How does PageSourceSearch know what hachettelearning.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 hachettelearning.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 hachettelearning.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 hachettelearning.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

hachettelearning.com

Built with hls.js, @clerk/ui 1.34.0, @algolia/autocomplete-js 1.19.11, algoliasearch.zendesk-hc 3.0.0, @findify/bundle 7.1.108, dashjs, facebook-sdk, flv.js, cloudflare-insights, @brainfish-ai/nudge-widget 0.1.3, vimeo-player, typesense-docsearch.js 3.4.1 and more. 5 pages and 193 stored files, last crawled 2026-10-09.

24 libraries 5 identifiers 33 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		2026-10-09
@clerk/ui	1.34.0	2026-10-09
@algolia/autocomplete-js	1.19.11	2026-10-09
algoliasearch.zendesk-hc	3.0.0	2026-10-09
@findify/bundle	7.1.108	2026-10-09
dashjs		2026-10-09
facebook-sdk		2026-10-09
flv.js		2026-10-09
cloudflare-insights		2026-10-09
@brainfish-ai/nudge-widget	0.1.3	2026-10-09
vimeo-player		2026-10-09
typesense-docsearch.js	3.4.1	2026-10-09
graphql-playground-react	1.7.28	2026-10-09
@algolia/algoliasearch-netlify-frontend	1.0.15	2026-10-09
antd-mobile	5.43.0	2026-10-09
stackedboost-shopify-assets	0.2.0	2026-10-09
@pdftron/pdfjs-express-viewer	8.7.5	2026-10-09
@memori.ai/memori-webcomponent	8.3.3	2026-10-09
@afosto/instant-search-widget	0.2.18	2026-10-09
tripetto-services	2.1.1	2026-10-09
@collectionspace/cspace-public-browser	4.0.0	2026-10-09
@accusoft/pdf-viewer	3.11.158639	2026-10-09
@widgetti/solara-vuetify-app	10.1.1	2026-10-09
js-dos	8.4.1	2026-10-09

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
Facebook domain verification (Meta)	h0p3b26us4gxxoh5ni9plzoy0sv3nr	view source
Google site verification (Google)	9T-clSka_8wLS8GDf9EGTs3D563WeXJpQIpYnthKQiw	view source
Google site verification (Google)	XbkvoYFNrBMmTZRRE85aY0N7InH4EiDr1AiaIRZWCJY	view source
Google site verification (Google)	dDnRAWS84H1MY5HHS_GQXwrbodHH4tmBPn6j7Io35Gw	view source
Google site verification (Google)	h5OM3aOYr5F8EVMF4cVga0JT1Knxac-jcxfw5ZDwcsI	view source

Third-party hosts

Hosts outside hachettelearning.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.dmcdn.net	connect	view source
api.whatsapp.com	connect	view source
bot.leadoo.com	script	view source
cdn.embed.ly	connect	view source
cdn.eu.trustpayments.com	connect	view source
cdn.jsdelivr.net	connect	view source
cdnjs.cloudflare.com	connect	view source
cmp.osano.com	script	view source
connect.facebook.net	connect	view source
fast.wistia.com	connect	view source
insights.algolia.io	connect	view source
kit.fontawesome.com	script	view source
noembed.com	connect	view source
play.vidyard.com	connect	view source
player.twitch.tv	connect	view source
player.vimeo.com	connect	view source
reactjs.org	connect	view source
schema.org	connect	view source
static.cloudflareinsights.com	script	view source
streamable.com	connect	view source
twitter.com	connect	view source
uk.trustpilot.com	connect	view source
videodelivery.net	connect	view source
w.soundcloud.com	connect	view source
widget.mixcloud.com	connect	view source
widget.trustpilot.com	script	view source
www.algolia.com	connect	view source
www.facebook.com	connect	view source
www.linkedin.com	connect	view source
www.mixcloud.com	connect	view source
www.w3.org	connect	view source
www.youtube-nocookie.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 193) }. 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://cdn.jsdelivr.net/npm/flv.js@VERSION/dist/flv.min.js	js library	not fetched	2026-10-09	2026-10-09
https://cdn.jsdelivr.net/npm/hls.js@VERSION/dist/hls.min.js	js library	not fetched	2026-10-09	2026-10-09
https://cdnjs.cloudflare.com/ajax/libs/dashjs/VERSION/dash.all.min.js	js library	not fetched	2026-10-09	2026-10-09
https://connect.facebook.net/en_US/sdk.js	js library	not fetched	2026-10-09	2026-10-09
https://player.vimeo.com/api/player.js	js library	not fetched	2026-10-09	2026-10-09
https://static.cloudflareinsights.com/beacon.min…73b74392e4234840661791215815920	js library	not fetched	2026-10-09	2026-10-09
https://www.hachettelearning.com/sitefiles/next-…/9913-259b530c06f64717f5b7.js	js	20.5 KB	2026-10-09	2026-10-09
https://www.hachettelearning.com/sitefiles/next-…/9897-7875b014811bef7580c6.js	js	8.7 KB	2026-10-09	2026-10-09
https://www.hachettelearning.com/sitefiles/next-…/9867-45a9f899e3eac75a255a.js	js	39.7 KB	2026-10-09	2026-10-09
https://www.hachettelearning.com/sitefiles/next-…/9859-90b789735b28359cc6e3.js	js	14.7 KB	2026-10-09	2026-10-09
https://www.hachettelearning.com/sitefiles/next-…/9755-d056c378484bc725bf13.js	js	25.1 KB	2026-10-09	2026-10-09
https://www.hachettelearning.com/sitefiles/next-…/9620-cdd474ad65dd61c047c5.js	js	17.5 KB	2026-10-09	2026-10-09
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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.

2026-10-09 first crawl

5 pages, 193 files, 6 MB; 24 libraries, 5 identifiers, 33 third-party hosts
24 libraries added
- stackedboost-shopify-assets 0.2.0
- @widgetti/solara-vuetify-app 10.1.1
- @pdftron/pdfjs-express-viewer 8.7.5
- @memori.ai/memori-webcomponent 8.3.3
- @findify/bundle 7.1.108
- @clerk/ui 1.34.0
- @accusoft/pdf-viewer 3.11.158639
- antd-mobile 5.43.0
- @afosto/instant-search-widget 0.2.18
- @brainfish-ai/nudge-widget 0.1.3
- @algolia/algoliasearch-netlify-frontend 1.0.15
- tripetto-services 2.1.1
- and 12 more
5 identifiers added
- dDnRAWS84H1MY5HHS_GQXwrbodHH4tmBPn6j7Io35Gw Google site verification
- 9T-clSka_8wLS8GDf9EGTs3D563WeXJpQIpYnthKQiw Google site verification
- h5OM3aOYr5F8EVMF4cVga0JT1Knxac-jcxfw5ZDwcsI Google site verification
- XbkvoYFNrBMmTZRRE85aY0N7InH4EiDr1AiaIRZWCJY Google site verification
- h0p3b26us4gxxoh5ni9plzoy0sv3nr Facebook domain verification
33 third-party hosts added
- cmp.osano.com
- widget.trustpilot.com
- kit.fontawesome.com
- bot.leadoo.com
- static.cloudflareinsights.com
- reactjs.org
- www.w3.org
- cdn.embed.ly
- connect.facebook.net
- streamable.com
- player.vimeo.com
- www.youtube.com
- and 21 more
193 files added

Questions about hachettelearning.com

How does PageSourceSearch know what hachettelearning.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 hachettelearning.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 hachettelearning.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 hachettelearning.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.