How does PageSourceSearch know what travelex.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 travelex.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 travelex.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 travelex.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

travelex.com.sg

Built with gtm, gtag, @dearhive/dearflip-jquery-flipbook 1.7.3, arrive 2.5.3, selectric 1.13.0, jqueryui 1.11.1. 5 pages and 9 stored files, last crawled 2026-10-07.

rank 12,354,711 6 libraries 9 identifiers 5 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		2026-10-07
gtag		2026-10-07
@dearhive/dearflip-jquery-flipbook	1.7.3	2026-10-07
arrive	2.5.3	2026-10-07
selectric	1.13.0	2026-10-07
jqueryui	1.11.1	2026-10-07

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
Google Analytics 4 measurement id (Google)	G-CE545H3TF3	view source
Google site verification (Google)	-eOYeCK6sqmfj7LKDMhewHXKnYBMNh2B_3Qscvkun9s	view source
Google site verification (Google)	6bJNHkdqpZZ2gp7XCvZugqxnPi8vkWvPjC3q1q4JdLw	view source
Google site verification (Google)	7M9WulJ1UASzjmgSeFBqtEqpMWP0vlvGCoTuH2kIntc	view source
Google site verification (Google)	926jcZo4qmIOC1WrS_uEP8Lmp0eNRhcDPVoG9fsNcfE	view source
Google site verification (Google)	IStLreumYjnhVMNK2cYX7MlihoNH6fxA6fTlrv0k8jg	view source
Google site verification (Google)	k2EqMalsK2yfOljVWWCsnMsY_TdQ9SJAdfMHGd89lCU	view source
Google Tag Manager container (Google)	GTM-NMP69PW	view source
Universal Analytics property id (Google)	UA-138496382-2	view source

Third-party hosts

Hosts outside travelex.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
checkout.travelex.co.uk	script	view source
maps.google.com	connect	view source
www.googletagmanager.com	script iframe	view source
www.w3.org	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 9) }. 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.googletagmanager.com/gtag/js?id=G-CE545H3TF3	js library	not fetched	2026-10-07	2026-10-07
https://www.googletagmanager.com/gtag/js?id=UA-138496382-2	js library	not fetched	2026-10-07	2026-10-07
https://www.travelex.com.sg/bundles/js-body?v=M4…RM-l1I4ZtEcyc5nQJrC6AXAPTc7mpc1	js	95.4 KB	2026-10-07	2026-10-07
https://www.travelex.com.sg/bundles/js-head?v=AX…Kcedjw5hxgriXt5PWepCwvHrgMkpBw1	js	210.4 KB	2026-10-07	2026-10-07
https://www.travelex.com.sg/contact	html	22 KB	2026-10-07	2026-10-07
https://www.travelex.com.sg/currency	html	24.8 KB	2026-10-07	2026-10-07
https://www.travelex.com.sg/about-us	html	20.7 KB	2026-10-07	2026-10-07
https://www.travelex.com.sg/stores/	html	24.1 KB	2026-10-07	2026-10-07
https://www.travelex.com.sg/	html	39.1 KB	2026-10-07	2026-10-07

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.

2026-10-07 first crawl

5 pages, 9 files, 436.5 KB; 6 libraries, 9 identifiers, 5 third-party hosts
6 libraries added
- gtm
- gtag
- @dearhive/dearflip-jquery-flipbook 1.7.3
- arrive 2.5.3
- jqueryui 1.11.1
- selectric 1.13.0
9 identifiers added
- GTM-NMP69PW Google Tag Manager container
- G-CE545H3TF3 Google Analytics 4 measurement id
- IStLreumYjnhVMNK2cYX7MlihoNH6fxA6fTlrv0k8jg Google site verification
- 7M9WulJ1UASzjmgSeFBqtEqpMWP0vlvGCoTuH2kIntc Google site verification
- 926jcZo4qmIOC1WrS_uEP8Lmp0eNRhcDPVoG9fsNcfE Google site verification
- 6bJNHkdqpZZ2gp7XCvZugqxnPi8vkWvPjC3q1q4JdLw Google site verification
- -eOYeCK6sqmfj7LKDMhewHXKnYBMNh2B_3Qscvkun9s Google site verification
- k2EqMalsK2yfOljVWWCsnMsY_TdQ9SJAdfMHGd89lCU Google site verification
- UA-138496382-2 Universal Analytics property id
6 third-party hosts added
9 files added

Questions about travelex.com.sg

How does PageSourceSearch know what travelex.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 travelex.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 travelex.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 travelex.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.