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
#41,074	vitess.io	44
#41,092	loox.io	48
#41,223	adapty.io	43
#41,419	blackthorn.io	43
#41,423	mystudio.io	42
#41,460	streamnative.io	42
#41,616	flutter.io	43
#41,732	apono.io	41
#41,914	tech.io	40
#41,919	tembo.io	42
#41,939	plastiks.io	41
#42,011	clueso.io	41
#42,013	strimzi.io	43
#42,028	opencost.io	42
#42,048	cardgames.io	40
#42,080	chronosphere.io	44
#42,311	enpass.io	42
#42,348	vuhdo.io	42
#42,384	pymc.io	42
#42,430	gojek.io	41
#42,436	rejestr.io	41
#42,496	aurahealth.io	42
#42,563	k3d.io	42
#42,567	vids.io	42
#42,670	hexlet.io	41
#42,721	vcpkg.io	43
#42,811	bonify.io	40
#42,891	paiza.io	41
#42,923	weka.io	43
#43,085	fluf.io	39
#43,088	softgarden.io	45
#43,150	public.io	42
#43,267	mailhide.io	42
#43,302	aidungeon.io	41
#43,355	kiali.io	42
#43,417	zksync.io	43
#43,523	appbuild.io	40
#43,672	onpay.io	43
#43,712	minio.io	42
#43,797	legalweb.io	44
#43,848	broad.io	41
#43,857	playtomic.io	43
#43,864	dashbot.io	40
#43,873	eos.io	41
#43,898	upbound.io	41
#43,911	ipaper.io	46
#43,913	starlette.io	44
#43,935	bitcraze.io	41
#43,957	codecrafters.io	41
#43,968	buckaroo.io	41
#44,014	elmah.io	42
#44,051	umbraco.io	44
#44,238	allscale.io	39
#44,278	3commas.io	41
#44,296	spaceandtime.io	41
#44,364	stornaway.io	41
#44,385	website-auditor.io	39
#44,438	gitgud.io	41
#44,443	in-toto.io	43
#44,449	standarddeviationcalculator.io	40
#44,457	funnelflare.io	39
#44,503	slopecalculator.io	39
#44,508	anjuna.io	41
#44,566	datahubproject.io	42
#44,579	hardwear.io	42
#44,632	microk8s.io	43
#44,776	htmlemail.io	41
#44,782	gopublish.io	39
#44,857	ivorypay.io	39
#44,862	jetstack.io	41
#44,939	codeprint.io	40
#44,967	rankplus.io	39
#44,993	cdla.io	42
#45,048	kubebuilder.io	43
#45,099	postnext.io	39
#45,117	happilee.io	39
#45,176	brokenlinkchecker.io	39
#45,177	doublescale.io	39
#45,178	ideali.io	39
#45,179	pazarus.io	39
#45,180	xhub.io	39
#45,245	autothink.io	39
#45,246	clipwave.io	39
#45,247	infopeak.io	39
#45,284	inter-act.io	39
#45,437	inspec.io	40
#45,496	freshsales.io	42
#45,534	quizify.io	40
#45,636	bidr.io	47
#45,803	cbo.io	42
#46,062	gorm.io	42
#46,312	iverify.io	41
#46,383	r2dbc.io	41
#46,405	vespucci.io	39
#46,427	appauth.io	41
#46,438	bubbleapps.io	43
#46,702	eventify.io	42
#46,815	webscraper.io	42
#46,988	backtrace.io	41
#47,000	host.io	41