How does PageSourceSearch know what opyn-app.vercel.app 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 opyn-app.vercel.app 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 opyn-app.vercel.app?

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 opyn-app.vercel.app?

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

opyn-app.vercel.app

Built with gtm, gtag, @clerk/clerk-js 6.33.0, @clerk/ui 1.34.0, @scandit/web-datacapture-core 8.6.0, lodash 1.0.40, dashjs 5.2.1, @marimo-team/frontend 0.25.0, @inkeep/cxkit-js 0.5.119, @reachfive/identity-core 1.42.0, @reachfive/identity-ui 2.1.0, jspdf 4.2.1 and more. 2 pages and 113 stored files, last crawled 2026-10-03.

35 libraries 1 identifier 69 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
gtm		2026-10-03
gtag		2026-10-03
@clerk/clerk-js	6.33.0	2026-10-03
@clerk/ui	1.34.0	2026-10-03
@scandit/web-datacapture-core	8.6.0	2026-10-03
lodash	1.0.40	2026-10-03
dashjs	5.2.1	2026-10-03
@marimo-team/frontend	0.25.0	2026-10-03
@inkeep/cxkit-js	0.5.119	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
@cognigy/webchat	3.50.0	2026-10-03
oidc-client	1.11.5	2026-10-03
@tonconnect/ui	3.0.2	2026-10-03
exceljs	4.4.0	2026-10-03
formiojs	4.21.7	2026-10-03
fusioncharts	4.2.2	2026-10-03
artplayer-plugin-vast	1.0.0	2026-10-03
ovenplayer	0.10.54	2026-10-03
graphql-playground-react	1.7.28	2026-10-03
@walletconnect/web3-provider	1.8.0	2026-10-03
@recogito/annotorious	2.7.14	2026-10-03
@johanaarstein/dotlottie-player	1.5.23	2026-10-03
guidechimp	5.0.5	2026-10-03
@formio/js	5.6.1	2026-10-03
tonweb	0.0.66	2026-10-03
@accusoft/pdf-viewer	3.11.158639	2026-10-03
@tsocial/tvweb-sdk	5.38.6	2026-10-03
analytics-client	3.2.0	2026-10-03
@formbird/angular-elements	8.5.10	2026-10-03
@snapshot-labs/snapshot.js	0.17.5	2026-10-03
machinelearn	2.1.5	2026-10-03
@base-org/account	2.5.13	2026-10-03
coherentpdf	2.5.5	2026-10-03

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
Sentry DSN host (Sentry)	o495280.ingest.us.sentry.io	view source

Third-party hosts

Hosts outside opyn-app.vercel.app 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
addons.mozilla.org	connect	view source
addons.opera.com	connect	view source
api-sepolia.arbiscan.io	connect	view source
api.binance.com	connect	view source
api.etherscan.io	connect	view source
api.eu.amplitude.com	connect	view source
api.tenderly.co	connect	view source
api.wallet.coinbase.com	connect	view source
api2.amplitude.com	connect	view source
app.amplitude.com	connect	view source
app.eu.amplitude.com	connect	view source
apps.apple.com	connect	view source
apps.stag2.amplitude.com	connect	view source
arb-sepolia.g.alchemy.com	connect	view source
arbitrum-sepolia-rpc.publicnode.com	connect	view source
arweave.net	connect	view source
cdn.amplitude.com	connect	view source
cgrmbwftifqgvszllzgh.supabase.co	connect	view source
chrome.google.com	connect	view source
coinbase-wallet.onelink.me	connect	view source
coinbase.com	connect	view source
docs.cloud.coinbase.com	connect	view source
echo.walletconnect.com	connect	view source
enhanced-provider.rainbow.me	connect	view source
eth.merkle.io	connect	view source
etherscan.io	connect	view source
example.com	connect	view source
explorer-api.walletconnect.com	connect	view source
explorer.walletconnect.com	connect	view source
fonts.googleapis.com	connect	view source
github.com	connect	view source
go.cb-w.com	connect	view source
ipfs.io	connect	view source
keys.coinbase.com	connect	view source
learn.opyn.co	connect	view source
learn.rainbow.me	connect	view source
metamask.app.link	connect	view source
metamask.io	connect	view source
microsoftedge.microsoft.com	connect	view source
opyn-py-api.vercel.app	connect	view source
play.google.com	connect	view source
pulse.walletconnect.org	connect	view source
r354.adj.st	connect	view source
rainbow.download	connect	view source
rainbow.me	connect	view source
react.dev	connect	view source
rnbwapp.com	connect	view source
rpc.walletconnect.org	connect	view source
safe-client.safe.global	connect	view source
sepolia-rollup.arbitrum.io	connect	view source
sepolia.arbiscan.io	connect	view source
sr-client-cfg.amplitude.com	connect	view source
sr-client-cfg.eu.amplitude.com	connect	view source
sr-client-cfg.stag2.amplitude.com	connect	view source
support.ledger.com	connect	view source
trustwallet.com	connect	view source
use.typekit.net	connect	view source
va.vercel-scripts.com	connect	view source
vercel.live	connect	view source
verify.walletconnect.com	connect	view source
verify.walletconnect.org	connect	view source
viem.sh	connect	view source
vitals.vercel-insights.com	connect	view source
wagmi.sh	connect	view source
www.example.com	connect	view source
www.googletagmanager.com	connect	view source
www.ledger.com	connect	view source
www.w3.org	connect	view source
www.walletlink.org	connect	view source

Stored pages and scripts

The newest stored version of each file, newest first@if (p.FilesTruncated) { (the 500 newest of 113) }. 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
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https://www.googletagmanager.com/gtag/js?id=	js library	not fetched	2026-10-03	2026-10-03
https://www.googletagmanager.com/gtm.js?id=	js library	not fetched	2026-10-03	2026-10-03
https://opyn-app.vercel.app/_next/static/chunks/9788.87bbade43786c82d.js	js	3 KB	2026-10-03	2026-10-03
https://opyn-app.vercel.app/_next/static/chunks/9524.7484bd5f52b7d7d4.js	js	2.6 KB	2026-10-03	2026-10-03
https://opyn-app.vercel.app/_next/static/chunks/9496.0a893e036ba0e691.js	js	133.8 KB	2026-10-03	2026-10-03
https://opyn-app.vercel.app/_next/static/chunks/9399.a51146e33065b99a.js	js	2.3 KB	2026-10-03	2026-10-03
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https://opyn-app.vercel.app/_next/static/chunks/8907.0f8e5659eb497a70.js	js	40.9 KB	2026-10-03	2026-10-03
https://opyn-app.vercel.app/_next/static/chunks/8973.24f18d56198b04db.js	js	56.3 KB	2026-10-03	2026-10-03
https://opyn-app.vercel.app/_next/static/chunks/8711.a851ca4936ba4fb6.js	js	12.8 KB	2026-10-03	2026-10-03
https://opyn-app.vercel.app/_next/static/chunks/8649.275eda374ca158ac.js	js	2.8 KB	2026-10-03	2026-10-03
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https://opyn-app.vercel.app/_next/static/chunks/6471.d855de002eced4f9.js	js	3.6 KB	2026-10-03	2026-10-03
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https://opyn-app.vercel.app/_next/static/chunks/…pl_J413fMMN9Fiqgff2DMtek9qgKGfW	js	1.7 KB	2026-10-03	2026-10-03
https://opyn-app.vercel.app/_next/static/chunks/…pl_J413fMMN9Fiqgff2DMtek9qgKGfW	js	2.7 KB	2026-10-03	2026-10-03
https://opyn-app.vercel.app/_next/static/chunks/…pl_J413fMMN9Fiqgff2DMtek9qgKGfW	js	13.4 KB	2026-10-03	2026-10-03
https://opyn-app.vercel.app/_next/static/chunks/…pl_J413fMMN9Fiqgff2DMtek9qgKGfW	js	83.6 KB	2026-10-03	2026-10-03
https://opyn-app.vercel.app/_next/static/chunks/…pl_J413fMMN9Fiqgff2DMtek9qgKGfW	js	425.5 KB	2026-10-03	2026-10-03
https://opyn-app.vercel.app/_next/static/chunks/…pl_J413fMMN9Fiqgff2DMtek9qgKGfW	js	320 KB	2026-10-03	2026-10-03
https://opyn-app.vercel.app/_next/static/chunks/…pl_J413fMMN9Fiqgff2DMtek9qgKGfW	js	5.6 KB	2026-10-03	2026-10-03
https://opyn-app.vercel.app/_next/static/chunks/…pl_J413fMMN9Fiqgff2DMtek9qgKGfW	js	144.5 KB	2026-10-03	2026-10-03
https://opyn-app.vercel.app/_next/static/chunks/…pl_J413fMMN9Fiqgff2DMtek9qgKGfW	js	1.3 KB	2026-10-03	2026-10-03
https://opyn-app.vercel.app/_next/static/chunks/…pl_J413fMMN9Fiqgff2DMtek9qgKGfW	js	310.5 KB	2026-10-03	2026-10-03
https://opyn-app.vercel.app/_next/static/chunks/…pl_J413fMMN9Fiqgff2DMtek9qgKGfW	js	171.1 KB	2026-10-03	2026-10-03
https://opyn-app.vercel.app/_next/static/chunks/…pl_J413fMMN9Fiqgff2DMtek9qgKGfW	js	116.6 KB	2026-10-03	2026-10-03
https://opyn-app.vercel.app/welcome?redirect=%2Fportfolio	html	40.6 KB	2026-10-03	2026-10-03
https://opyn-app.vercel.app/welcome?redirect=%2Ftrade%2Fperps%2FWETH-USDC-1	html	40.6 KB	2026-10-03	2026-10-03

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

2 pages, 113 files, 5.6 MB; 35 libraries, 1 identifier, 69 third-party hosts
35 libraries added
- fusioncharts 4.2.2
- @inkeep/cxkit-js 0.5.119
- @clerk/ui 1.34.0
- @marimo-team/frontend 0.25.0
- artplayer-plugin-vast 1.0.0
- @tonconnect/ui 3.0.2
- @scandit/web-datacapture-core 8.6.0
- @clerk/clerk-js 6.33.0
- lodash 1.0.40
- @johanaarstein/dotlottie-player 1.5.23
- formiojs 4.21.7
- guidechimp 5.0.5
- and 23 more
1 identifier added
- o495280.ingest.us.sentry.io Sentry DSN host
69 third-party hosts added
- react.dev
- www.w3.org
- www.example.com
- example.com
- enhanced-provider.rainbow.me
- learn.rainbow.me
- play.google.com
- apps.apple.com
- coinbase.com
- coinbase-wallet.onelink.me
- chrome.google.com
- metamask.app.link
- and 57 more
113 files added

Questions about opyn-app.vercel.app

How does PageSourceSearch know what opyn-app.vercel.app 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 opyn-app.vercel.app 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 opyn-app.vercel.app?: 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 opyn-app.vercel.app?: 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.