Microsoft SSL certificate status
Valid — 119 days until expiry(microsoft.com)
This page shows the Microsoft SSL certificate as served by microsoft.com, read from a live TLS handshake by an independent CertPost probe and rechecked hourly: expiry, issuer, hostname coverage, the full chain, and the negotiated protocol.
Last checked 2026-08-23 00:55 UTC. CertPost is not affiliated with Microsoft.
Certificate details
Hostnames this certificate covers
microsoft.com, s.microsoft.com, ga.microsoft.com, aep.microsoft.com, aer.microsoft.com, grv.microsoft.com, hup.microsoft.com, mac.microsoft.com, mkb.microsoft.com, pme.microsoft.com, pmi.microsoft.com, rss.microsoft.com, sar.microsoft.com, tco.microsoft.com, fuse.microsoft.com, ieak.microsoft.com, mac2.microsoft.com, mcsp.microsoft.com, open.microsoft.com, shop.microsoft.com, spur.microsoft.com, itpro.microsoft.com, mango.microsoft.com, music.microsoft.com, pymes.microsoft.com, store.microsoft.com, aether.microsoft.com, alerts.microsoft.com, design.microsoft.com, garage.microsoft.com, gigjam.microsoft.com, msctec.microsoft.com, online.microsoft.com, stream.microsoft.com, afflink.microsoft.com, connect.microsoft.com, develop.microsoft.com, domains.microsoft.com, example.microsoft.com, madeira.microsoft.com, msdnisv.microsoft.com, mspress.microsoft.com, www.aep.microsoft.com, www.aer.microsoft.com, wwwbeta.microsoft.com, business.microsoft.com, empresas.microsoft.com, learning.microsoft.com, msdnwiki.microsoft.com, openness.microsoft.com, pinpoint.microsoft.com, snackbox.microsoft.com, sponsors.microsoft.com, stationq.microsoft.com, aistories.microsoft.com, community.microsoft.com, crawlmsdn.microsoft.com, iotschool.microsoft.com, messenger.microsoft.com, minecraft.microsoft.com, backoffice.microsoft.com, enterprise.microsoft.com, iotcentral.microsoft.com, pinunblock.microsoft.com, reroute443.microsoft.com, communities.microsoft.com, explore-smb.microsoft.com, expressions.microsoft.com, ondernemers.microsoft.com, techacademy.microsoft.com, terraserver.microsoft.com, communities2.microsoft.com, connectevent.microsoft.com, dataplatform.microsoft.com, entrepreneur.microsoft.com, hxd.research.microsoft.com, mspartnerira.microsoft.com, mydatahealth.microsoft.com, oemcommunity.microsoft.com, real-stories.microsoft.com, www.formspro.microsoft.com, futuredecoded.microsoft.com, upgradecenter.microsoft.com, learnanalytics.microsoft.com, onlinelearning.microsoft.com, businesscentral.microsoft.com, cloud-immersion.microsoft.com, studentpartners.microsoft.com, analyticspartner.microsoft.com, businessplatform.microsoft.com, explore-security.microsoft.com, kleinunternehmen.microsoft.com, partnercommunity.microsoft.com, explore-marketing.microsoft.com, innovationcontest.microsoft.com, partnerincentives.microsoft.com, phoenixcataloguat.microsoft.com, szkolyprzyszlosci.microsoft.com, www.powerautomate.microsoft.com, successionplanning.microsoft.com, lumiaconversationsuk.microsoft.com, successionplanninguat.microsoft.com, businessmobilitycenter.microsoft.com, skypeandteams.fasttrack.microsoft.com, www.microsoftdlapartnerow.microsoft.com, commercialappcertification.microsoft.com, www.skypeandteams.fasttrack.microsoft.com, ceoconnections.event.microsoft.com, biz4afrika.microsoft.com, cashback.microsoft.com, www.cashback.microsoft.com, visio.microsoft.com, insidemsr.microsoft.com, developervelocityassessment.com, www.developervelocityassessment.com, gears5.com, www.gears5.com, www.gearstactics.com, gearstactics.com, m12.microsoft.com, seeingai.com, yourchoice.microsoft.com, mvtd.events.microsoft.com, imagine.microsoft.com, microsoft.com.au, www.microsoft.com.au, dynamics.microsoft.com, powerplatform.microsoft.com, powerapps.microsoft.com, powerautomate.microsoft.com, powervirtualagents.microsoft.com, powerpages.microsoft.com, test.ideas.fabric.microsoft.com, sds.microsoft.com, ppe.sds.microsoft.com, www.microsoft365copilot.com, www.jclarity.com, techinnovatorsspotlight.com, www.techinnovatorsspotlight.com, copilot.ai, getlicensingready.com, www.getlicensingready.com, jpn.delve.office.com, aus.delve.office.com, ind.delve.office.com, kor.delve.office.com, cobra.me.microsoft.com, www.businesscentral.com, businesscentral.com, msaidatastudio.officeppe.net, ideas.fabric.microsoft.com, www.cpt.link, cpt.link, yarp.dot.net, microsoftstream.com, www.microsoftstream.com, web.microsoftstream.com, discover.copilot.ai, copilot.com, www.copilot.com, discover.copilot.com, researchforum.microsoft.com, cdn.techcommunity.microsoft.com
Certificate chain as served
Common questions
Is the Microsoft SSL certificate expired?
At the last check, the certificate microsoft.com serves was within its validity period. It expires on 2026-12-20, 119 days from that check.
When does the Microsoft SSL certificate expire?
The certificate microsoft.com is currently serving expires on 2026-12-20 (119 days from the last check). Large services rotate certificates long before that date.
Who issued the Microsoft SSL certificate?
The certificate was issued by Microsoft TLS G2 RSA CA OCSP 04.
How is this checked?
A CertPost probe opens a real TLS connection to microsoft.com on port 443 and reads the certificate the server presents, the same way a browser does. The result is cached and refreshed hourly.
Microsoft rotates certificates without downtime. Your own domains are the ones that expire quietly — watch 3 free, no card.
Monitor your certificatesOr run a one-off check with the free SSL checker.