleep.com/_next/static/chunks/1511-323cb6628b88fa6b.js	js	30 KB	2026-10-02	2026-10-02
https://www.eightsleep.com/_next/static/chunks/211-6ae9e8ab60096bba.js	js	27.6 KB	2026-10-02	2026-10-02
https://www.eightsleep.com/_next/static/chunks/2196-1a1e8d1a0f33a308.js	js	11.2 KB	2026-10-02	current
https://www.eightsleep.com/_next/static/chunks/7852-64b978828616452e.js	js	92.5 KB	2026-10-02	2026-10-02
https://www.eightsleep.com/_next/static/chunks/955-dc1031abdc92a7bf.js	js	61.9 KB	2026-10-02	2026-10-02
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https://www.eightsleep.com/_next/static/chunks/main-app-b7ac91ae224968d9.js	js	572 B	2026-10-02	2026-10-02
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https://www.eightsleep.com/pod-cover	html	1.7 MB	2026-10-02	2026-10-02
https://www.eightsleep.com/accessibility	html	743.3 KB	2026-10-02	2026-10-02
https://www.eightsleep.com/blog/improved-sleep-quality/	html	794.5 KB	2026-10-02	2026-10-02
https://www.eightsleep.com/product/pod-cover/	html	1.2 MB	2026-10-02	2026-10-02
https://www.eightsleep.com/	html	1.5 MB	2026-10-02	2026-10-02
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https://www.eightsleep.com/_next/static/chunks/pages/_error-ff431fa75c297bd3.js	js	229 B	2026-09-24	current
https://www.eightsleep.com/_next/static/1AYftHEKbSa4E8bFE6sj5/_ssgManifest.js	js	4.4 KB	2026-09-24	current
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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.

2026-10-02 first crawl

5 pages, 89 files, 11.2 MB; 46 libraries, 2 identifiers, 54 third-party hosts
46 libraries added
- @ant-design/x 2.9.0
- @inkeep/cxkit-js 0.5.119
- @clerk/ui 1.34.0
- @moveo-ai/web-client 0.117.0
- @joyfill/components 4.0.0-rc26
- mori-chat-widget 2.0.49
- spectorjs 0.9.33
- face-age 2.4.6
- flowbitz 2.4.5
- tonweb 0.0.66
- machinelearn 2.1.5
- webcrypto 0.1.1
- and 34 more
2 identifiers added
- JUxk4TDrnS-z1Iz0gDPNAjBzpcApfilHzW8_5e4bbUo Google site verification
- F9CBBB4F21625B0D49A4E2054441D1C4 Bing site verification
54 third-party hosts added
89 files added

Questions about eightsleep.com

How does PageSourceSearch know what eightsleep.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 eightsleep.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 eightsleep.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 eightsleep.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.