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Site Information

gct.com

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

12Domain PageRank
11Host Backlinks
200Domain Backlinks
Link authority data (PageRank, harmonic centrality) and backlinks come from the Common Crawl web graph.
gct_com.profile
Current Scores

Web-graph authority (0-100)

Domain scores measure gct.com 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 gct.com. 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.

12
Domain PageRank
1
Host PageRank
-
WWW PageRank
95
Domain Harmonic Centrality
93
Host Harmonic Centrality
-
WWW Harmonic Centrality
Site Intelligence

Homepage

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

TitleRiver Cruises, Small Ship Cruises, & Land Tours | Grand Circle Travel & Grand Circle Cruise Line
DescriptionRiver Cruises, Small Ship Cruises, & Land Tours | Grand Circle Travel & Grand Circle Cruise Line
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.

Facebook grandcircletravel
Linkedin grand-circle-corporation (business)
Contact pages https://gct.com/about-us/contact-us
Phones +1-800-221-2610
1-800-221-2610
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 gct.com and domain-level for gct.com 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.

11
Host Backlinks
200
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 gct.com (including its subdomains), ranked by the linker's PageRank. The table shows the top 200; 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
github.io8747
blogspot.com8648
prnewswire.com8044
constantcontact.com7840
foxnews.com7442
ucsd.edu7338
24tv.ua6839
hubpages.com6736
peta.org6435
smartertravel.com6427
afar.com6135
extraspace.com5834
listverse.com5535
ricksteves.com5534
kmworld.com5533
mixbook.com5526
forbesargentina.com5334
grunge.com5225
explore.com5224
builtinboston.com5123
nysut.org5034
typo3server.info5033
travelawaits.com5025
eurekster.com4933
aaltci.org4924
gogograndparent.com4923
ustoa.com4922
apf.gv.at4922
fourthsource.com4922
antarcticglaciers.org4834
startbewijs.nl4833
johnnyjet.com4734
storypoint.com4724
iaato.org4724
bootsnall.com4625
ts.ee4624
escapehunt.com4624
solotravelerworld.com4623
forbes.com.ec4533
reaction.life4533
rollingpin.at4433
xonecole.com4433
goworldtravel.com4325
beststartup.us4323
cookingchew.com4233
askchapter.org4222
museudodouro.pt4133
europeforvisitors.com4133
noticiaslogisticaytransporte.com4033
tripatini.com4033
oattravel.com4023
familyvacationist.com3921
travelprofessionalnews.com3823
mlmlegal.com3823
electricbikereport.com3823
cruiselawnews.com3723
grayingwithgrace.com3722
greatseniorliving.com3722
douroazul.com3623
dealrated.com3533
followalice.com3521
internationalposter.com3423
exploreinspired.com3323
squashbusters.org3323
reuniontechnologies.com3321
bbcwwpartners.com3223
parkerlife.org3221
cruise202.com3220
wikiital.com3124
allworld.com3123
incrivel.club3023
nabbw.com2923
travelgumbo.com2923
suddenlysenior.com2923
tours.com2922
sympa-sympa.com2822
opx.pl2723
bridgeandtunnelclub.com2723
neverstoptraveling.com2722
rebelroam.com2722
portdubrovnik.hr2621
rebuildingtogetherboston.org2620
kic.inc2617
smarttourism.vn2617
comparepairs.com2522
reidsitaly.com2423
grandcirclefoundation.org2422
nfnortheast.org2421
destinationtunisie.info2223
agupieware.com2222
beccagarber.com2222
rivercruiseadvisor.com2222
leadnear.com2222
wi-du.de2217
cruisingjournal.com2122
quirkycruise.com2122
oceancrew.org2023
pitzeradventures.com2018
womanan.com2018
fiatwm.com2017
logisticsports.ee2013
about2cruise.co.uk1923
asmat.eu1923
goletavalleylibrary.org1922
emtexas.com1920
agelesstraveler.com1919
diogo-andrade.com1913
agingwithpizzazz.com1913
hepburnbiocare.com1910
mrspa.org1821
tecupdate.com1817
nudoss.com1722
expeditioncruising.com1722
tourscoop.com1720
50plusjobseekers.org1622
wheeloffortunesolutions.com1621
compasslight.com1621
thespiritnomad.com1621
danwheeler.us1612
murraysabrin.com1522
krane.net1522
emeraldheights.com1517
astrallimited.pl1514
mortraveling.com1423
icelandtouristboard.com1423
travelnwrite.com1422
muay-ying.com1422
vweisfeld.com1422
sbookscan.com1323
davidvaldeswrites.com1322
hearttocaretanzania.org1317
oneworldsinglesblog.net1222
marilyfeasweknowit.com1220
cruise.travel.in1217
sheraton.care1217
approachtours.com1217
worldtouroperators.com1212
pecorelettriche.it1123
traveltroll.info1122
escapefromcorporateamerica.com1120
bluewaterportfolios.com1117
bakingnaturally.org1117
demo-dromedar.com.hr118
travelersjournal.com1023
cruiseshipportal.com1022
smartlinks.org1022
ctojobshq.com1017
greentarayoga.net1013
interestingwiki.com1012
customercaresnumber.com920
backlinks.sbs918
styleweekprovidence.com917
luxury-cruising.com917
usamoneytoday.com917
visiter17.com913
africabookingmatch.com912
cruisefan.net912
marthal.com823
thefinancegenie.com818
blueharemagazine.com817
retirestyletravel.com717
o9p.net713
goldenislandhoney.com712
travelersunitedplus.com621
iamkaiser.com618
rivermixer.com617
runwaynomad.com613
cruiseferry.org613
cruise-ahoi.de612
lagratitude.co.za610
angiewilsonphotography.com522
dejarhuella.com522
ca-sole.com519
garciatrips.com517
allaboutcruisesandmore.com513
seawellbeing.com512
dkiel.com422
pigseye.com422
hipoverfifty.com417
seniorpilgrimage.com410
classifile.com322
adventuretraveltrekking.com322
constitute.net318
crucerizate.com312
zambiavictoriafalls.com312
endemic.pro312
activeseniorsliving.com310
rallybel.com217
rainbowtravelonline.com213
whatisyouredge.com212
grandcirclecrewing.com210
museumsexplorer.com117
rogerbrooksphotography.com18
vaksineogresept.no011
jakubkunat.cz010
kreuzfahrten-navigator.de00
amyzornart.com00
workfromoffice.com00
travelwithscottandcurtis.com00
myinfoangel.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 gct.com specifically, ranked by the linker's PageRank. The table shows the top 11; 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)