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Compression switched on: how the world's top websites do
Of 551 of the world's most popular websites that we audited, 500 pass this check and 51 fall short.
91%
pass
500 of 551 sites
9%
fall short
51 of 551 sites
39 of 51
by how often it fails
1 is the most-failed check · area: Speed
What this check means
Compression (gzip or Brotli) shrinks text files in transit, usually by more than two thirds, at almost no cost.
Guide: Core Web Vitals: how to make a slow website fast
Popular sites that fall short (51)
amazon.comlsrelayaccess.comdigicert.comntp.orgskybridge.clicknic.ruflickr.comscorecardresearch.comreg.ruimdb.combooking.comamazon.co.ukespn.comdynatrace.comun.orgamazon.deopendns.comnetcraze.ioarxiv.orgscribd.comtplinkcloud.comamzn.totaboola.commega.co.nzamagi.tvicloud-content.com3lift.com360yield.comadsrvr.orgieee.orgamazon.caverisign.comloc.govgosuslugi.rucertcenter.comalipaydns.comamazon.esbinance.comamazon.it360.cnhihonorcloud.comimgur.coma-mo.netahacdn.meamazon.com.brunrulymedia.comappcenter.mscoupang.comamazon.com.auwashington.edun-tv.de
Popular sites that pass (500)
google.comcloudflare.comamazonaws.comfacebook.comfbcdn.netyoutube.commicrosoft.comapple.comtwitter.comlinkedin.comazure.comtriplinkintl.comgooglevideo.commail.ruoffice.comlive.comgithub.comcloud.microsoftwikipedia.orgfastly.netnetflix.comdzen.ruwhatsapp.netbing.comx.comdoubleclick.netgooglesyndication.comyoutu.bepinterest.comwindows.neticloud.commyfritz.netzoom.usadobe.comtiktok.comwhatsapp.comwordpress.orggandi.netyahoo.comgoogledomains.comwa.meskype.comspotify.comopera.comb-cdn.netroblox.comamazonvideo.comvimeo.comworkers.devbaidu.comblogspot.comqq.commozilla.orgnginx.orgmsn.comf5.comt-online.dewordpress.comt.mesentry.iolencr.orgnginx.comyandex.netui.comeuropa.euchatgpt.combit.lyyandex.rusamsung.comadobe.ioipify.orggithub.iodropbox.comregistrar-servers.comandroid.comwindows.comcloudflare-dns.comduckdns.orgapache.orgdiscord.ggarchive.orgvk.rutelekom.netcrashlytics.comnytimes.comsnapchat.comvk.comtelegram.orgsamsungcloud.comubuntu.comgravatar.commeraki.comshopify.compages.devastrumu.iogoogle-analytics.comexample.comcreativecommons.orgforter.comdiscord.comw3.orgcnn.comquickconnect.tokaspersky.compki.googbrave.comsoundcloud.comtheguardian.comunity3d.comdoi.orghcaptcha.comafternic.comstripe.comoracle.compublicnode.combbc.comroku.comwikimedia.orgmts.ruweather.comamplitude.comcriteo.comtwitch.tvmit.edunist.govcharter.netbbc.co.ukapplovin.comcisco.comt.coadtrafficquality.googlesourceforge.netdnsmadeeasy.comsalesforce.comcpanel.nethubspot.comlinktr.eegoogleblog.comwho.intalidns.comdatadoghq.comcentinel-analytica.comslack.comhp.comlaunchdarkly.comtelegram.melaunchpad.netnature.comwww.gov.uksteampowered.com
And 350 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
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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/compression"><img src="https://adnave.com/embed/compression.svg" alt="Share of the world's top websites that pass the check “Compression switched on”. Live figure by Adnave." width="480" height="200" loading="lazy"></a>
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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, “Compression switched on: how the world's top websites do”, https://adnave.com/research/stats/compression
Download the data (CSV)