Interwiki map

←Requests and proposals

Interwiki map

The Interwiki map charts interwiki link prefixes, and is stored in the interwiki.php file (see Help:Interwiki linking). If you wish to propose a new prefix, please do so on the talk page. Remember to specify why the prefix would be useful on a significant number of pages on Wikimedia Foundation projects. Note that any Fandom project can be reached using [[wikia:Projectname:Article name]].

Administrators can edit the interwiki map in a JSON format at Interwiki map/list. They should remember that the prefix cannot contain spaces ( ), colons (:), ampersands (&), or equal signs (=). Interwiki map entries should generally not conflict with language codes, even if the language in question does not have any Wikimedia projects yes, but a few legacy codes too. Language codes and short forms of project codes (en:, es:, w:, c:, etc.) are handled automatically and do not need to be added here, but long forms of project codes (wikipedia:, Wikibooks:, etc.) do need to be added here. None of the letters in the prefixes are case sensitive.

When removing or updating a prefix, also check if it's in interwiki.list (the default interwikis added by the installer when a new MediaWiki wiki is installed). That file is managed via Gerrit.

A script copies the list below into the interwiki.php file fairly regularly (usually once in several months).

Last known interwiki cache update: November 6, 2024, current interwiki data can be found at Special:Interwiki.

Current interwiki map

Prefix	_target URL
acronym	https://www.acronymfinder.com/$1.html
Advisory	https://advisory.wikimedia.org/wiki/$1
antwiki	https://antwiki.org/wiki/$1
Appropedia	https://www.appropedia.org/$1
AquariumWiki	https://www.theaquariumwiki.com/$1
Arborwiki	https://localwiki.org/ann-arbor/$1
arxiv	https://arxiv.org/abs/$1
BattlestarWiki	https://en.battlestarwiki.org/$1
BCNbio	https://www.bcn.cl/historiapolitica/resenas_parlamentarias/wiki/$1
Beacha	https://www.beachapedia.org/$1
betawiki	https://translatewiki.net/wiki/$1
betawikiversity	https://beta.wikiversity.org/wiki/$1
bibcode	https://ui.adsabs.harvard.edu/abs/$1/abstract
bibliowiki	https://meta.wikimedia.org/wiki/Interwiki_map/discontinued#Wikilivres
Botwiki	https://meta.wikimedia.org/wiki/Interwiki_map/discontinued#Botwiki
Boxrec	https://boxrec.com/en/boxer/$1
bugzilla	https://bugzilla.wikimedia.org/show_bug.cgi?id=$1
bulba	https://bulbapedia.bulbagarden.net/wiki/$1
C2	https://wiki.c2.com/?$1
ccorg	https://creativecommons.org/$1
Cache	https://meta.wikimedia.org/wiki/Interwiki_map/discontinued#Google_Cache
CentralWikia	https://community.fandom.com/wiki/$1
ChoralWiki	https://www.cpdl.org/wiki/index.php/$1
Citizendium	https://en.citizendium.org/wiki/$1
Commons	https://commons.wikimedia.org/wiki/$1
CommunityWiki	https://communitywiki.org/$1
comune	https://rete.comuni-italiani.it/wiki/$1
CreativeCommons	//creativecommons.org/licenses/$1
CreativeCommonsWiki	https://wiki.creativecommons.org/$1
dbdump	https://dumps.wikimedia.org/$1/latest/
DCDatabase	https://dc.fandom.com/$1
debian	https://wiki.debian.org/$1
Devmo	https://developer.mozilla.org/docs/$1
dico	//dicoado.org/dico/$1
dicoado	//fr.dicoado.org/dico/$1
Dict	https://www.dict.org/bin/Dict?Database=*&Form=Dict1&Strategy=*&Query=$1
Dictionary	https://www.dict.org/bin/Dict?Database=*&Form=Dict1&Strategy=*&Query=$1
DiffBlog	https://diff.wikimedia.org/$1
discord	https://discord.com/$1
Disinfopedia	https://sourcewatch.org/index.php/$1
dmoz	https://curlie.org/$1
dmozs	https://curlie.org/search?q=$1
DOI	//doi.org/$1
Donate	https://donate.wikimedia.org/wiki/$1
doom_wiki	https://doom.fandom.com/wiki/$1
download	https://releases.wikimedia.org/$1
DPD	https://www.rae.es/dpd/$1
dpla	https://dp.la/item/$1
DRAE	https://dle.rae.es/?w=$1
ELibre	http://enciclopedia.us.es/index.php/$1
EmacsWiki	https://www.emacswiki.org/emacs?$1
Encyc	https://encyc.org/wiki/$1
englyphwiki	https://en.glyphwiki.org/wiki/$1
enkol	https://enkol.pl/$1
Esolang	https://esolangs.org/wiki/$1
Etherpad	https://etherpad.wikimedia.org/$1
Ethnologue	//www.ethnologue.com/language/$1
EthnologueFamily	//www.ethnologue.com/show_family.asp?subid=$1
exkcd	https://www.explainxkcd.com/wiki/index.php/$1
Exotica	https://www.exotica.org.uk/wiki/$1
FanimutationWiki	https://wiki.animutationportal.com/index.php/$1
Fedora	//fedoraproject.org/wiki/$1
FinalFantasy	https://finalfantasy.fandom.com/wiki/$1
Finnix	https://www.finnix.org/$1
FlickrPhoto	//www.flickr.com/photo.gne?id=$1
FlickrUser	//www.flickr.com/people/$1
Foldoc	https://foldoc.org/$1
Foundation	https://foundation.wikimedia.org/wiki/$1
FoundationSite	https://wikimediafoundation.org/$1
FreeBSDman	https://www.FreeBSD.org/cgi/man.cgi?apropos=1&query=$1
Freedomdefined	https://freedomdefined.org/$1
freenode	https://meta.wikimedia.org/wiki/Interwiki_map/discontinued#freenode
FreeSoft	//directory.fsf.org/wiki/$1
Gardenology	https://www.gardenology.org/wiki/$1
Gentoo	//wiki.gentoo.org/wiki/$1
GenWiki	https://wiki.genealogy.net/index.php/$1
Gerrit	https://gerrit.wikimedia.org/r/$1
Git	https://gerrit.wikimedia.org/g/$1
gitlab	https://gitlab.wikimedia.org/$1
globalcontribs	https://guc.toolforge.org/?user=$1
glottolog	https://glottolog.org/glottolog?iso=$1
glottopedia	http://glottopedia.org/index.php/$1
Google	//www.google.com/search?q=$1
GoogleDefine	//www.google.com/search?q=define:$1
GoogleGroups	//groups.google.com/groups?q=$1
gucprefix	https://guc.toolforge.org/?isPrefixPattern=1&src=rc&user=$1
GuildWarsWiki	https://wiki.guildwars.com/wiki/$1
gutenberg	https://www.gutenberg.org/ebooks/$1
gutenbergwiki	https://meta.wikimedia.org/w/index.php?title=Interwiki_map/discontinued#Gutenbergwiki
Hackerspaces	https://wiki.hackerspaces.org/$1
HammondWiki	https://www.dairiki.org/HammondWiki/$1
hdl	https://hdl.handle.net/$1
heraldik	https://heraldik-wiki.de/wiki/$1
horizonlabs	https://horizon.wikimedia.org/$1
HRFWiki	http://fanstuff.hrwiki.org/index.php/$1
HRWiki	http://www.hrwiki.org/index.php/$1
IArchive	//archive.org/details/$1
IMDbCompany	https://www.imdb.com/company/co$1/
IMDbName	https://www.imdb.com/name/nm$1/
IMDbTitle	https://www.imdb.com/title/tt$1/
Incubator	https://incubator.wikimedia.org/wiki/$1
infosphere	https://theinfosphere.org/$1
IRC	irc://irc.libera.chat/$1
ircrc	irc://irc.wikimedia.org/$1
ircs	ircs://irc.libera.chat/$1
isni	https://isni.org/isni/$1
ISO639-3	https://iso639-3.sil.org/code/$1
ISSN	https://www.worldcat.org/issn/$1
Iuridictum	https://iuridictum.pecina.cz/w/$1
jaglyphwiki	https://glyphwiki.org/wiki/$1
Jira	https://jira.toolserver.org/browse/$1
JSTOR	https://www.jstor.org/journals/$1
Kamelo	http://kamelopedia.net/wiki/$1
Karlsruhe	https://ka.stadtwiki.net/$1
KomicaWiki	//wiki.komica.org/?$1
lexemes	https://www.wikidata.org/w/index.php?search=$1&ns146=1
LiberaChat	ircs://irc.libera.chat/$1
LibrePlanet	//libreplanet.org/wiki/$1
LinguaLibre	//lingualibre.org/wiki/$1
LinguistList	//linguistlist.org/forms/langs/LLDescription.cfm?code=$1
listarchive	https://lists.wikimedia.org/hyperkitty/$1
Livepedia	http://www.livepedia.gr/index.php?title=$1
LocalWiki	https://localwiki.org/$1
Lofc	https://id.loc.gov/authorities/$1
Lojban	https://mw.lojban.org/papri/$1
lokalhistoriewiki	https://lokalhistoriewiki.no/wiki/$1
Lostpedia	https://lostpedia.fandom.com/wiki/$1
Luxo	https://guc.toolforge.org/?user=$1
Mail	https://lists.wikimedia.org/postorius/lists/$1.lists.wikimedia.org/
mailarchive	https://lists.wikimedia.org/pipermail/$1
Mariowiki	https://www.mariowiki.com/$1
MarvelDatabase	https://marvel.fandom.com/wiki/$1
mdwiki	https://mdwiki.org/wiki/$1
MeatBall	http://meatballwiki.org/wiki/$1
MediaWikiWiki	https://www.mediawiki.org/wiki/$1
MediaZilla	https://bugzilla.wikimedia.org/$1
MemoryAlpha	https://memory-alpha.fandom.com/wiki/$1
MetaWiki	https://meta.wikimedia.org/wiki/$1
metawikimedia	https://meta.wikimedia.org/wiki/$1
MetaWikiPedia	https://meta.wikimedia.org/wiki/$1
Mineralienatlas	https://www.mineralienatlas.de/lexikon/index.php/$1
mixnmatch	https://mix-n-match.toolforge.org/#/catalog/$1
MoinMoin	https://moinmo.in/$1
MosaPedia	https://mosapedia.de/wiki/index.php/$1
MozillaWiki	https://wiki.mozilla.org/$1
MozillaZineKB	https://kb.mozillazine.org/$1
MW	https://www.mediawiki.org/wiki/$1
MWOD	https://www.merriam-webster.com/dictionary/$1
MWOT	https://www.merriam-webster.com/thesaurus/$1
NARA	https://catalog.archives.gov/id/$1
nLab	https://ncatlab.org/nlab/show/$1
Nost	https://nostalgia.wikipedia.org/wiki/$1
nostalgia	https://nostalgia.wikipedia.org/wiki/$1
oclc	https://www.worldcat.org/oclc/$1
OEIS	//oeis.org/$1
oewiki	https://oesterreichwiki.org/wiki/$1
OldWikisource	https://wikisource.org/wiki/$1
OLPC	https://wiki.laptop.org/go/$1
Openlibrary	https://openlibrary.org/$1
Openstreetmap	//wiki.openstreetmap.org/wiki/$1
OpenWetWare	https://openwetware.org/wiki/$1
OrganicDesign	https://www.organicdesign.co.nz/$1
OrthodoxWiki	https://orthodoxwiki.org/$1
OSMwiki	//wiki.openstreetmap.org/wiki/$1
OTRS	https://ticket.wikimedia.org/otrs/index.pl?Action=AgentTicketZoom&TicketID=$1
OTRSwiki	https://vrt-wiki.wikimedia.org/wiki/$1
Outreach	https://outreach.wikimedia.org/wiki/$1
OutreachWiki	https://outreach.wikimedia.org/wiki/$1
owasp	https://www.owasp.org/index.php/$1
paws	https://public-paws.wmcloud.org/$1
petscan	https://petscan.wmflabs.org/?psid=$1
phab	https://phabricator.wikimedia.org/$1
phabricator	https://phabricator.wikimedia.org/$1
PlanetMath	https://planetmath.org/alphabetical.html
PMID	https://www.ncbi.nlm.nih.gov/pubmed/$1?dopt=Abstract
PokeWiki	https://pokewiki.de/$1
PokéWiki	https://pokewiki.de/$1
Policy	https://policy.wikimedia.org/$1
ProofWiki	//www.proofwiki.org/wiki/$1
pyrev	https://www.mediawiki.org/wiki/Special:Code/pywikipedia/$1
PythonInfo	//wiki.python.org/moin/$1
Quality	https://quality.wikimedia.org/wiki/$1
Quarry	https://quarry.wmcloud.org/$1
rcirc	irc://irc.wikimedia.org/$1
regiowiki	https://regiowiki.at/wiki/$1
rev	https://www.mediawiki.org/wiki/Special:Code/MediaWiki/$1
ReVo	https://reta-vortaro.de/revo/art/$1.html
RFC	//tools.ietf.org/html/rfc$1
RheinNeckar	https://rhein-neckar-wiki.de/$1
Rodovid	https://en.rodovid.org/wk/$1
RT	https://rt.wikimedia.org/Ticket/Display.html?id=$1
Scholar	//scholar.google.com/scholar?q=$1
SchoolsWP	https://meta.wikimedia.org/wiki/Interwiki_map/discontinued#SchoolsWP
Scores	https://imslp.org/wiki/$1
Scoutwiki	https://en.scoutwiki.org/$1
securewikidc	https://wikimediadc.org/wiki/$1
semantic-mw	//www.semantic-mediawiki.org/wiki/$1
SenseisLibrary	https://senseis.xmp.net/?$1
sep11	//meta.wikimedia.org/wiki/Sep11wiki
ShareMap	https://meta.wikimedia.org/w/index.php?title=Interwiki_map/discontinued#Sharemap
silcode	https://iso639-3.sil.org/code/$1
slashdot	https://slashdot.org/article.pl?sid=$1
SourceForge	https://sourceforge.net/$1
spcom	https://spcom.wikimedia.org/wiki/$1
Species	https://species.wikimedia.org/wiki/$1
stats	https://stats.wikimedia.org/$1
Stewardry	https://meta.toolforge.org/stewardry/?wiki=$1
Strategy	https://strategy.wikimedia.org/wiki/$1
StrategyWiki	https://strategywiki.org/wiki/$1
Sulutil	https://meta.wikimedia.org/wiki/Special:CentralAuth/$1
svn	https://svn.wikimedia.org/viewvc/mediawiki/$1?view=log
Swtrain	https://train.spottingworld.com/$1
tardis	https://tardis.wiki/wiki/$1
TclersWiki	https://wiki.tcl-lang.org/page/$1
Tenwiki	https://ten.wikipedia.org/wiki/$1
Test2wiki	https://test2.wikipedia.org/wiki/$1
Testcommons	https://test-commons.wikimedia.org/wiki/$1
Testwiki	https://test.wikipedia.org/wiki/$1
Testwikidata	https://test.wikidata.org/wiki/$1
TFWiki	https://tfwiki.net/wiki/$1
Thelemapedia	http://www.thelemapedia.org/index.php/$1
Theopedia	https://www.theopedia.com/$1
Ticket	https://ticket.wikimedia.org/otrs/index.pl?Action=AgentTicketZoom&TicketNumber=$1
TMBW	https://tmbw.net/wiki/$1
toolforge	https://iw.toolforge.org/$1
toolhub	https://toolhub.wikimedia.org/$1
toollabs	https://iw.toolforge.org/$1
Tools	//toolserver.org/$1
translatewiki	https://translatewiki.net/wiki/$1
tswiki	//www.mediawiki.org/wiki/Toolserver:$1
TVIV	http://tviv.org/wiki/$1
TWiki	https://twiki.org/cgi-bin/view/$1
twl	https://wikipedialibrary.wmflabs.org/search/?q=$1
TyvaWiki	https://meta.wikimedia.org/wiki/Interwiki_map/discontinued#TyvaWiki
umap	https://umap.openstreetmap.fr/$1
Uncyclopedia	https://en.uncyclopedia.co/wiki/$1
Unihan	https://www.unicode.org/cgi-bin/GetUnihanData.pl?codepoint=$1
Urbandict	https://www.urbandictionary.com/define.php?term=$1
usability	https://usability.wikimedia.org/wiki/$1
UseMod	https://www.usemod.org/cgi-bin/wiki.pl?$1
utrs	https://utrs-beta.wmflabs.org/appeal/$1
VIAF	https://viaf.org/viaf/$1
vikidia	//fr.vikidia.org/wiki/$1
VLOS	https://tusach.thuvienkhoahoc.com/wiki/$1
Votewiki	https://vote.wikimedia.org/wiki/$1
vrts	https://ticket.wikimedia.org/otrs/index.pl?Action=AgentTicketZoom&TicketID=$1
vrtwiki	https://vrt-wiki.wikimedia.org/wiki/$1
wcna	https://wikiconference.org/wiki/$1
Weirdgloop	https://meta.weirdgloop.org/w/$1
WeRelate	https://www.werelate.org/wiki/$1
wg	https://wg-en.wikipedia.org/wiki/$1
Wikia	https://community.fandom.com/wiki/w:c:$1
WikiApiary	//wikiapiary.com/wiki/$1
WikiaSite	https://community.fandom.com/wiki/w:c:$1
Wikibooks	https://en.wikibooks.org/wiki/$1
Wikicities	https://community.fandom.com/wiki/w:$1
Wikicity	https://community.fandom.com/wiki/w:c:$1
Wikiconference	https://wikiconference.org/wiki/$1
Wikidata	https://www.wikidata.org/wiki/$1
wikiedudashboard	https://dashboard.wikiedu.org/$1
Wikifunctions	https://www.wikifunctions.org/wiki/$1
WikiFur	//en.wikifur.com/wiki/$1
wikiHow	https://www.wikihow.com/$1
WikiIndex	https://wikiindex.org/$1
Wikilivres	https://meta.wikimedia.org/wiki/Interwiki_map/discontinued#Wikilivres
WikilivresRU	https://wikilivres.ru/$1
Wikimania	https://wikimania.wikimedia.org/wiki/$1
Wikimedia	https://foundation.wikimedia.org/wiki/$1
Wikinews	https://en.wikinews.org/wiki/$1
Wikinfo	https://wikinfo.org/w/index.php/$1
Wikinvest	https://meta.wikimedia.org/wiki/Interwiki_map/discontinued#Wikinvest
Wikipapers	https://meta.wikimedia.org/wiki/Interwiki_map/discontinued#Wikipapers
Wikipedia	https://en.wikipedia.org/wiki/$1
WikipediaWikipedia	https://en.wikipedia.org/wiki/Wikipedia:$1
Wikiquote	https://en.wikiquote.org/wiki/$1
WikiSkripta	https://www.wikiskripta.eu/index.php/$1
wikisophia	https://meta.wikimedia.org/wiki/Interwiki_map/discontinued#Wikisophia
Wikisource	https://en.wikisource.org/wiki/$1
wikisp	https://wikisp.org/wiki/$1
Wikispecies	https://species.wikimedia.org/wiki/$1
Wikispore	https://wikispore.wmflabs.org/wiki/$1
Wikispot	http://wikispot.org/?action=gotowikipage&v=$1
Wikitech	https://wikitech.wikimedia.org/wiki/$1
labsconsole	https://wikitech.wikimedia.org/wiki/$1
WikiTrek	https://wikitrek.org/wiki/$1
WikiTI	https://wikiti.brandonw.net/index.php?title=$1
Wikiversity	https://en.wikiversity.org/wiki/$1
Wikivoyage	https://en.wikivoyage.org/wiki/$1
WikiWikiWeb	https://wiki.c2.com/?$1
Wiktionary	https://en.wiktionary.org/wiki/$1
Wm2005	https://wikimania2005.wikimedia.org/wiki/$1
Wm2006	https://wikimania2006.wikimedia.org/wiki/$1
Wm2007	https://wikimania2007.wikimedia.org/wiki/$1
Wm2008	https://wikimania2008.wikimedia.org/wiki/$1
Wm2009	https://wikimania2009.wikimedia.org/wiki/$1
Wm2010	https://wikimania2010.wikimedia.org/wiki/$1
Wm2011	https://wikimania2011.wikimedia.org/wiki/$1
Wm2012	https://wikimania2012.wikimedia.org/wiki/$1
Wm2013	https://wikimania2013.wikimedia.org/wiki/$1
Wm2014	https://wikimania2014.wikimedia.org/wiki/$1
Wm2015	https://wikimania2015.wikimedia.org/wiki/$1
Wm2016	https://wikimania2016.wikimedia.org/wiki/$1
Wm2017	https://wikimania2017.wikimedia.org/wiki/$1
Wm2018	https://wikimania2018.wikimedia.org/wiki/$1
wmam	https://am.wikimedia.org/wiki/$1
Wmania	https://wikimania.wikimedia.org/wiki/$1
wmar	https://www.wikimedia.org.ar/wiki/$1
wmat	https://mitglieder.wikimedia.at/$1
wmau	https://wikimedia.org.au/wiki/$1
wmbd	https://bd.wikimedia.org/wiki/$1
wmbe	https://be.wikimedia.org/wiki/$1
wmbr	https://br.wikimedia.org/wiki/$1
wmca	https://ca.wikimedia.org/wiki/$1
wmch	https://www.wikimedia.ch/$1
wmcl	https://wikimedia.cl/$1
wmcn	https://cn.wikimedia.org/wiki/$1
wmco	https://co.wikimedia.org/wiki/$1
wmcz	https://www.wikimedia.cz/$1
wmcz_docs	https://docs.wikimedia.cz/wiki/$1
wmcz_old	https://old.wikimedia.cz/wiki/$1
wmdc	https://wikimediadc.org/wiki/$1
wmde	https://wikimedia.de/$1
WMDEblog	//blog.wikimedia.de/$1
wmdk	https://dk.wikimedia.org/wiki/$1
wmdoc	https://doc.wikimedia.org/$1
wmec	https://ec.wikimedia.org/wiki/$1
wmee	https://ee.wikimedia.org/wiki/$1
wmes	https://www.wikimedia.es/wiki/$1
wmet	https://ee.wikimedia.org/wiki/$1
WMF	https://foundation.wikimedia.org/wiki/$1
WMFblog	https://diff.wikimedia.org/$1
wmfdashboard	https://outreachdashboard.wmflabs.org/$1
wmfi	https://fi.wikimedia.org/wiki/$1
wmfr	https://wikimedia.fr/$1
wmge	https://ge.wikimedia.org/wiki/$1
wmhi	https://hi.wikimedia.org/wiki/$1
wmhk	https://meta.wikimedia.org/wiki/Wikimedia_Hong_Kong
wmhu	https://wikimedia.hu/wiki/$1
wmid	https://id.wikimedia.org/wiki/$1
wmil	https://www.wikimedia.org.il/$1
wmin	https://meta.wikimedia.org/wiki/Wikimedia_India
wmit	https://wiki.wikimedia.it/wiki/$1
wmke	https://meta.wikimedia.org/wiki/Wikimedia_Kenya
wmmk	https://mk.wikimedia.org/wiki/$1
wmmx	https://mx.wikimedia.org/wiki/$1
wmnl	https://nl.wikimedia.org/wiki/$1
wmno	https://no.wikimedia.org/wiki/$1
wmnyc	https://nyc.wikimedia.org/wiki/$1
wmpa-us	https://pa-us.wikimedia.org/wiki/$1
wmph	https://meta.wikimedia.org/wiki/Wiki_Society_of_the_Philippines
wmpl	https://pl.wikimedia.org/wiki/$1
wmplsite	https://wikimedia.pl/$1
wmpt	https://pt.wikimedia.org/wiki/$1
wmpunjabi	https://punjabi.wikimedia.org/wiki/$1
wmromd	https://romd.wikimedia.org/wiki/$1
wmrs	https://rs.wikimedia.org/wiki/$1
wmru	https://ru.wikimedia.org/wiki/$1
wmse	https://se.wikimedia.org/wiki/$1
wmsk	https://wikimedia.sk/$1
Wmteam	https://wikimaniateam.wikimedia.org/wiki/$1
wmtr	https://tr.wikimedia.org/wiki/$1
wmtw	https://meta.wikimedia.org/wiki/Wikimedia_Taiwan
wmua	https://ua.wikimedia.org/wiki/$1
wmuk	https://wikimedia.org.uk/wiki/$1
wmve	https://ve.wikimedia.org/wiki/$1
wmza	https://meta.wikimedia.org/wiki/Wikimedia_South_Africa
Wookieepedia	https://starwars.fandom.com/wiki/$1
WoWWiki	https://wowpedia.fandom.com/wiki/$1
wplibrary	https://wikipedialibrary.wmflabs.org/search/?q=$1
WurmPedia	https://wurmpedia.com/index.php/$1
xkcd	https://xkcd.com/$1
xtools	https://xtools.wmcloud.org/$1
zum	https://wiki.zum.de/$1