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Missing pages return “not found”: how the world's top websites do
Of 549 of the world's most popular websites that we audited, 440 pass this check and 109 fall short.
80%
pass
440 of 549 sites
20%
fall short
109 of 549 sites
31 of 51
by how often it fails
1 is the most-failed check · area: Technical health
What this check means
A page that does not exist should say so with a 404 status. Sites that answer “200 OK” for anything fill search indexes with empty pages.
Guide: How to find and fix broken links on your website
Popular sites that fall short (109)
facebook.comfbcdn.netmail.ruoffice.comlive.comcloud.microsoftnetflix.compinterest.commyfritz.nettiktok.comskype.comdigicert.comqq.comt.mesentry.ioeuropa.euchatgpt.comvk.runic.ruvk.comtelegram.orgastrumu.ioreg.ruquickconnect.toafternic.comtwitch.tvcharter.netapplovin.comimdb.comalidns.comtelegram.mesteampowered.comip-api.comalibaba.comcloudflareinsights.comweibo.comuserapi.comnflxvideo.netespn.comchatgpt.sitecheckpoint.comdell.comaliyun.comgo.comlive-video.netduckduckgo.com163.comline.mesteamcommunity.comtaobao.comdailymotion.comnetcraze.iosberbank.rueye4.cng.pageyahoo.co.jplijit.comdropcatch.comshare.googleshop.appmega.co.nzcapcut.comfast.comslideshare.netthreads.com3lift.comsohu.comtime.comadsrvr.orgieee.orgvercel.appcloudns.netcrpt.ruonetrust.combox.comhstgr.netamazon.ingosuslugi.rulemonde.frfb.comnetflix.netbeget.rucertcenter.comamazon.esoutbrain.combinance.comcookielaw.orgpinimg.comshopee.co.idhihonorcloud.comrustore.rucursor.shviber.comshopee.com.brimgur.comagora.iowp.pla-mo.netteads.tvusps.comimgsmail.ruparklogic.comonetag-sys.comcoupang.comyouku.compbs.orglowes.comjd.comsynology.com
Popular sites that pass (440)
google.comcloudflare.comamazonaws.comyoutube.commicrosoft.comapple.comtwitter.comlinkedin.comazure.comtriplinkintl.comgooglevideo.comamazon.comgithub.comlsrelayaccess.comwikipedia.orgfastly.netdzen.ruwhatsapp.netbing.comx.comdoubleclick.netgooglesyndication.comyoutu.bewindows.neticloud.comzoom.usadobe.comwhatsapp.comwordpress.orggandi.netyahoo.comgoogledomains.comwa.mespotify.comopera.comb-cdn.netroblox.comamazonvideo.comvimeo.comntp.orgworkers.devbaidu.comblogspot.commozilla.orgnginx.orgmsn.comf5.comt-online.dewordpress.comlencr.orgnginx.comyandex.netui.combit.lyyandex.rusamsung.comadobe.ioipify.orggithub.iodropbox.comregistrar-servers.comandroid.comwindows.comcloudflare-dns.comduckdns.orgapache.orgskybridge.clickdiscord.ggarchive.orgtelekom.netcrashlytics.comnytimes.comsnapchat.comsamsungcloud.comubuntu.comgravatar.commeraki.comshopify.compages.devgoogle-analytics.comexample.comcreativecommons.orgflickr.comforter.comdiscord.comscorecardresearch.comw3.orgcnn.comkaspersky.compki.googbrave.comsoundcloud.comtheguardian.comunity3d.comdoi.orghcaptcha.comstripe.comoracle.compublicnode.combbc.comroku.comwikimedia.orgmts.ruweather.comamplitude.comcriteo.commit.edunist.govbbc.co.ukcisco.comt.coadtrafficquality.googlesourceforge.netdnsmadeeasy.comsalesforce.comcpanel.nethubspot.comlinktr.eegoogleblog.comwho.intdatadoghq.comcentinel-analytica.comslack.comhp.comlaunchdarkly.combooking.comlaunchpad.netnature.comwww.gov.uktinyurl.comgamepass.comonelink.megrammarly.comspringer.commiui.comwiley.comcasalemedia.comanthropic.comzendesk.comdebian.orgvungle.comamazon.co.ukharvard.edurubiconproject.comphp.netunisys.compaloaltonetworks.comok.runaver.comsmartadserver.com
And 290 more. The full list is in the data file.
How this was measured
The figure comes from Adnave's own audits of 551 popular websites, each read as a search engine first receives it and re-checked about once a month. A site “falls short” when the result is anything other than a pass. That is not always a mistake: a very large site may skip something on purpose. Sites that refuse automated visits are not in the sample, so the figure describes the popular sites that could be read, not the whole web. Full method and limits
Put this figure on your own page
The picture is drawn fresh from our data, so it stays up to date wherever you place it. Free to use; the code links back to this page as the source.
<a href="https://adnave.com/research/stats/not-found"><img src="https://adnave.com/embed/not-found.svg" alt="Share of the world's top websites that pass the check “Missing pages return “not found””. Live figure by Adnave." width="480" height="200" loading="lazy"></a>
Use this figure
Free to quote, chart and republish with a link to this page. Check the page before quoting: the figure moves as sites are re-audited.
Suggested citation: Adnave, “Missing pages return “not found”: how the world's top websites do”, https://adnave.com/research/stats/not-found
Download the data (CSV)