How does PageSourceSearch know what musiccrowns.org 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 musiccrowns.org 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 musiccrowns.org?

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 musiccrowns.org?

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

musiccrowns.org

Built with gtag, core-js-bundle 3.50.0, cloudinary-video-player 4.1.2, facebook-pixel, recaptcha, jquery-ui-dist 1.13.3, imagesloaded 5.0.0, cloudflare-insights, mdbootstrap 4.20.0, isotope-layout 3.0.6, cloudflare-email-decode, vimeo-player and more. 6 pages and 128 stored files, last crawled 2026-10-02.

rank 581,330 32 libraries 4 identifiers 18 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
gtag		2026-10-02
core-js-bundle	3.50.0	2026-10-02
cloudinary-video-player	4.1.2	2026-10-02
facebook-pixel		2026-10-02
recaptcha		2026-10-02
jquery-ui-dist	1.13.3	2026-10-02
imagesloaded	5.0.0	2026-10-02
cloudflare-insights		2026-10-02
mdbootstrap	4.20.0	2026-10-02
isotope-layout	3.0.6	2026-10-02
cloudflare-email-decode		2026-10-02
vimeo-player		2026-10-02
dygraphs	2.2.2	2026-10-02
jsxgraph	1.13.3	2026-10-02
slick-carousel-latest	1.9.0	2026-10-02
ableplayer	5.0.0	2026-10-02
amazon-connect-chatjs	5.2.0	2026-10-02
isotope-packery	2.0.1	2026-10-02
vue3-sfc-loader	0.9.5	2026-10-02
jquery.flipster	1.1.6	2026-10-02
ovenplayer	0.10.54	2026-10-02
@vitest/utils	5.0.2	2026-10-02
stackedboost-shopify-assets	0.2.0	2026-10-02
hyperformula	3.4.0	2026-10-02
gidx-js	0.6.3	2026-10-02
@grigorov-it/mazer	2.2.0	2026-10-02
@wix/image	1.454.0	2026-10-02
dompurify	3.2.6	2026-09-24
fontawesome-free	1.0.4	2026-09-24
@stlite/mountable	0.75.0	2026-09-24
@unhead/vue	3.4.1	2026-09-24
@pdftron/webviewer	12.1.0	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
Meta pixel id (Meta)	1755340278062976	view source
Google tag id (Google)	GT-TNCZPCXN	view source
reCAPTCHA site key (Google)	6LcDGtsUAAAAANnwcBijJrcoVxPcyCaQvY9DTwWQ	view source
reCAPTCHA site key (Google)	6LchfJMUAAAAAOIfByTmJWRq_xvIMbCG6KPn2D1J	view source

Third-party hosts

Hosts outside musiccrowns.org 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
cdn.pixfuture.com	script	view source
connect.facebook.net	connect	view source
embed.music.apple.com	iframe	view source
github.com	connect	view source
go.elementor.com	connect	view source
img.youtube.com	connect	view source
open.spotify.com	iframe	view source
player.vimeo.com	iframe connect	view source
served-by.pixfuture.com	script	view source
static.cloudflareinsights.com	script	view source
vimeo.com	connect	view source
www.gofundme.com	script	view source
www.google.com	script	view source
www.googletagmanager.com	script	view source
www.googletagservices.com	script	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 128) }. 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://player.vimeo.com/api/player.js	js library	not fetched	2026-10-02	current
https://static.cloudflareinsights.com/beacon.min…85bb4c19e7a9bdbcba1788362987495	js library	not fetched	2026-10-02	current
https://www.google.com/recaptcha/api.js?render=6…BijJrcoVxPcyCaQvY9DTwWQ&ver=3.0	js library	not fetched	2026-10-02	current
https://www.google.com/recaptcha/api.js?render=explicit&ver=3.33.1	js library	not fetched	2026-10-02	current
https://www.googletagmanager.com/gtag/js?id=GT-TNCZPCXN	js library	not fetched	2026-10-02	current
https://musiccrowns.org/wp-content/plugins/eleme…8e65c03029f91931d.bundle.min.js	js	12.9 KB	2026-10-02	current
https://musiccrowns.org/wp-content/plugins/eleme…99fd0b063a0032d53.bundle.min.js	js	13.7 KB	2026-10-02	current
https://musiccrowns.org/wp-content/plugins/eleme…36e8b0bacbac6105e.bundle.min.js	js	14.2 KB	2026-10-02	current
https://musiccrowns.org/wp-content/plugins/eleme…f733dc3d3b250fef4.bundle.min.js	js	7.7 KB	2026-10-02	current
https://musiccrowns.org/wp-content/plugins/eleme…987d66bcc2ade0ee6.bundle.min.js	js	13.5 KB	2026-10-02	current
https://musiccrowns.org/wp-content/plugins/eleme…463f629e2b7cbaf02.bundle.min.js	js	6.7 KB	2026-10-02	current
https://musiccrowns.org/wp-content/plugins/eleme…526f3e4a201b5fce1.bundle.min.js	js	7.4 KB	2026-10-02	current
https://musiccrowns.org/wp-content/plugins/eleme…97a097fdc5532ef4a.bundle.min.js	js	3.3 KB	2026-10-02	current
https://musiccrowns.org/wp-content/plugins/eleme…62773c21105d2c65c.bundle.min.js	js	7.5 KB	2026-10-02	current
https://musiccrowns.org/wp-content/plugins/eleme…e081cebe071d683e8.bundle.min.js	js	1.1 KB	2026-10-02	current
https://musiccrowns.org/wp-content/plugins/eleme…93824ddb3f5531ab4.bundle.min.js	js	27.6 KB	2026-10-02	current
https://musiccrowns.org/wp-content/plugins/eleme…0b5f4906bcda1dcc2.bundle.min.js	js	2.7 KB	2026-10-02	current
https://musiccrowns.org/wp-content/plugins/eleme…a95b2e4dd2a239b81.bundle.min.js	js	1.3 KB	2026-10-02	current
https://musiccrowns.org/wp-content/plugins/eleme…c81d2188312a17a17.bundle.min.js	js	8.8 KB	2026-10-02	current
https://musiccrowns.org/wp-content/plugins/eleme…f5d5e404511d68720.bundle.min.js	js	3.4 KB	2026-10-02	current
https://musiccrowns.org/wp-content/plugins/eleme…9132bbbd683277a27.bundle.min.js	js	1.8 KB	2026-10-02	current
https://musiccrowns.org/wp-content/plugins/eleme…826f355f9822b0ec0.bundle.min.js	js	6.1 KB	2026-10-02	current
https://musiccrowns.org/wp-content/plugins/eleme…d117b95956d1f28a5.bundle.min.js	js	5.1 KB	2026-10-02	current
https://musiccrowns.org/wp-content/plugins/eleme…1f1f2aa99210fa1cf.bundle.min.js	js	6.5 KB	2026-10-02	current
https://musiccrowns.org/wp-content/plugins/eleme…2d8ca449739e34f9f.bundle.min.js	js	3.4 KB	2026-10-02	current
https://musiccrowns.org/wp-content/plugins/eleme…2e75f6769dce707e2.bundle.min.js	js	4.6 KB	2026-10-02	current
https://musiccrowns.org/wp-content/plugins/eleme…65999d77832a1b764.bundle.min.js	js	2.1 KB	2026-10-02	current
https://musiccrowns.org/wp-content/plugins/eleme…93245d08246e5e540.bundle.min.js	js	7.9 KB	2026-10-02	current
https://musiccrowns.org/wp-content/plugins/eleme…1ab725f562d10dd86.bundle.min.js	js	8 KB	2026-10-02	current
https://musiccrowns.org/wp-content/plugins/eleme…d263bd937f0906192.bundle.min.js	js	1018 B	2026-10-02	current
https://musiccrowns.org/wp-content/plugins/eleme…29640cbdb48199471.bundle.min.js	js	3.8 KB	2026-10-02	current
https://musiccrowns.org/wp-content/plugins/eleme…5da34009c30cb5d70.bundle.min.js	js	7.1 KB	2026-10-02	current
https://musiccrowns.org/wp-content/plugins/eleme…984f8c96d1e053bc0.bundle.min.js	js	1.5 KB	2026-10-02	current
https://musiccrowns.org/wp-content/plugins/eleme…59265318492b89cb5.bundle.min.js	js	3.2 KB	2026-10-02	current
https://musiccrowns.org/wp-content/plugins/eleme…6f464e573feab5dd7.bundle.min.js	js	5.2 KB	2026-10-02	current
https://musiccrowns.org/wp-content/plugins/eleme…15b2ca565b152bf98.bundle.min.js	js	752 B	2026-10-02	current
https://musiccrowns.org/wp-content/plugins/eleme…1a0597c50611efdc6.bundle.min.js	js	5.1 KB	2026-10-02	current
https://musiccrowns.org/wp-content/plugins/eleme…7ccfe024bea61e651.bundle.min.js	js	14.1 KB	2026-10-02	current
https://musiccrowns.org/wp-content/plugins/eleme…e1c07b9901f53d709.bundle.min.js	js	5.8 KB	2026-10-02	current
https://musiccrowns.org/wp-content/plugins/eleme…55747203b48a65a24.bundle.min.js	js	19.3 KB	2026-10-02	current
https://musiccrowns.org/wp-content/plugins/eleme…3ed75928eff79cb95.bundle.min.js	js	2.8 KB	2026-10-02	current
https://musiccrowns.org/wp-content/plugins/eleme…e688751d29d07a8d3.bundle.min.js	js	2.6 KB	2026-10-02	current
https://musiccrowns.org/wp-content/plugins/eleme…0fca501cb18163600.bundle.min.js	js	4.9 KB	2026-10-02	current
https://musiccrowns.org/wp-content/plugins/eleme…6e5df1a1527329fde.bundle.min.js	js	6.8 KB	2026-10-02	current
https://musiccrowns.org/wp-content/plugins/eleme…9d6fa482515df23f8.bundle.min.js	js	7.6 KB	2026-10-02	current
https://musiccrowns.org/wp-content/plugins/eleme…cdda9737c272489fc.bundle.min.js	js	5.1 KB	2026-10-02	current
https://musiccrowns.org/wp-content/plugins/eleme…30d6eecb5ebc8afbd.bundle.min.js	js	2 KB	2026-10-02	current
https://musiccrowns.org/wp-content/plugins/eleme…6b2d81686a5392236.bundle.min.js	js	22.7 KB	2026-10-02	current
https://musiccrowns.org/wp-content/plugins/eleme…64e46173f50701949.bundle.min.js	js	871 B	2026-10-02	current
https://musiccrowns.org/wp-content/plugins/eleme…c41acbc73cb741e9d.bundle.min.js	js	22.1 KB	2026-10-02	current
https://musiccrowns.org/wp-content/plugins/eleme…ddbc842a50347c9ab.bundle.min.js	js	468 B	2026-10-02	current
https://musiccrowns.org/wp-content/plugins/eleme…48b2e79bf0ef22bb3.bundle.min.js	js	4.2 KB	2026-10-02	current
https://musiccrowns.org/wp-content/plugins/eleme…fedef32043348b99b.bundle.min.js	js	1.7 KB	2026-10-02	current
https://musiccrowns.org/wp-content/plugins/eleme…ab872da118940910d.bundle.min.js	js	449 B	2026-10-02	current
https://musiccrowns.org/wp-content/plugins/eleme…ce3d8a908f0ef65fe.bundle.min.js	js	9.4 KB	2026-10-02	current
https://musiccrowns.org/wp-content/plugins/eleme…2e3f9ce3b8b1e4b74.bundle.min.js	js	1.3 KB	2026-10-02	current
https://musiccrowns.org/wp-content/plugins/eleme…aa53373b56d3bab67.bundle.min.js	js	8.3 KB	2026-10-02	current
https://musiccrowns.org/wp-content/plugins/eleme…d06d17cea5cebdb61.bundle.min.js	js	7.7 KB	2026-10-02	current
https://musiccrowns.org/wp-content/plugins/eleme…d0220ce8c38404e7e.bundle.min.js	js	8.5 KB	2026-10-02	current
https://musiccrowns.org/wp-content/plugins/eleme…8596f3e9b2366fb81.bundle.min.js	js	9.5 KB	2026-10-02	current
https://musiccrowns.org/wp-content/plugins/eleme…69387c6e374e093ed.bundle.min.js	js	11.1 KB	2026-10-02	current
https://musiccrowns.org/wp-content/plugins/eleme…24cb6e5dc9de86abd.bundle.min.js	js	326 B	2026-10-02	current
https://musiccrowns.org/wp-content/plugins/eleme…09661e409413f1cef.bundle.min.js	js	1.3 KB	2026-10-02	current
https://musiccrowns.org/wp-content/plugins/eleme…7d20b95b33386757b.bundle.min.js	js	408 B	2026-10-02	current
https://musiccrowns.org/wp-content/plugins/eleme…44e46e43d0807e708.bundle.min.js	js	3.1 KB	2026-10-02	current
https://musiccrowns.org/wp-content/plugins/eleme…77a3ef4785d3dfbc5.bundle.min.js	js	3.7 KB	2026-10-02	current
https://musiccrowns.org/wp-content/plugins/eleme…44b05d8d1ea0702bc.bundle.min.js	js	3.6 KB	2026-10-02	current
https://musiccrowns.org/wp-content/plugins/eleme…083b809812c0e3aa1.bundle.min.js	js	789 B	2026-10-02	current
https://musiccrowns.org/wp-content/plugins/eleme…35f45aaa79d244f24.bundle.min.js	js	906 B	2026-10-02	current
https://musiccrowns.org/wp-content/plugins/eleme…c1d522ef5c60bf874.bundle.min.js	js	618 B	2026-10-02	current
https://musiccrowns.org/wp-content/plugins/eleme…db5058afeb74622f5.bundle.min.js	js	3.7 KB	2026-10-02	current
https://musiccrowns.org/wp-content/plugins/eleme…d5a983a56266562f3.bundle.min.js	js	25.8 KB	2026-10-02	current
https://musiccrowns.org/wp-content/plugins/eleme…99e507b570f6b0496.bundle.min.js	js	28.2 KB	2026-10-02	current
https://musiccrowns.org/wp-content/plugins/the-p…?ver=6.4.11790924531	js	2.7 KB	2026-10-02	2026-10-02
https://musiccrowns.org/cdn-cgi/scripts/5c5dd728…/email-decode.min.js	js	1.2 KB	2026-10-02	current
https://musiccrowns.org/wp-content/plugins/the-p…?ver=6.4.11790924528	js	2.7 KB	2026-10-02	2026-10-02
https://musiccrowns.org/wp-content/plugins/the-p…?ver=6.4.11790924526	js	2.7 KB	2026-10-02	2026-10-02
https://musiccrowns.org/wp-content/plugins/the-p…?ver=6.4.11790924524	js	2.7 KB	2026-10-02	2026-10-02
https://musiccrowns.org/wp-content/plugins/eleme…ents-handlers.min.js?ver=3.33.1	js	43.2 KB	2026-10-02	current
https://musiccrowns.org/wp-content/plugins/eleme…/js/frontend.min.js?ver=3.33.1	js	23.5 KB	2026-10-02	current
https://musiccrowns.org/wp-content/plugins/eleme…k-pro.runtime.min.js?ver=3.33.1	js library	6.1 KB	2026-10-02	current
https://musiccrowns.org/wp-content/plugins/googl…-form-7-40476021fb6e59177033.js	js	5.1 KB	2026-10-02	current
https://musiccrowns.org/wp-content/plugins/conta…/recaptcha/index.js?ver=6.1.3	js	934 B	2026-10-02	current
https://musiccrowns.org/wp-includes/js/dist/vendor/wp-polyfill.min.js?ver=3.15.0	js	40.3 KB	2026-10-02	current
https://musiccrowns.org/wp-content/plugins/eleme…/js/frontend.min.js?ver=3.33.1	js	31.1 KB	2026-10-02	current
https://musiccrowns.org/wp-includes/js/imagesloaded.min.js?ver=5.0.0	js	5.4 KB	2026-10-02	current
https://musiccrowns.org/wp-content/plugins/eleme…ntend-modules.min.js?ver=3.33.1	js	72 KB	2026-10-02	current
https://musiccrowns.org/wp-content/plugins/eleme…bpack.runtime.min.js?ver=3.33.1	js library	5.5 KB	2026-10-02	current
https://musiccrowns.org/wp-content/themes/hello-…/js/hello-frontend.js?ver=3.4.5	js	1.8 KB	2026-10-02	current
https://musiccrowns.org/wp-includes/js/jquery/jquery.ui.touch-punch.js?ver=0.2.2	js	1.2 KB	2026-10-02	current
https://musiccrowns.org/wp-includes/js/jquery/ui/draggable.min.js?ver=1.13.3	js library	18 KB	2026-10-02	current
https://musiccrowns.org/wp-content/plugins/thepl…s-listing.min.js?ver=1790899606	js	3.1 KB	2026-10-02	2026-10-02
https://musiccrowns.org/wp-content/plugins/thepl…g-listing.min.js?ver=1790899606	js	1 KB	2026-10-02	2026-10-02
https://musiccrowns.org/wp-content/plugins/thepl…mode.pkgd.min.js?ver=1790899606	js	13.3 KB	2026-10-02	2026-10-02
https://musiccrowns.org/wp-content/plugins/thepl…/isotope.pkgd.js?ver=1790899606	js	34.5 KB	2026-10-02	2026-10-02
https://musiccrowns.org/wp-content/plugins/thepl…aded.pkgd.min.js?ver=1790899606	js	5.4 KB	2026-10-02	2026-10-02
https://musiccrowns.org/wp-content/plugins/thepl…-carousel.min.js?ver=1790899606	js	11 KB	2026-10-02	2026-10-02
https://musiccrowns.org/wp-content/plugins/thepl…/slick.min.js?ver=1790899606	js	42.5 KB	2026-10-02	2026-10-02
https://musiccrowns.org/wp-includes/js/jquery/ui/slider.min.js?ver=1.13.3	js library	10.5 KB	2026-10-02	current
https://musiccrowns.org/wp-includes/js/jquery/ui/core.min.js?ver=1.13.3	js library	21 KB	2026-10-02	current
https://musiccrowns.org/wp-includes/js/jquery/ui/mouse.min.js?ver=1.13.3	js library	3.3 KB	2026-10-02	current
https://musiccrowns.org/wp-content/plugins/the-p…?ver=6.4.11790924517	js	2.7 KB	2026-10-02	2026-10-02
https://musiccrowns.org/wp-content/plugins/wpcf7…?ver=2c532d7e2be36f6af233	js	4 KB	2026-10-02	current
https://musiccrowns.org/wp-content/plugins/conta…/includes/js/index.js?ver=6.1.3	js	13.1 KB	2026-10-02	current
https://musiccrowns.org/wp-content/plugins/conta…/swv/js/index.js?ver=6.1.3	js	12.2 KB	2026-10-02	current
https://musiccrowns.org/wp-includes/js/dist/i18n.min.js?ver=5e580eb46a90c2b997e6	js	8.9 KB	2026-10-02	current
https://musiccrowns.org/wp-includes/js/dist/hook…?ver=4d63a3d491d11ffd8ac6	js	4.7 KB	2026-10-02	current
https://musiccrowns.org/wp-content/plugins/eleme…/js/v4-shims.min.js?ver=3.33.1	js	14.7 KB	2026-10-02	current
https://musiccrowns.org/wp-includes/js/jquery/jquery-migrate.min.js?ver=3.4.1	js	13.3 KB	2026-10-02	current
https://musiccrowns.org/wp-includes/js/jquery/jquery.min.js?ver=3.7.1	js library	85.5 KB	2026-10-02	current
https://musiccrowns.org/contact/	html	80.5 KB	2026-10-02	2026-10-02
https://musiccrowns.org/about-us/	html	80.1 KB	2026-10-02	2026-10-02
https://musiccrowns.org/featured-post/fede-spame…rodi-on-body-on-the-dancefloor/	html	95.5 KB	2026-10-02	2026-10-02
https://musiccrowns.org/category/news/	html	142.4 KB	2026-10-02	2026-10-02
https://musiccrowns.org/	html	149.7 KB	2026-10-02	2026-10-02
https://musiccrowns.org/wp-content/plugins/the-p…?ver=6.4.11790282013	js	2.7 KB	2026-09-24	current
https://musiccrowns.org/wp-content/plugins/the-p…?ver=6.4.11790282012	js	2.7 KB	2026-09-24	current
https://musiccrowns.org/wp-content/plugins/the-p…?ver=6.4.11790282011	js	2.7 KB	2026-09-24	current
https://musiccrowns.org/wp-content/plugins/the-p…?ver=6.4.11790282010	js	2.7 KB	2026-09-24	current
https://musiccrowns.org/wp-content/plugins/thepl…s-listing.min.js?ver=1790088948	js	3.1 KB	2026-09-24	current
https://musiccrowns.org/wp-content/plugins/thepl…g-listing.min.js?ver=1790088948	js	1 KB	2026-09-24	current
https://musiccrowns.org/wp-content/plugins/thepl…mode.pkgd.min.js?ver=1790088948	js	13.3 KB	2026-09-24	current
https://musiccrowns.org/wp-content/plugins/thepl…/isotope.pkgd.js?ver=1790088948	js	34.5 KB	2026-09-24	current
https://musiccrowns.org/wp-content/plugins/thepl…aded.pkgd.min.js?ver=1790088948	js	5.4 KB	2026-09-24	current
https://musiccrowns.org/wp-content/plugins/thepl…-carousel.min.js?ver=1790088948	js	11 KB	2026-09-24	current
https://musiccrowns.org/wp-content/plugins/thepl…/slick.min.js?ver=1790088948	js	42.5 KB	2026-09-24	current
https://musiccrowns.org/wp-content/plugins/the-p…?ver=6.4.11790281603	js	2.7 KB	2026-09-24	current
https://musiccrowns.org/featured-post/squirrel-n…otel-that-inspired-the-shining/	html	97.6 KB	2026-09-24	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.

2026-10-02 first crawl

5 pages, 115 files, 1.5 MB; 27 libraries, 4 identifiers, 18 third-party hosts
27 libraries added
- @vitest/utils 5.0.2
- gtag
- facebook-pixel
- recaptcha
- stackedboost-shopify-assets 0.2.0
- cloudflare-email-decode
- jquery.flipster 1.1.6
- @grigorov-it/mazer 2.2.0
- jsxgraph 1.13.3
- amazon-connect-chatjs 5.2.0
- jquery-ui-dist 1.13.3
- dygraphs 2.2.2
- and 15 more
4 identifiers added
- GT-TNCZPCXN Google tag id
- 1755340278062976 Meta pixel id
- 6LcDGtsUAAAAANnwcBijJrcoVxPcyCaQvY9DTwWQ reCAPTCHA site key
- 6LchfJMUAAAAAOIfByTmJWRq_xvIMbCG6KPn2D1J reCAPTCHA site key
19 third-party hosts added
115 files added

Questions about musiccrowns.org

How does PageSourceSearch know what musiccrowns.org 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 musiccrowns.org 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 musiccrowns.org?: 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 musiccrowns.org?: 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.