How does PageSourceSearch know what virginactive.com.sg 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 virginactive.com.sg 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 virginactive.com.sg?

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 virginactive.com.sg?

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

virginactive.com.sg

Built with gtm, @clerk/clerk-js 6.33.0, @clerk/ui 1.34.0, algoliasearch.zendesk-hc 3.0.0, dashjs 5.2.1, @inkeep/cxkit-js 0.5.119, stripe-js 5.10.0, recaptcha, @reachfive/identity-core 1.42.0, @reachfive/identity-ui 2.1.0, jspdf 4.2.1, spectorjs 0.9.33 and more. 5 pages and 131 stored files, last crawled 2026-10-03.

rank 1,950,046 24 libraries 0 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
gtm		2026-10-03
@clerk/clerk-js	6.33.0	2026-10-03
@clerk/ui	1.34.0	2026-10-03
algoliasearch.zendesk-hc	3.0.0	2026-10-03
dashjs	5.2.1	2026-10-03
@inkeep/cxkit-js	0.5.119	2026-10-03
stripe-js	5.10.0	2026-10-03
recaptcha		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
spectorjs	0.9.33	2026-10-03
@moveo-ai/web-client	0.117.0	2026-10-03
@toast-ui/calendar	2.1.3	2026-10-03
ovenplayer	0.10.54	2026-10-03
graphql-playground-react	1.7.28	2026-10-03
@recogito/annotorious	2.7.14	2026-10-03
@machi-pla/ai-chatbot	0.1.25	2026-10-03
umd-react	19.3.0	2026-10-03
@ant-design/x	2.9.0	2026-10-03
mori-chat-widget	2.0.49	2026-10-03
@stytch/vanilla-js	6.3.0	2026-10-03
@joyfill/components	4.0.0-rc26	2026-10-03
@solace-health/solace-entry-widget	2.0.5	2026-10-03

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 virginactive.com.sg 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
apps.apple.com	connect	view source
assets-us-01.kc-usercontent.com	connect	view source
assets.secure.checkout.visa.com	connect	view source
cdf6519016.cdn.adyen.com	connect	view source
checkoutanalytics-live-apse.adyen.com	connect	view source
checkoutanalytics-live-au.adyen.com	connect	view source
checkoutanalytics-live-in.adyen.com	connect	view source
checkoutanalytics-live-us.adyen.com	connect	view source
checkoutanalytics-live.adyen.com	connect	view source
checkoutanalytics-test.adyen.com	connect	view source
checkoutshopper-live-apse.adyen.com	connect	view source
checkoutshopper-live-au.adyen.com	connect	view source
checkoutshopper-live-in.adyen.com	connect	view source
checkoutshopper-live-us.adyen.com	connect	view source
checkoutshopper-live.adyen.com	connect	view source
checkoutshopper-test.adyen.com	connect	view source
developers.google.com	connect	view source
documents.riverty.com	connect	view source
fonts.googleapis.com	connect	view source
github.com	connect	view source
instagram.com	connect	view source
js.stripe.com	connect	view source
kit.cash.app	connect	view source
maps.googleapis.com	connect	view source
page.line.me	connect	view source
pay.google.com	connect	view source
play.google.com	connect	view source
react.dev	connect	view source
sandbox-assets.secure.checkout.visa.com	connect	view source
sandbox.kit.cash.app	connect	view source
sandbox.src.mastercard.com	connect	view source
schema.org	connect	view source
src.mastercard.com	connect	view source
static-eu.payments-amazon.com	connect	view source
static-na.payments-amazon.com	connect	view source
static.payu.com	connect	view source
stripe.com	connect	view source
use.typekit.net	connect	view source
wa.me	connect	view source
www.facebook.com	connect	view source
www.google.com	connect	view source
www.googletagmanager.com	connect	view source
www.instagram.com	connect	view source
www.linkedin.com	connect	view source
www.paypal.com	connect	view source
www.przelewy24.pl	connect	view source
www.virginactive.co.th	connect	view source
www.virginactive.co.uk	connect	view source
www.virginactive.co.za	connect	view source
www.virginactive.com.au	connect	view source
www.virginactive.it	connect	view source
www.w3.org	connect	view source
www.youtube.com	connect	view source
x.klarnacdn.net	connect	view source

Stored pages and scripts

The newest stored version of each file, newest first@if (p.FilesTruncated) { (the 500 newest of 131) }. 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.google.com/recaptcha/enterprise.js?render=explicit	js library	not fetched	2026-10-03	current
https://www.googletagmanager.com/gtm.js?id=	js library	not fetched	2026-10-03	current
https://virginactive.com.sg/_next/static/chunks/9198.c93e15589691d5d5.js	js	20.3 KB	2026-10-03	current
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https://virginactive.com.sg/_next/static/chunks/1481.261d68d05107ced6.js	js	2.7 KB	2026-10-03	current
https://virginactive.com.sg/_next/static/chunks/webpack-22a096a64b27baa1.js	js	5.5 KB	2026-10-03	current
https://virginactive.com.sg/_next/static/chunks/polyfills-42372ed130431b0a.js	js	110 KB	2026-10-03	current
https://virginactive.com.sg/locations	html	45 KB	2026-10-03	2026-10-03
https://virginactive.com.sg/free-trial	html	34.5 KB	2026-10-03	2026-10-03
https://virginactive.com.sg/blog/articles/how-to…u-are-busy-tired-or-intimidated	html	33 KB	2026-10-03	2026-10-03
https://virginactive.com.sg/contact-us	html	22.3 KB	2026-10-03	2026-10-03
https://virginactive.com.sg/	html	61.7 KB	2026-10-03	2026-10-03
https://virginactive.com.sg/_next/static/7LRfBsCi4SP2PNmaYB5dg/_ssgManifest.js	js	558 B	2026-09-25	current
https://virginactive.com.sg/_next/static/7LRfBsCi4SP2PNmaYB5dg/_buildManifest.js	js	9.7 KB	2026-09-25	current
https://virginactive.com.sg/_next/static/chunks/pages/_app-86c1a47c4579c8e3.js	js	331.7 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, 128 files, 3.6 MB; 24 libraries, 0 identifiers, 54 third-party hosts
24 libraries added
- jspdf 4.2.1
- @reachfive/identity-core 1.42.0
- @reachfive/identity-ui 2.1.0
- ovenplayer 0.10.54
- @recogito/annotorious 2.7.14
- dashjs 5.2.1
- graphql-playground-react 1.7.28
- @moveo-ai/web-client 0.117.0
- @ant-design/x 2.9.0
- @inkeep/cxkit-js 0.5.119
- @clerk/ui 1.34.0
- @joyfill/components 4.0.0-rc26
- and 12 more
54 third-party hosts added
- github.com
- react.dev
- www.w3.org
- fonts.googleapis.com
- use.typekit.net
- apps.apple.com
- play.google.com
- www.facebook.com
- instagram.com
- www.youtube.com
- www.linkedin.com
- www.instagram.com
- and 42 more
128 files added

Questions about virginactive.com.sg

How does PageSourceSearch know what virginactive.com.sg 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 virginactive.com.sg 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 virginactive.com.sg?: 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 virginactive.com.sg?: 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.