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Site Information

jccca.org

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

25Domain PageRank
18Host Backlinks
665Domain Backlinks
Link authority data (PageRank, harmonic centrality) and backlinks come from the Common Crawl web graph.
jccca_org.profile
Current Scores

Web-graph authority (0-100)

Domain scores measure jccca.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 jccca.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.

25
Domain PageRank
2
Host PageRank
21
WWW PageRank
95
Domain Harmonic Centrality
94
Host Harmonic Centrality
95
WWW Harmonic Centrality
Site Intelligence

Homepage

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

TitleJCCCA 全国地球温暖化防止活動推進センター
Description全国地球温暖化防止活動推進センター(JCCCA)は地球温暖化防止活動に役立つ情報の収集発信の場です
OG TitleJCCCA 全国地球温暖化防止活動推進センター
OG Description全国地球温暖化防止活動推進センター(JCCCA)は地球温暖化防止活動に役立つ情報の収集発信の場です
OG Site NameJCCCA 全国地球温暖化防止活動推進センター
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.

Site Intelligence

Structured data (JSON-LD)

The schema.org markup this homepage publishes: the machine-readable identity search engines and AI systems read. Types found: Organization, WebSite.

JSON-LD block (815 bytes)
{"@context": "https://schema.org","@graph": [{"@type":"Organization","@id":"https:\/\/www.jccca.org\/#organization","name":"JCCCA 全国地球温暖化防止活動推進センター","url":"https:\/\/www.jccca.org\/","logo":{"@type":"ImageObject","url":"https:\/\/www.jccca.org\/_bosys\/wp-content\/uploads\/2020\/11\/aee8f9931eabaab3d8009554354bb3fe.jpg","width":816,"height":106}},{"@type":"WebSite","@id":"https:\/\/www.jccca.org\/#website","url":"https:\/\/www.jccca.org\/","name":"JCCCA 全国地球温暖化防止活動推進センター","description":"全国地球温暖化防止活動推進センター(JCCCA)は地球温暖化防止活動に役立つ情報の収集発信の場です","potentialAction":{"@type":"SearchAction","target":"https:\/\/www.jccca.org\/?s={s}","query-input":"name=s required"}}]}
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 jccca.org and domain-level for jccca.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.

18
Host Backlinks
665
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 jccca.org (including its subdomains), ranked by the linker's PageRank. The table shows the top 665; 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
wikipedia.org9053
amazon.com8849
blogspot.com8648
hatena.ne.jp7938
mdpi.com7743
rakuten.co.jp7738
columbia.edu7643
prtimes.jp7537
hp.com7439
meti.go.jp7438
uchicago.edu7338
yimg.jp7328
peraichi.com7235
nttdata.com7137
jst.go.jp7137
asahi.com7136
blog.jp7036
mext.go.jp7035
env.go.jp7035
greenpeace.org6938
hatenablog.com6937
biglobe.ne.jp6937
xsrv.jp6936
exblog.jp6936
seesaa.net6936
impress.co.jp6837
camp-fire.jp6836
itmedia.co.jp6737
jma.go.jp6735
nii.ac.jp6735
kyoto-u.ac.jp6636
osaka.lg.jp6635
livedoor.blog6635
ricoh.co.jp6634
cocolog-nifty.com6536
yokohama.lg.jp6535
kokusen.go.jp6534
fukuoka.lg.jp6435
city.nagoya.jp6434
secure-cms.net6419
jaxa.jp6335
ntt.com6335
excite.co.jp6335
allabout.co.jp6235
sub.jp6235
tepco.co.jp6235
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kyoto.lg.jp6234
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gifu.lg.jp6134
saisoncard.co.jp6134
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gigazine.net6036
hatenablog.jp6036
chatwork.com6036
nedo.go.jp6035
pref.miyagi.jp6034
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ishikawa.lg.jp6034
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tochigi.lg.jp6026
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akita.lg.jp5934
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muji.net5534
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benesse.jp5434
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alterna.co.jp5034
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way-nifty.com5025
zurich.co.jp5025
kishiwada.lg.jp5023
kansai.co.jp5023
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sano.lg.jp4934
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pal-system.co.jp4933
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eizo.co.jp4924
kumagaya.lg.jp4924
ageo.lg.jp4924
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rakuten.today4924
city.tsu.mie.jp4923
city.kokubunji.tokyo.jp4923
esrij.com4833
sotozen-net.or.jp4833
eic.or.jp4833
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lsv.jp4833
renewable-ei.org4825
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kakogawa.lg.jp4824
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dokkyo.ac.jp4823
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industry-co-creation.com4724
city.isehara.kanagawa.jp4724
chino.lg.jp4723
homepro.jp4723
kiryu.lg.jp4723
ieagent.jp4723
hokkaido-gas.co.jp4723
ideasforgood.jp4723
penguinsolutions.com4722
coopnet.or.jp4633
hbol.jp4633
city.shirakawa.fukushima.jp4624
city.mihara.hiroshima.jp4624
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igrid.co.jp4533
spaceshipearth.jp4533
chem-station.com4533
city.sukagawa.fukushima.jp4523
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tb-m.com4522
looop-denki.com4433
kyoiku-shuppan.co.jp4433
kikonet.org4424
foejapan.org4424
benricho.org4424
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shiga-konan.lg.jp4423
sosa.lg.jp4423
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minden.co.jp4423
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aiina.jp4422
zenkoku-net.org4333
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jma-jp.org4323
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issueplusdesign.jp4320
zeroboard.jp4319
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education-profiles.org4224
eleminist.com4224
buttobi.net4224
route06.com4223
terrascope.com4223
studying.jp4223
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asuene.com4221
politas.jp4133
ebayama.jp4133
pps-net.org4124
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modernliving.jp4123
enpitu.ne.jp4123
itcenex.com4122
shouene-kaden2.net4119
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kcfca.or.jp4033
bakufu.org4024
invox.jp4022
eneres.co.jp4022
liberaluni.com4019
uchieco-shindan.jp4018
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cococolor-earth.com3923
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kpp-gr.com3833
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sompo-ri.co.jp3824
setagaya.ed.jp3824
ecochil.net3822
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npo-kankyonomori.com3733
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egmkt.co.jp3723
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kantoko.com3718
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ene100.jp3623
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okagas.co.jp3621
e-dash.io3619
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seicho-no-ie.org3524
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ieei.or.jp3523
orikane.co.jp3523
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keep.or.jp3523
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de-denkosha.co.jp3522
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ctiweb.co.jp3522
wastebox.net3520
kkj.or.jp3518
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manno.jp3423
losszero.jp3422
future-artisan.co.jp3421
enegaeru.com3420
mebs.co.jp3419
projectdesign.co.jp3418
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agripick.com3323
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all62.jp3323
okippa.life3323
tainavi-switch.com3322
tkz.or.jp3322
kurashi-tech.com3321
naturesway.co.jp3320
yumesolar.jp3319
kagoshima-env.or.jp3319
neo-natural.com3319
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i-goods.co.jp2819
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alljp.org2518
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eco-akita.org2517
fukuiku.net2423
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reborn-japan.com2422
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naso.jp2418
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gepr.org2323
switch-news.com2323
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dr-eco.jp2319
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epo-cg.jp2318
eco-niigata.or.jp2317
info-japan.jp2312
towntv.co.jp2223
norimen.com2222
eco-toyota.com2222
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wagamachi.com2118
dx-e.net2118
eppy.jp2118
happy-earthday-osaka.jp2117
kosmost.jp2022
smartsenkyo.com2019
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idaten.vc1923
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rgl.co.jp1921
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kccca.jp1818
hccca-co2zero.org1817
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ai-government-portal.com1722
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kmkm-study.com00
astro-dic.net00
nagashimakk.com00
rikaniga.net00
axia-qol.com00
tokinoe.net00
usagi-photos.com00
dk-tech.co.jp00
takamura.jp00
opeca.jp00
nulo-mindlog.com00
kobe-net.info00
xn--68j7byb5bz911a5ch7wj2vf768bwg1b.jp00
oh-ocean.com00
oit-ed.com00
otona-kateika.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 jccca.org specifically, ranked by the linker's PageRank. The table shows the top 18; 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)