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Site Information

peralta.edu

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

19Domain PageRank
20Host Backlinks
344Domain Backlinks
Link authority data (PageRank, harmonic centrality) and backlinks come from the Common Crawl web graph.
peralta_edu.profile
Current Scores

Web-graph authority (0-100)

Domain scores measure peralta.edu 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 peralta.edu. 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.

19
Domain PageRank
0
Host PageRank
12
WWW PageRank
96
Domain Harmonic Centrality
94
Host Harmonic Centrality
95
WWW Harmonic Centrality
Site Intelligence

Homepage

What peralta.edu presents on its own homepage: the page title, description, and the social share markup it publishes. Pulled from https://peralta.edu.

TitlePeralta Colleges. Passion. Purpose. Possibilities.
DescriptionWelcome to the Peralta Community College District website. Explore the latest updates and events at Peralta Colleges for Fall 2024.
OG TitlePeralta Colleges. Passion. Purpose. Possibilities.
OG DescriptionWelcome to the Peralta Community College District website. Explore the latest updates and events at Peralta Colleges for Fall 2024.
Twitter TitlePeralta Colleges. Passion. Purpose. Possibilities.
Twitter Cardsummary
Site Intelligence

Social accounts and contact points

Where this site maintains a presence and every reachable route its homepage exposes: social accounts, contact pages, addresses, and content feeds.

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 peralta.edu and domain-level for peralta.edu 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.

20
Host Backlinks
344
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 peralta.edu (including its subdomains), ranked by the linker's PageRank. The table shows the top 344; 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
google.com10099
wikipedia.org9053
github.io8747
blogspot.com8648
weebly.com8545
wixsite.com8345
outlook.com8344
ca.gov8045
berkeley.edu7844
constantcontact.com7840
wisc.edu7641
usc.edu7441
ucla.edu7440
va.gov7438
illinois.edu7340
ucsd.edu7338
instructure.com7241
lbl.gov7138
sjsu.edu7041
indiana.edu7038
pitt.edu7037
csun.edu6941
cuny.edu6937
sfsu.edu6937
iu.edu6937
bkstr.com6839
wikidot.com6838
byu.edu6838
oregonstate.edu6837
hawaii.edu6837
temple.edu6737
britishcouncil.org6736
overdrive.com6736
bestcolleges.com6536
blavity.com6536
unt.edu6535
libretexts.org6437
grist.org6436
fastweb.com6235
silktide.com6235
archiveteam.org6234
jira.com6234
ticketweb.com6234
usfca.edu6135
csuchico.edu6134
ktvu.com6035
iie.org6035
signnow.com6034
good.is5935
montclair.edu5934
csusb.edu5934
acgov.org5835
wlu.edu5834
myliaison.com5833
nche.edu5734
idp.com5734
merlot.org5734
greatfire.org5634
wiche.edu5634
oaklandlibrary.org5633
cccco.edu5534
ousd.org5534
reason.org5434
oocities.org5434
leadiq.com5434
fogbugz.com5334
ccdaily.com5334
plu.edu5334
dochub.com5334
losrios.edu5234
collegevine.com5234
alamedacountyca.gov5233
hillel.org5233
collegexpress.com5134
tennis-warehouse.com5134
nucamp.co5123
50states.com5034
worcester.edu5034
indybay.org4934
usmd.edu4934
prlog.ru4934
canyons.edu4933
campusexplorer.com4933
eurekster.com4933
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ecologycenter.org4933
capitolweekly.net4924
kzoo.edu4924
iflyoak.com4923
mokwon.ac.kr4833
wittkieffer.com4833
feedbackfruits.com4823
world.edu4734
cvc.edu4733
vvc.edu4733
portofoakland.com4733
hartnell.edu4733
collegeofsanmateo.edu4733
studyusa.com4634
swccd.edu4633
universities.com4633
openoregon.org4633
burbio.com4623
newsworthy.ai4534
husd.us4533
laney.edu4533
mu.nu4533
berkeleyschools.net4433
philhillaa.com4433
berkeleycitycollege.edu4433
cuyamaca.edu4433
lbschools.net4425
causeweb.org4424
cos.edu4333
gregoryhubert.com4333
eastbayeda.org4323
everylearnereverywhere.org4322
piedmontexedra.com4234
acalanes.k12.ca.us4233
merritt.edu4233
frc.edu4233
oaklandnorth.net4223
tsacg.com4119
alamedaunified.org4033
bsc.coop4033
foxandhoundsdaily.com4024
hellmanfoundation.org3933
alameda.edu3933
ca-hwi.org3923
lib-web.org3923
pinole.gov3922
kippnorcal.org3921
acoe.org3921
oaklandwiki.org3833
openeducationalberta.ca3823
aahhe.org3823
eldercarealliance.org3822
flex.one3821
cisl.edu3733
authority.org3733
baccc.net3733
riomesahigh.us3733
scholarshipstats.com3722
focmedia.org3722
onlinenetworkofeducators.org3721
oaklandlgbtqcenter.org3721
inthefieldstories.net3720
ccsmart.org3633
environmentgo.com3623
umojacommunity.org3621
nofi.media3523
instavr.co3522
roundup.org3521
oaklandsmartandstrong.org3421
sunraydirect.com3417
weadartists.org3323
streamfare.com3323
emmysf.tv3323
semanticjuice.com3322
relocation.com3222
meatheadmovers.com3222
oaklandchamber.com3123
alamedakids.org3122
ccpulse.org3121
psychologydegreeguide.org3023
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giveupinternet.com3022
hepinc.com3021
grouptrail.com3020
phwellness.com3019
kezmu.hu3017
truepurposeinstitute.com2921
reasoninglab.com2919
nursegroups.com2823
oakmil.org2822
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neveryetmelted.com2723
lwvoakland.org2723
atlanticoer-relatlantique.ca2722
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nlcs.gov.bt2720
ahead-penn.org2622
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alliedhealthprograms.com2620
zip.io2618
sunrisevietnam.com2522
futureeducationmagazine.com2522
turnitin.ca2521
uni.edu.gt2518
amrein.com2422
huenemehigh.us2422
wojrc.org2421
cccaoe.org2421
studycalifornia.us2419
globalstudynet.com2412
accca.org2319
camarillohigh.us2221
careermosaic.org2221
hispanicoutlookjobs.com2219
gamewarden.org2219
ssccc.org2218
theliberaloc.com2123
vanlines.com2122
portalslink.com2122
forestoftherain.net2122
learningcurve-th.com2122
oxnardhigh.us2121
eli.edu2121
fazerparaaprender.am.gov.br2120
blackheadlinenews.com2117
collegiateguide.com2113
country-studies.com2023
studentsenateccc.org2022
channelislandshigh.us2021
ojt.com2019
reworkthebay.org2018
global-study.jp2018
screensite.org1923
aft1493.org1922
rekzkarz.com1922
wholeren.com1922
flightschoollist.com1922
ccdet.org1921
bayarearegistry.com1919
letsgotocollegeca.org1919
worldbusinesspromote.com1918
aaeducationusa.com1918
coaphys.xyz197
farmersville.k12.ca.us1821
ranchocampanahigh.us1821
alamedaclc.org1821
frontierhigh.us1821
delsolhighschool.us1821
glcateachlearn.org1818
ccieworld.org1818
tecupdate.com1817
applywave.com1817
voxpublica.org1723
lascasasoakland.org1721
dltech.forum1718
medicalfieldcareers.com1718
cmc3.org1717
oecglobal.com.vn1717
referencedesk.org1619
sanleandronext.com1619
branchspot.com1523
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vietnamhieuhoc.com1522
locunity.com1521
bitbucketacademy.com1518
kitchellprogress.com1514
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alc-gp.jp1423
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worldschoolface.com1418
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america.edu1322
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collegepipe.com1317
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retrica0.com1222
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bayareaautismconsortium.org1219
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loginmanual.com1213
southernrockiesnatureblog.com1122
byoweb.org1122
condorhigh.us1117
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lpbacked.com1113
riovida.net1023
ccclgbt.org1022
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mbicorp.ca1018
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dentaljobs.net1017
naaec.org1017
neaclc.org1017
applycollege.org1012
d1hr.com100
counselorchloe.com921
akit.org918
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tilc.hk810
interalex.net722
rpgvirtualtabletop.com722
justiceconversation.org721
partnersforedu.org718
graduationgown.com717
academicnetworkinc.com613
braininjuryconnection.org613
globaledupolis.com518
usculinaryschools.com517
gurueducation.net510
domains.foundation418
aljabran.com412
libraryjobshq.com412
collegeopenings.com411
castropod.com411
bfeduconsult.com40
saveourcityalameda.org317
thehob.net317
carecprfirstaid.com317
tairona.org313
daolink.mom312
governmentworkforcenetwork.com217
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buildsoundcommunity.org210
sevpschools.com117
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moodswingjazz.net112
dailynews.am112
beeinnow.com017
christenbooth.com012
webradiodobem.com.br00
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charityace.news00
civicpride.net00
italytimes.it00
ccgoller.com00
gcrao.com00
sherrysuismanconsulting.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 peralta.edu specifically, ranked by the linker's PageRank. The table shows the top 20; 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)