Open Authority Rating
Top .io domains
From the cc-main-2026-aug-sep-oct release (134,979,706 ranked domains). Ordered by harmonic-centrality rank, OAR’s primary input — two OAR integers can tie or invert slightly through the PageRank component.
| HC rank | Domain | OAR |
|---|
| #17,486 | ocsf.io | 47 |
| #17,583 | quickcreator.io | 45 |
| #17,620 | kontakt.io | 45 |
| #17,625 | rvm.io | 47 |
| #17,629 | gerrithub.io | 49 |
| #17,633 | flashpoint.io | 47 |
| #17,656 | azurecontainerapps.io | 46 |
| #17,774 | consensys.io | 46 |
| #17,887 | castle.io | 49 |
| #17,888 | educative.io | 47 |
| #17,912 | webcatalog.io | 44 |
| #18,080 | ticket.io | 48 |
| #18,198 | hippovideo.io | 46 |
| #18,346 | microservices.io | 47 |
| #18,402 | brella.io | 46 |
| #18,449 | sansec.io | 48 |
| #18,550 | git.io | 48 |
| #18,581 | pivotal.io | 47 |
| #18,626 | goharbor.io | 47 |
| #18,668 | sylabs.io | 46 |
| #18,783 | pingbell.io | 43 |
| #18,791 | parkmobile.io | 47 |
| #18,921 | truckymods.io | 45 |
| #19,008 | honeybadger.io | 48 |
| #19,055 | robustperception.io | 47 |
| #19,103 | postach.io | 45 |
| #19,201 | cfire.io | 49 |
| #19,272 | trezor.io | 47 |
| #19,305 | druid.io | 47 |
| #19,313 | greynoise.io | 46 |
| #19,367 | specterops.io | 48 |
| #19,374 | air.io | 46 |
| #19,413 | tomba.io | 44 |
| #19,539 | contentstudio.io | 46 |
| #19,558 | packer.io | 47 |
| #19,599 | bsport.io | 46 |
| #19,644 | marker.io | 46 |
| #19,718 | coefficient.io | 45 |
| #19,965 | alluxio.io | 45 |
| #19,966 | kandji.io | 47 |
| #20,065 | aira.io | 47 |
| #20,087 | devby.io | 44 |
| #20,122 | aiven.io | 46 |
| #20,155 | b2match.io | 46 |
| #20,159 | hokiku.io | 49 |
| #20,184 | phalcon.io | 47 |
| #20,239 | chef.io | 49 |
| #20,426 | harness.io | 47 |
| #20,455 | epsg.io | 46 |
| #20,585 | didomi.io | 47 |
| #20,589 | fabric.io | 46 |
| #20,643 | liftoff.io | 47 |
| #20,719 | media.io | 46 |
| #20,730 | phaser.io | 46 |
| #20,788 | wati.io | 45 |
| #20,904 | papercall.io | 46 |
| #20,912 | ktor.io | 46 |
| #20,955 | okendo.io | 50 |
| #21,051 | quarkus.io | 47 |
| #21,154 | cex.io | 45 |
| #21,332 | technation.io | 45 |
| #21,387 | javadoc.io | 48 |
| #21,396 | helpdocs.io | 47 |
| #21,458 | suricata.io | 45 |
| #21,485 | krystal.io | 45 |
| #21,588 | pickupp.io | 43 |
| #21,603 | buildbuddy.io | 48 |
| #21,626 | docker.io | 46 |
| #22,050 | baselime.io | 47 |
| #22,077 | masakhane.io | 44 |
| #22,120 | percy.io | 45 |
| #22,163 | cloudevents.io | 47 |
| #22,449 | goadopt.io | 47 |
| #22,499 | snapsvg.io | 44 |
| #22,538 | dataquest.io | 45 |
| #22,626 | fungies.io | 43 |
| #22,634 | nethermind.io | 44 |
| #22,807 | ruder.io | 45 |
| #22,915 | vertx.io | 45 |
| #22,957 | iexcloud.io | 43 |
| #22,982 | southsummit.io | 44 |
| #23,160 | aryel.io | 43 |
| #23,240 | frb.io | 45 |
| #23,282 | justcall.io | 46 |
| #23,361 | abseil.io | 45 |
| #23,381 | setka.io | 48 |
| #23,533 | metooo.io | 45 |
| #23,708 | allmende.io | 44 |
| #23,750 | edl.io | 46 |
| #23,751 | favcrm.io | 42 |
| #23,922 | salesamurai.io | 45 |
| #24,080 | quay.io | 47 |
| #24,171 | journify.io | 45 |
| #24,275 | flycricket.io | 43 |
| #24,304 | protopie.io | 44 |
| #24,325 | iohk.io | 44 |
| #24,328 | beddy.io | 45 |
| #24,358 | aswf.io | 44 |
| #24,508 | reply.io | 46 |
| #24,632 | ctxt.io | 43 |