How does PageSourceSearch know what vis4.net 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 vis4.net 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 vis4.net?

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 vis4.net?

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

vis4.net

Built with @playpilot/tpi 8.40.0, cloudflare-insights, cloudflare-email-decode, @vitest/utils 5.0.2, @beyonk/gdpr-cookie-consent-banner 16.0.2. 5 pages and 201 stored files, last crawled 2026-10-02.

rank 395,112 5 libraries 0 identifiers 278 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
@playpilot/tpi	8.40.0	2026-10-02
cloudflare-insights		2026-10-02
cloudflare-email-decode		2026-10-02
@vitest/utils	5.0.2	2026-10-02
@beyonk/gdpr-cookie-consent-banner	16.0.2	2026-10-02

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 vis4.net 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
24.media.tumblr.com	connect	view source
addons.mozilla.org	connect	view source
ai2html.org	connect	view source
api.flattr.com	connect	view source
api.twitter.com	connect	view source
app.raw.densitydesign.org	connect	view source
aroman.github.io	connect	view source
aspmap.net	connect	view source
benfry.com	connect	view source
bitbucket.org	connect	view source
bl.ocks.org	connect	view source
blog.datawrapper.de	connect	view source
blog.disqus.com	connect	view source
blog.ffctn.com	connect	view source
blog.live-map.de	connect	view source
blog.nitriq.com	connect	view source
blog.usabilla.com	connect	view source
blog.zeit.de	connect	view source
buble.surge.sh	connect	view source
cartography.oregonstate.edu	connect	view source
cgm.cs.mcgill.ca	connect	view source
chandoo.org	connect	view source
class.coursera.org	connect	view source
clients.driven-by-data.net	connect	view source
code.google.com	connect	view source
colorbrewer2.com	connect	view source
colorbrewer2.org	connect	view source
colororacle.cartography.ch	connect	view source
complexdiagrams.com	connect	view source
coralproject.net	connect	view source
coursera.org	connect	view source
d3js.org	connect	view source
datadrivenjournalism.net	connect	view source
dataset.readthedocs.org	connect	view source
dataset.rtfd.org	connect	view source
datawrapper.de	connect	view source
davidad.net	connect	view source
dbeaver.jkiss.org	connect	view source
de.guttenplag.wikia.com	connect	view source
de.wikipedia.org	connect	view source
designshack.net	connect	view source
dev.piwik.org	connect	view source
dev.twitter.com	connect	view source
developer.mozilla.org	connect	view source
developers.google.com	connect	view source
dict.leo.org	connect	view source
dimap.de	connect	view source
disqus.com	connect	view source
disturbmedia.com	connect	view source
dogshirt.org	connect	view source
download.geonames.org	connect	view source
downloads.cloudmade.com	connect	view source
driven-by-data.net	connect	view source
eagereyes.org	connect	view source
elementary.io	connect	view source
en.wikipedia.org	connect	view source
epp.eurostat.ec.europa.eu	connect	view source
example.com	connect	view source
fathom.info	connect	view source
finder.geocommons.com	connect	view source
flattr.com	connect	view source
forum.processing.org	connect	view source
forum.worldwindcentral.com	connect	view source
forums.aaca.org	connect	view source
gadm.org	connect	view source
gephi.org	connect	view source
gerdarntz.com	connect	view source
gist.github.com	connect	view source
gist.githubusercontent.com	connect	view source
github.com	connect	view source
gka.github.io	connect	view source
hci.stanford.edu	connect	view source
hexo.io	connect	view source
i.imgur.com	connect	view source
iconmonstr.com	connect	view source
indiemaps.com	connect	view source
infosthetics.com	connect	view source
infovis.uni-konstanz.de	connect	view source
ire.org	connect	view source
jiminy.medialab.sciences-po.fr	connect	view source
jsfiddle.net	connect	view source
kartograph.org	connect	view source
keybase.io	connect	view source
kit.svelte.dev	connect	view source
labs.adobe.com	connect	view source
leafletjs.com	connect	view source
leebyron.com	connect	view source
lh6.googleusercontent.com	connect	view source
linuxconfig.org	connect	view source
live-map.de	connect	view source
livedocs.adobe.com	connect	view source
local.wasp.uwa.edu.au	connect	view source
magnaview.nl	connect	view source
makingmaps.net	connect	view source
mapnik.org	connect	view source
maps.unomaha.edu	connect	view source
mapshaper.org	connect	view source
medium.com	connect	view source
michelf.com	connect	view source
migrationsmap.net	connect	view source
mike.verdone.ca	connect	view source
mirkolorenz.com	connect	view source
mirror.hmc.edu	connect	view source
mkweb.bcgsc.ca	connect	view source
modestmaps.com	connect	view source
motiondraw.com	connect	view source
mycarta.wordpress.com	connect	view source
new.tinygrab.com	connect	view source
nytimes.com	connect	view source
offenedaten.de	connect	view source
openflashmaps.org	connect	view source
openlayers.org	connect	view source
openspending.org	connect	view source
openstreetmap.org	connect	view source
openstreetmaps.org	connect	view source
oreilly.com	connect	view source
ozviz.wasp.uwa.edu.au	connect	view source
p5js.org	connect	view source
packages.python.org	connect	view source
paperjs.org	connect	view source
passportjs.org	connect	view source
people.oregonstate.edu	connect	view source
piwik.org	connect	view source
player.vimeo.com	connect	view source
polygon.origo.ethz.ch	connect	view source
polymaps.org	connect	view source
posativ.org	connect	view source
probberechts.github.io	connect	view source
processing.googlecode.com	connect	view source
processing.org	connect	view source
proj4js.org	connect	view source
quartz.github.io	connect	view source
quasipartikel.at	connect	view source
r-project.org	connect	view source
raphaeljs.com	connect	view source
raw.github.com	connect	view source
rollupjs.org	connect	view source
schema.org	connect	view source
schnack.cool	connect	view source
schnack.youdomain.com	connect	view source
search.twitter.com	connect	view source
shancarter.github.io	connect	view source
softsurfer.com	connect	view source
spatialreference.org	connect	view source
static.cloudflareinsights.com	script	view source
statmath.wu.ac.at	connect	view source
stephanieevergreen.com	connect	view source
support.microsoft.com	connect	view source
svelte.dev	connect	view source
svelteplot.dev	connect	view source
thedailyviz.com	connect	view source
thenounproject.com	connect	view source
tilestache.org	connect	view source
trac.osgeo.org	connect	view source
tristen.ca	connect	view source
twitter.com	connect	view source
unpkg.com	connect	view source
upload.wikimedia.org	connect	view source
us.posterxxl.com	connect	view source
v8.googlecode.com	connect	view source
vallandingham.me	connect	view source
vimeo.com	connect	view source
vis.berkeley.edu	connect	view source
vis.social	connect	view source
vischeck.com	connect	view source
visualisiert.es	connect	view source
visualisiert.net	connect	view source
wboykinm.github.io	connect	view source
web.archive.org	connect	view source
webkid.io	connect	view source
well-formed-data.net	connect	view source
wiki.gnome.org	connect	view source
wordle.net	connect	view source
wordpress.org	connect	view source
www-genesis.destatis.de	connect	view source
www.abgeordnetenwatch.de	connect	view source
www.adobe.com	connect	view source
www.albany.edu	connect	view source
www.alfredapp.com	connect	view source
www.amazon.co.uk	connect	view source
www.amazon.com	connect	view source
www.amnesty.de	connect	view source
www.amnesty.org	connect	view source
www.apache.org	connect	view source
www.bundestag.de	connect	view source
www.buzzware.com.au	connect	view source
www.castorticker.de	connect	view source
www.census.gov	connect	view source
www.colororacle.org	connect	view source
www.colour-blindness.com	connect	view source
www.cs.sunysb.edu	connect	view source
www.csiss.org	connect	view source
www.datawrapper.de	connect	view source
www.datenjournalist.de	connect	view source
www.destatis.de	connect	view source
www.driven-by-data.net	connect	view source
www.edwardtufte.com	connect	view source
www.emnid.de	connect	view source
www.excelcharts.com	connect	view source
www.facebook.com	connect	view source
www.fastcodesign.com	connect	view source
www.flashmap.org	connect	view source
www.flickr.com	connect	view source
www.forbes.com	connect	view source
www.forsa.com	connect	view source
www.forschungsgruppe.de	connect	view source
www.freitag.de	connect	view source
www.geoip.co.uk	connect	view source
www.gerdarntz.org	connect	view source
www.globalization-group.com	connect	view source
www.google.com	connect	view source
www.guardian.co.uk	connect	view source
www.heute.de	connect	view source
www.howtogeek.com	connect	view source
www.informationisbeautiful.net	connect	view source
www.informationplusconference.com	connect	view source
www.internetworldstats.com	connect	view source
www.janitor61.com	connect	view source
www.jasondavies.com	connect	view source
www.javainc.com	connect	view source
www.jhlabs.com	connect	view source
www.live-map.de	connect	view source
www.lostinactionscript.com	connect	view source
www.mapbox.com	connect	view source
www.maxmind.com	connect	view source
www.mccarroll.net	connect	view source
www.metoffice.gov.uk	connect	view source
www.mnn.ch	connect	view source
www.mozilla.org	connect	view source
www.naturalearthdata.com	connect	view source
www.niemanlab.org	connect	view source
www.nkb.fr	connect	view source
www.nosle.com	connect	view source
www.nytimes.com	connect	view source
www.openflashmaps.org	connect	view source
www.openstreetmap.org	connect	view source
www.ovgu.de	connect	view source
www.paypal.com	connect	view source
www.perceptualedge.com	connect	view source
www.phpclasses.org	connect	view source
www.physics.drexel.edu	connect	view source
www.piwik.org	connect	view source
www.politik-kommunikation.de	connect	view source
www.processing.org	connect	view source
www.qgis.org	connect	view source
www.r-project.org	connect	view source
www.radicalcartography.net	connect	view source
www.readwriteweb.com	connect	view source
www.reddit.com	connect	view source
www.robertpenner.com	connect	view source
www.rstudio.com	connect	view source
www.scribd.com	connect	view source
www.spiegel.de	connect	view source
www.sqlalchemy.org	connect	view source
www.sueddeutsche.de	connect	view source
www.swf2avi.net	connect	view source
www.theverge.com	connect	view source
www.uni-graz.at	connect	view source
www.urbandictionary.com	connect	view source
www.vdstech.com	connect	view source
www.viewsoftheworld.net	connect	view source
www.virtualdub.org	connect	view source
www.vischeck.com	connect	view source
www.visualisingdata.com	connect	view source
www.visup.it	connect	view source
www.w3.org	connect	view source
www.wahlrecht.de	connect	view source
www.washingtonpost.com	connect	view source
www.webglearth.com	connect	view source
www.websitegoodies.com	connect	view source
www.welt.de	connect	view source
www.whatwg.org	connect	view source
www.youtube.com	connect	view source
www.zeit.de	connect	view source
www.zimmi.cz	connect	view source
www2.dcs.hull.ac.uk	connect	view source
wwwisg.cs.uni-magdeburg.de	connect	view source
zillow.com	connect	view source

Stored pages and scripts

The newest stored version of each file, newest first@if (p.FilesTruncated) { (the 500 newest of 201) }. 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://static.cloudflareinsights.com/beacon.min…85bb4c19e7a9bdbcba1788362987495	js library	not fetched	2026-10-02	current
http://www.vis4.net/blog/_app/immutable/chunks/B1vzrRjz.js	js	3.2 KB	2026-10-02	current
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http://www.vis4.net/blog/_app/immutable/chunks/DTmD4sZZ.js	js	877 B	2026-10-02	current
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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.

2026-10-02 first crawl

5 pages, 201 files, 1.5 MB; 5 libraries, 0 identifiers, 278 third-party hosts
5 libraries added
- cloudflare-email-decode
- @vitest/utils 5.0.2
- @beyonk/gdpr-cookie-consent-banner 16.0.2
- @playpilot/tpi 8.40.0
- cloudflare-insights
278 third-party hosts added
- static.cloudflareinsights.com
- example.com
- svelte.dev
- www.w3.org
- unpkg.com
- kit.svelte.dev
- svelteplot.dev
- www.datawrapper.de
- github.com
- schnack.cool
- driven-by-data.net
- nytimes.com
- and 266 more
201 files added

Questions about vis4.net

How does PageSourceSearch know what vis4.net 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 vis4.net 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 vis4.net?: 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 vis4.net?: 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.