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Site Information

flex.org

Link authority for flex.org (registrable domain: flex.org) from the Common Crawl web graph: PageRank and harmonic centrality history since 2017, current scores, and the site's top backlink sources.

17Domain PageRank
82Host Backlinks
111Domain Backlinks
Link authority data (PageRank, harmonic centrality) and backlinks come from the Common Crawl web graph.
flex_org.profile
Current Scores

Web-graph authority (0-100)

Domain scores measure flex.org as a whole: every subdomain's links rolled up into one node of Common Crawl's domain-level web graph. Host scores measure the exact hostname flex.org. WWW scores cover the www variant of that hostname, which the graph tracks as its own entry since January 2026 (before that, www and bare host were merged). A big gap between domain and host usually means the domain's authority lives on other subdomains. PageRank is link-endorsement authority: how much weight the sites linking here carry themselves. Harmonic centrality measures reach: how close this site sits to the rest of the web when following links, which favors broadly connected sites over ones boosted by a few heavy linkers. All are normalized 0 to 100 within each crawl snapshot; a dash means that series does not exist for this site.

17
Domain PageRank
5
Host PageRank
-
WWW PageRank
95
Domain Harmonic Centrality
94
Host Harmonic Centrality
-
WWW Harmonic Centrality
Web-Graph History

Authority over time

Every Common Crawl web-graph release since 2017, roughly quarterly. The domain series goes back to 2017; Common Crawl only began publishing the host-level graph in 2020, so host lines start there. Click a legend entry to show or hide that line. Flat lines are normal for established sites; watch for sustained rises or drops, which track real gains or losses in who links here.

A note on www: through the end of 2025 the source web graph merged www and non-www hostnames into the bare name, so one host line covers both. Starting in January 2026 the graph splits them into separate entries, which is why www can carry its own scores going forward.

Backlink Data

Backlink counts

Unique linking domains seen in Common Crawl's link graphs. This is a different dataset than the 0-100 authority scores above: these are raw counts, host-level for flex.org and domain-level for flex.org with all its subdomains combined. Common Crawl covers a large sample of the web, not all of it, so treat counts as comparable between sites rather than absolute totals.

82
Host Backlinks
111
Domain Backlinks
Backlink Data

Top backlinks in the domain graph

Common Crawl publishes two link graphs. The DOMAIN graph connects whole domains: every link from any page of one domain to any page of another. This table shows the highest-authority domains linking to flex.org (including its subdomains), ranked by the linker's PageRank. The table shows the top 111; the download carries the full stored list (up to 10,000 linkers) as JSON. Click a linker for its own site profile.

Download domain backlinks (.json)

Linking SiteLinker PageRankLinker Harmonic Centrality
blogspot.com8648
oracle.com8545
aliyun.com7837
drupal.org7740
rubygems.org7639
org.ru7141
wikibooks.org7141
infoq.com7037
tistory.com7036
itpro.com6936
unige.ch6635
cnblogs.com6635
redmonk.com6428
linuxfr.org6134
developpez.com6134
dri.es6126
artima.com6035
gskinner.com5834
wordnik.com5828
opennet.ru5735
jb51.net5734
raymondcamden.com5734
ithome.com.tw5734
blogjava.net5634
robgonda.com5622
codezine.jp5535
hs-augsburg.de5434
developpez.net5134
hatenadiary.org5034
raibledesigns.com5033
jamesward.com4833
javaposse.com4724
sauria.com4633
mikechambers.com4534
phpdeveloper.org4533
seasar.org4533
creation.net4533
cubicgarden.com4533
guj.com.br4434
nfbnet.org4433
davidseah.com4424
muffinresearch.co.uk4423
websoft.ru4334
creaza.com4323
100scopenotes.com4233
noulakaz.net4223
neubreed.com.au4123
inazumatv.com4034
abdulqabiz.com4033
bloginblack.de4033
frogx3.com4024
neosoft.fr4018
cnitblog.com3923
webmaster.pt3824
javaexpress.pl3733
newtriks.com3722
martinvarsavsky.net3624
touilleur-express.fr3622
pursuit.be3533
nodans.com3522
adamflater.net3521
ggshow.com3321
pageprogressive.com3320
webzeugkoffer.de3220
jessewarden.com3122
mhavila.com.br3122
codeodyssey.se3117
alivelearn.net2922
nerdstalker.com2921
vivisectingmedia.com2913
whiteoaks.com2822
arcorama.fr2722
wahlers.com.br2522
derraab.com2513
maruskin.eu2422
fredshack.com2223
deitte.com2222
urlm.com2222
crazyrobot.net2222
patrick-heinzelmann.de2122
joshuabrauer.com2119
taggle.org2022
rahforum.biz1922
worldbusinesspromote.com1918
boschmans.net1918
img8.com1918
dltech.forum1718
flexfest.org1622
dailyexhaust.com1522
neophi.com1522
thechunk.com1219
greatestview.de1114
sjonsson.com1012
mp3fresh.net922
n-smith.com913
aeberli.name817
chadupton.com817
somatose.com712
uml4as.com712
ring.idv.tw622
josuepalma.com622
dlgsoftware.com616
parvisait.com614
drhymel.com512
solartxit.com511
daolink.mom312
mpggenie.com217
mikel.cn00
markeyev.ru00
weisim3.com00
patchpeters.com00
Backlink Data

Top backlinks in the host graph

The HOST graph connects exact hostnames, so subdomains count separately. This table shows the highest-authority hosts linking to flex.org specifically, ranked by the linker's PageRank. The table shows the top 82; the download carries the full stored list (up to 10,000 linkers) as JSON. Click a linker for its own site profile.

Download host backlinks (.json)

Linking SiteLinker PageRankLinker Harmonic Centrality
rubygems.org6827
www.infoq.com6626
www.cnblogs.com6524
linuxfr.org6024
dri.es6023
developer.aliyun.com5822
groups.drupal.org5624
digitheadslabnotebook.blogspot.com5421
www.raymondcamden.com5323
psha.org.ru5221
www.developpez.com5122
codezine.jp4922
www.opennet.ru4922
www.developpez.net4921
web.creaza.com4919
www.wordnik.com4823
www.blogjava.net4621
ithelp.ithome.com.tw4323
edutechwiki.unige.ch4323
www.guj.com.br4221
raibledesigns.com4122
jamesward.com3918
www.neosoft.fr3815
www.mikechambers.com3621
marxsoftware.blogspot.com3617
neubreed.com.au3616
blog.vivisectingmedia.com3412
wordnik.com3321
www.abdulqabiz.com3220
www.phpdeveloper.org3218
www.touilleur-express.fr3121
archive.newtriks.com3017
www.javaexpress.pl2817
biemond.blogspot.com2721
blog.maruskin.eu2717
nfbnet.org2618
deitte.com2521
www.patrick-heinzelmann.de2521
www.alivelearn.net2418
glossar.hs-augsburg.de2417
webzeugkoffer.de2416
phpdeveloper.org2316
www.robgonda.com2315
www.pageprogressive.com2212
www.flexfest.org2113
www.arcorama.fr2021
www.nerdstalker.com2018
www.sjonsson.com2010
www.mp3fresh.net1910
www.inazumatv.com1818
www.patchpeters.com180
rahforum.biz1715
worldbusinesspromote.com1713
www.weisim3.com140
mojo.whiteoaks.com1214
koko8829.tistory.com1214
www.adamflater.net1213
www.nodans.com1115
joshuabrauer.com1114
frogx3.com1013
www.josuepalma.com1011
bloginblack.de918
touilleur-express.fr913
agileui.blogspot.com913
greatestview.de814
forum.taggle.org714
reijii.solartxit.com79
somatose.com69
blog.pursuit.be517
www.parvisait.com511
aeberli.name413
www.n-smith.com413
drhymel.com411
www.chadupton.com40
mikechambers.com312
blog.chadupton.com30
mpggenie.com112
boschmans.net08
uml4as.com08
dlgsoftware.com00
blog.markeyev.ru00
www.mikel.cn00