How does PageSourceSearch know what foundx.jp 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 foundx.jp 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 foundx.jp?

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 foundx.jp?

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

foundx.jp

Built with gtm, webpack, @clerk/ui 1.34.0, mermaid 12.0.0, firebase 12.19.0, pdfjs-dist 6.3.289, bromcom-ui 2.12.3, d3 7.9.0, dashjs 5.2.1, @marimo-team/frontend 0.25.0, @fortawesome/fontawesome-svg-core 7.3.1, google-analytics and more. 5 pages and 155 stored files, last crawled 2026-10-02.

rank 456,308 51 libraries 1 identifier 42 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		2026-10-02
webpack		2026-10-02
@clerk/ui	1.34.0	2026-10-02
mermaid	12.0.0	2026-10-02
firebase	12.19.0	2026-10-02
pdfjs-dist	6.3.289	2026-10-02
bromcom-ui	2.12.3	2026-10-02
d3	7.9.0	2026-10-02
dashjs	5.2.1	2026-10-02
@marimo-team/frontend	0.25.0	2026-10-02
@fortawesome/fontawesome-svg-core	7.3.1	2026-10-02
google-analytics		2026-10-02
recaptcha		2026-10-02
@reachfive/identity-core	1.42.0	2026-10-02
@reachfive/identity-ui	2.1.0	2026-10-02
jspdf	4.2.1	2026-10-02
kore-web-sdk	11.28.1	2026-10-02
@cognigy/webchat	3.50.0	2026-10-02
google-apis		2026-10-02
hubspot		2026-10-02
html5shiv	3.7.3	2026-10-02
pdf-parse	2.4.5	2026-10-02
spectorjs	0.9.33	2026-10-02
@mermaid-js/layout-elk	1.0.0	2026-10-02
vditor	4.0.0	2026-10-02
tdesign-react	1.18.3	2026-10-02
volantis-static	0.0.1761982841160	2026-10-02
ovenplayer	0.10.54	2026-10-02
cytoscape	3.34.3	2026-10-02
graphql-playground-react	1.7.28	2026-10-02
@recogito/annotorious	2.7.14	2026-10-02
brackets-viewer	1.9.1	2026-10-02
pdf.worker	1.0.0	2026-10-02
@formio/js	5.6.1	2026-10-02
@stlite/browser	1.9.2	2026-10-02
@ant-design/x	2.9.0	2026-10-02
@prefecthq/prefab-ui	0.20.2	2026-10-02
@perceptimagery/dita-configurator	1.3.24	2026-10-02
mori-chat-widget	2.0.49	2026-10-02
@tsocial/tvweb-sdk	5.38.6	2026-10-02
cobrowse-sdk-js	3.28.7	2026-10-02
@formbird/angular-elements	8.5.10	2026-10-02
@joyfill/components	4.0.0-rc26	2026-10-02
@story-telling-reporter/react-embed-code-generator	2.2.20	2026-10-02
@zappway/embeds	2.0.28	2026-10-02
@pydantic/ai-chat-ui	2.3.0	2026-10-02
@mermaid-js/parser	2.0.0	2026-10-02
froala-editor	5.4.0	2026-09-24
tinymce	8.9.2	2026-09-24
jsoneditor	10.4.3	2026-09-24
@memori.ai/memori-webcomponent	8.3.3	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
Google Tag Manager container (Google)	GTM-MB2JXBXK	view source

Third-party hosts

Hosts outside foundx.jp 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.notion.com	connect	view source
apis.google.com	connect	view source
cdnjs.cloudflare.com	connect	view source
demo.wraptas.site	connect	view source
docs.google.com	connect	view source
example.com	connect	view source
file.notion.com	connect	view source
file.notion.so	connect	view source
firebase.googleapis.com	connect	view source
firebaseinstallations.googleapis.com	connect	view source
firebasestorage.googleapis.com	connect	view source
foo.bar	connect	view source
gist.github.com	connect	view source
github.com	connect	view source
goo.gl	connect	view source
help.x.com	connect	view source
images.unsplash.com	connect	view source
js.stripe.com	connect	view source
miro.com	connect	view source
muumuu-domain.com	connect	view source
notion.so	connect	view source
notionstyles.firebaseio.com	connect	view source
ns.adobe.com	connect	view source
prod-files-secure.s3.us-west-2.amazonaws.com	connect	view source
react-tweet.vercel.app	connect	view source
reactjs.org	connect	view source
s3-us-west-2.amazonaws.com	connect	view source
s3.us-west-2.amazonaws.com	connect	view source
securetoken.google.com	connect	view source
storage.googleapis.com	connect	view source
stripe.com	connect	view source
twitter.com	connect	view source
wraptas.com	connect	view source
www.apple.com	connect	view source
www.google-analytics.com	connect	view source
www.google.co.jp	connect	view source
www.google.com	connect	view source
www.googletagmanager.com	connect	view source
www.notion.so	connect	view source
www.w3.org	connect	view source
www.xfa.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 155) }. 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://apis.google.com/js/api.js	js library	not fetched	2026-10-02	current
https://cdnjs.cloudflare.com/ajax/libs/html5shiv…/html5shiv-printshiv.min.js	js library	not fetched	2026-10-02	current
https://cdnjs.cloudflare.com/ajax/libs/html5shiv/3.7.3/html5shiv.min.js	js library	not fetched	2026-10-02	current
https://foundx.jp/js/pdf.worker.mjs	js	1.8 MB	2026-10-02	current
https://js.hs-scripts.com/%7BhubId%7D.js	js library	not fetched	2026-10-02	current
https://www.google-analytics.com/analytics.js	js library	not fetched	2026-10-02	current
https://www.google-analytics.com/analytics_debug.js	js library	not fetched	2026-10-02	current
https://www.google.com/recaptcha/api.js	js library	not fetched	2026-10-02	current
https://www.google.com/recaptcha/enterprise.js?render=	js library	not fetched	2026-10-02	current
https://www.googletagmanager.com/gtm.js?id=	js library	not fetched	2026-10-02	current
https://foundx.jp/_next/static/chunks/9670.6a5a4295455191b4.js	js	40.1 KB	2026-10-02	current
https://foundx.jp/_next/static/chunks/9862.d5c47816326fb3a9.js	js	1.9 KB	2026-10-02	current
https://foundx.jp/_next/static/chunks/9502.651dde079a4d5658.js	js	397.2 KB	2026-10-02	current
https://foundx.jp/_next/static/chunks/9659.93b55b0fe8ced6e2.js	js	10.7 KB	2026-10-02	current
https://foundx.jp/_next/static/chunks/9297.4da645e3bfe1cd00.js	js	24.6 KB	2026-10-02	current
https://foundx.jp/_next/static/chunks/8618.899728f5feb2069d.js	js	15.7 KB	2026-10-02	current
https://foundx.jp/_next/static/chunks/9144.8294059512f2f3af.js	js	10.7 KB	2026-10-02	current
https://foundx.jp/_next/static/chunks/8617.3e2974aad19e54d2.js	js	1.9 KB	2026-10-02	current
https://foundx.jp/_next/static/chunks/8596.b3c1a556e1a9acd9.js	js	41.3 KB	2026-10-02	2026-10-02
https://foundx.jp/_next/static/chunks/8591.7c2c60ff89b73c26.js	js	158 B	2026-10-02	current
https://foundx.jp/_next/static/chunks/8337.2c7fa2f9fb53cfe4.js	js	164 B	2026-10-02	current
https://foundx.jp/_next/static/chunks/7968.118fa392f8a09b2e.js	js	1.7 KB	2026-10-02	current
https://foundx.jp/_next/static/chunks/7927.f6bf8361707a2023.js	js	38.8 KB	2026-10-02	current
https://foundx.jp/_next/static/chunks/7746.c1d74a6b18fb0a45.js	js	30.8 KB	2026-10-02	current
https://foundx.jp/_next/static/chunks/7685.c9ea2cb768d29778.js	js	165 B	2026-10-02	current
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https://foundx.jp/_next/static/chunks/7511.208fa0053259a98b.js	js	23.2 KB	2026-10-02	current
https://foundx.jp/_next/static/chunks/7148.20076389003f7afd.js	js	286 B	2026-10-02	current
https://foundx.jp/_next/static/chunks/7096.ef3f367359990f65.js	js	67 KB	2026-10-02	current
https://foundx.jp/_next/static/chunks/6897.ffd3dfaf21fdc8ff.js	js	15.5 KB	2026-10-02	current
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https://foundx.jp/_next/static/chunks/6723.2970dd7db8dad13a.js	js	8.1 KB	2026-10-02	current
https://foundx.jp/_next/static/chunks/6681.20f4e76c0ee39973.js	js	5.2 KB	2026-10-02	current
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https://foundx.jp/_next/static/chunks/6508.23b20e665c75af88.js	js	4.9 KB	2026-10-02	current
https://foundx.jp/_next/static/chunks/6446.fc516a051aca7bb3.js	js	15.6 KB	2026-10-02	current
https://foundx.jp/_next/static/chunks/6456.6675741af99e42ed.js	js	2 KB	2026-10-02	current
https://foundx.jp/_next/static/chunks/6258.c6af8cbde2eae36f.js	js	59.3 KB	2026-10-02	current
https://foundx.jp/_next/static/chunks/6222.bf9827c595e37d35.js	js	30.6 KB	2026-10-02	current
https://foundx.jp/_next/static/chunks/6125.618121ef8066699c.js	js	2.1 KB	2026-10-02	current
https://foundx.jp/_next/static/chunks/6064.0c3f6e2453eb123f.js	js	957 B	2026-10-02	current
https://foundx.jp/_next/static/chunks/5986.32f005b769d302d4.js	js	157 B	2026-10-02	current
https://foundx.jp/_next/static/chunks/5943.c61f398b3a9cf5ac.js	js	22.2 KB	2026-10-02	current
https://foundx.jp/_next/static/chunks/5939.4d3e691d428f8511.js	js	39.4 KB	2026-10-02	current
https://foundx.jp/_next/static/chunks/5775.ec572a24b784b0d1.js	js	160 B	2026-10-02	current
https://foundx.jp/_next/static/chunks/5625.4877f4893bd8f7a8.js	js	78.9 KB	2026-10-02	current
https://foundx.jp/_next/static/chunks/5266.3a1f947470684ca7.js	js	50.4 KB	2026-10-02	current
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https://foundx.jp/_next/static/Xhz3Q1NRszBPYu1HV2hDx/_ssgManifest.js	js	77 B	2026-10-02	2026-10-02
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https://foundx.jp/_next/static/chunks/7955.de8c508aac75860c.js	js	208.6 KB	2026-10-02	2026-10-02
https://foundx.jp/_next/static/chunks/7004.1240c367532e400c.js	js	8.4 KB	2026-10-02	current
https://foundx.jp/_next/static/chunks/8736.4bf8688615f2e138.js	js	21.7 KB	2026-10-02	current
https://foundx.jp/_next/static/chunks/5135.1b63bd87abd6faa8.js	js	686 KB	2026-10-02	current
https://foundx.jp/_next/static/chunks/2078.183c285be9a73f7b.js	js	14.8 KB	2026-10-02	current
https://foundx.jp/_next/static/chunks/3093.e2e030160a01f2fb.js	js	13 KB	2026-10-02	current
https://foundx.jp/_next/static/chunks/3196.115c05f0171b9f34.js	js	141.8 KB	2026-10-02	current
https://foundx.jp/_next/static/chunks/f18f7907.9e0593cfbce0026e.js	js	100.6 KB	2026-10-02	current
https://foundx.jp/_next/static/chunks/7425d6f9.3533d170f2095021.js	js	199 KB	2026-10-02	current
https://foundx.jp/_next/static/chunks/454e6ae6.f9e6837f0b34d7f7.js	js	689 B	2026-10-02	current
https://foundx.jp/_next/static/chunks/7e42aecb.515d5b9f40f43812.js	js	68.4 KB	2026-10-02	current
https://foundx.jp/_next/static/chunks/28410aa5.43ee3282d6172f1f.js	js	153.2 KB	2026-10-02	current
https://foundx.jp/_next/static/chunks/b82f7543.e756a0aef6387f5a.js	js	87.1 KB	2026-10-02	current
https://foundx.jp/_next/static/chunks/a84eb0f9.f8f1b67f9f8480cd.js	js	222.7 KB	2026-10-02	current
https://foundx.jp/_next/static/chunks/polyfills-42372ed130431b0a.js	js	110 KB	2026-10-02	current
https://foundx.jp/lite?pvs=25	html	436 KB	2026-10-02	2026-10-02
https://foundx.jp/studio	html	412 KB	2026-10-02	2026-10-02
https://foundx.jp/founders	html	443.9 KB	2026-10-02	2026-10-02
https://foundx.jp/about	html	115.8 KB	2026-10-02	2026-10-02
https://foundx.jp/	html	1.8 MB	2026-10-02	2026-10-02
https://foundx.jp/_next/static/chunks/8596.b6a6f98800a6eb1f.js	js	41.4 KB	2026-09-24	current
https://foundx.jp/_next/static/chunks/5588.b9854cb4619e30db.js	js	165.6 KB	2026-09-24	current
https://foundx.jp/_next/static/chunks/pages/[...slug]-f5d3b949c7286ee5.js	js	1.3 KB	2026-09-24	current
https://foundx.jp/_next/static/chunks/pages/%5B...slug%5D-f5d3b949c7286ee5.js	js	1.3 KB	2026-09-24	current
https://foundx.jp/_next/static/z-R-LpgrzY1u0Vu1LvgWo/_ssgManifest.js	js	77 B	2026-09-24	current
https://foundx.jp/_next/static/z-R-LpgrzY1u0Vu1LvgWo/_buildManifest.js	js	1 KB	2026-09-24	current
https://foundx.jp/_next/static/chunks/834-b5fb4fa15a950b51.js	js	72.4 KB	2026-09-24	current
https://foundx.jp/_next/static/chunks/webpack-d09549a539b56fd8.js	js	7.6 KB	2026-09-24	current
https://foundx.jp/_next/static/chunks/3134.667785189c25e29d.js	js	207.6 KB	2026-09-24	current
https://foundx.jp/_next/static/chunks/4134.13ad1f36c814df16.js	js	19.8 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, 145 files, 12.4 MB; 47 libraries, 1 identifier, 42 third-party hosts
47 libraries added
- gtm
- 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
- firebase 12.19.0
- @cognigy/webchat 3.50.0
- @formbird/angular-elements 8.5.10
- bromcom-ui 2.12.3
- and 35 more
1 identifier added
- GTM-MB2JXBXK Google Tag Manager container
42 third-party hosts added
145 files added

Questions about foundx.jp

How does PageSourceSearch know what foundx.jp 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 foundx.jp 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 foundx.jp?: 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 foundx.jp?: 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.