Check-Host.cc

Domain

designer.microsoft.com

Aggregated from public BGP, CT logs, our scan layer, honeypots and global probes.

Run a live full scan of designer.microsoft.com

On-demand: ports, banners, TLS, tech-stack, subdomains and origin/IP-leak detection. Results are shared publicly for everyone to link to.

Deep-scan now
Hosting IPs
25
A/AAAA targets
Subdomains
CT + scan + body
Record Types
2
seen in DNS
Observed Certs
13
in our scans

DNS Records

A
184.24.167.5, 23.196.244.39, 23.206.23.40, 23.210.117.121, 23.215.21.54, 23.218.53.240, 23.33.192.39, 23.45.103.158
AAAA
2600:1408:c400:38b::f6f, 2600:1408:c400:396::f6f, 2600:1408:ec00:281::f6f, 2600:1408:ec00:286::f6f, 2a02:26f0:1180:186::f6f, 2a02:26f0:1180:199::f6f, 2a02:26f0:1180:89d::f6f, 2a02:26f0:1180:8b7::f6f
MX
NS
TXT
CNAME
CAA

WHOIS / Registration

Registration data planned

Registrar, creation/expiry dates and domain status via RDAP. Rolling out gradually — bulk WHOIS is rate-limited, so we resolve on a prioritized cadence.

Subdomains

Subdomain enumeration pending

Every subdomain ever issued a TLS cert under this apex — extracted from Certificate Transparency logs, our own scan observations and body references.

Tech Stack

Tech detection pending

Wappalyzer-rules detect CMS, frameworks, analytics, JS libs and server-side languages on this domain.

TLS Certificates

Subject: cdn.designerapp.osi.office.net
Issuer: Microsoft TLS G2 ECC CA OCSP 06
SANs: *.designer.cloud.microsoft, *.designer.microsoft.com, cdn.designerapp.osi.office.net, cdn.edog.designerapp.osi.office.net, cdn.int.designerapp.osi.office.net, designer-df.microsoft.com, designer-int.microsoft.com, designer.cloud.microsoft, designer.microsoft.com
Subject: cdn.designerapp.osi.office.net
Issuer: Microsoft TLS G2 ECC CA OCSP 06
SANs: *.designer.cloud.microsoft, *.designer.microsoft.com, cdn.designerapp.osi.office.net, cdn.edog.designerapp.osi.office.net, cdn.int.designerapp.osi.office.net, designer-df.microsoft.com, designer-int.microsoft.com, designer.cloud.microsoft, designer.microsoft.com
Subject: cdn.designerapp.osi.office.net
Issuer: Microsoft TLS G2 ECC CA OCSP 06
SANs: *.designer.cloud.microsoft, *.designer.microsoft.com, cdn.designerapp.osi.office.net, cdn.edog.designerapp.osi.office.net, cdn.int.designerapp.osi.office.net, designer-df.microsoft.com, designer-int.microsoft.com, designer.cloud.microsoft, designer.microsoft.com
Subject: cdn.designerapp.osi.office.net
Issuer: Microsoft TLS G2 ECC CA OCSP 06
SANs: *.designer.cloud.microsoft, *.designer.microsoft.com, cdn.designerapp.osi.office.net, cdn.edog.designerapp.osi.office.net, cdn.int.designerapp.osi.office.net, designer-df.microsoft.com, designer-int.microsoft.com, designer.cloud.microsoft, designer.microsoft.com
Subject: cdn.designerapp.osi.office.net
Issuer: Microsoft TLS G2 ECC CA OCSP 06
SANs: *.designer.cloud.microsoft, *.designer.microsoft.com, cdn.designerapp.osi.office.net, cdn.edog.designerapp.osi.office.net, cdn.int.designerapp.osi.office.net, designer-df.microsoft.com, designer-int.microsoft.com, designer.cloud.microsoft, designer.microsoft.com
Subject: cdn.designerapp.osi.office.net
Issuer: Microsoft TLS G2 ECC CA OCSP 06
SANs: *.designer.cloud.microsoft, *.designer.microsoft.com, cdn.designerapp.osi.office.net, cdn.edog.designerapp.osi.office.net, cdn.int.designerapp.osi.office.net, designer-df.microsoft.com, designer-int.microsoft.com, designer.cloud.microsoft, designer.microsoft.com
Subject: cdn.designerapp.osi.office.net
Issuer: Microsoft TLS G2 ECC CA OCSP 06
SANs: *.designer.cloud.microsoft, *.designer.microsoft.com, cdn.designerapp.osi.office.net, cdn.edog.designerapp.osi.office.net, cdn.int.designerapp.osi.office.net, designer-df.microsoft.com, designer-int.microsoft.com, designer.cloud.microsoft, designer.microsoft.com
Subject: cdn.designerapp.osi.office.net
Issuer: Microsoft TLS G2 ECC CA OCSP 06
SANs: *.designer.cloud.microsoft, *.designer.microsoft.com, cdn.designerapp.osi.office.net, cdn.edog.designerapp.osi.office.net, cdn.int.designerapp.osi.office.net, designer-df.microsoft.com, designer-int.microsoft.com, designer.cloud.microsoft, designer.microsoft.com
Subject: cdn.designerapp.osi.office.net
Issuer: Microsoft TLS G2 ECC CA OCSP 06
SANs: *.designer.cloud.microsoft, *.designer.microsoft.com, cdn.designerapp.osi.office.net, cdn.edog.designerapp.osi.office.net, cdn.int.designerapp.osi.office.net, designer-df.microsoft.com, designer-int.microsoft.com, designer.cloud.microsoft, designer.microsoft.com
Subject: cdn.designerapp.osi.office.net
Issuer: Microsoft TLS G2 ECC CA OCSP 06
SANs: *.designer.cloud.microsoft, *.designer.microsoft.com, cdn.designerapp.osi.office.net, cdn.edog.designerapp.osi.office.net, cdn.int.designerapp.osi.office.net, designer-df.microsoft.com, designer-int.microsoft.com, designer.cloud.microsoft, designer.microsoft.com
Subject: cdn.designerapp.osi.office.net
Issuer: Microsoft TLS G2 ECC CA OCSP 06
SANs: *.designer.cloud.microsoft, *.designer.microsoft.com, cdn.designerapp.osi.office.net, cdn.edog.designerapp.osi.office.net, cdn.int.designerapp.osi.office.net, designer-df.microsoft.com, designer-int.microsoft.com, designer.cloud.microsoft, designer.microsoft.com
Subject: cdn.designerapp.osi.office.net
Issuer: Microsoft TLS G2 ECC CA OCSP 06
SANs: *.designer.cloud.microsoft, *.designer.microsoft.com, cdn.designerapp.osi.office.net, cdn.edog.designerapp.osi.office.net, cdn.int.designerapp.osi.office.net, designer-df.microsoft.com, designer-int.microsoft.com, designer.cloud.microsoft, designer.microsoft.com
Subject: cdn.designerapp.osi.office.net
Issuer: Microsoft TLS G2 ECC CA OCSP 06
SANs: *.designer.cloud.microsoft, *.designer.microsoft.com, cdn.designerapp.osi.office.net, cdn.edog.designerapp.osi.office.net, cdn.int.designerapp.osi.office.net, designer-df.microsoft.com, designer-int.microsoft.com, designer.cloud.microsoft, designer.microsoft.com
Subject: cdn.designerapp.osi.office.net
Issuer: Microsoft TLS G2 ECC CA OCSP 06
SANs: *.designer.cloud.microsoft, *.designer.microsoft.com, cdn.designerapp.osi.office.net, cdn.edog.designerapp.osi.office.net, cdn.int.designerapp.osi.office.net, designer-df.microsoft.com, designer-int.microsoft.com, designer.cloud.microsoft, designer.microsoft.com
Subject: cdn.designerapp.osi.office.net
Issuer: Microsoft TLS G2 ECC CA OCSP 06
SANs: *.designer.cloud.microsoft, *.designer.microsoft.com, cdn.designerapp.osi.office.net, cdn.edog.designerapp.osi.office.net, cdn.int.designerapp.osi.office.net, designer-df.microsoft.com, designer-int.microsoft.com, designer.cloud.microsoft, designer.microsoft.com
Subject: cdn.designerapp.osi.office.net
Issuer: Microsoft TLS G2 ECC CA OCSP 06
SANs: *.designer.cloud.microsoft, *.designer.microsoft.com, cdn.designerapp.osi.office.net, cdn.edog.designerapp.osi.office.net, cdn.int.designerapp.osi.office.net, designer-df.microsoft.com, designer-int.microsoft.com, designer.cloud.microsoft, designer.microsoft.com
Subject: cdn.designerapp.osi.office.net
Issuer: Microsoft TLS G2 ECC CA OCSP 06
SANs: *.designer.cloud.microsoft, *.designer.microsoft.com, cdn.designerapp.osi.office.net, cdn.edog.designerapp.osi.office.net, cdn.int.designerapp.osi.office.net, designer-df.microsoft.com, designer-int.microsoft.com, designer.cloud.microsoft, designer.microsoft.com
Subject: cdn.designerapp.osi.office.net
Issuer: Microsoft TLS G2 ECC CA OCSP 06
SANs: *.designer.cloud.microsoft, *.designer.microsoft.com, cdn.designerapp.osi.office.net, cdn.edog.designerapp.osi.office.net, cdn.int.designerapp.osi.office.net, designer-df.microsoft.com, designer-int.microsoft.com, designer.cloud.microsoft, designer.microsoft.com
Subject: NrocServerProxy
Issuer: NrocProxy
SANs: *.1min.ai, *.chatbotapp.ai, *.oaiusercontent.com, *.sharepoint.com, 1min.ai, account.topazlabs.com, account.voicemod.net, af.articleforge.com, ai-writer.com, ai.egain.cloud, ai.invideo.io, aichatapp.ai, aihumanize.io, ailessonplan.com, aipoemgenerator.org, aiwritingpal.com, allenai.org, api.anthropic.com, api.business.githubcopilot.com, api2.cursor.sh, app-eu1.hubspot.com, app-na1.hubspotdocuments.com, app.attio.com, app.beehiiv.com, app.boords.com, app.botpress.cloud, app.chat360.io, app.chatbot.com, app.chatling.ai, app.copilotly.com, app.copy.ai, app.fastbots.ai, app.fireflies.ai, app.fyxer.com, app.glean.com, app.gokite.ai, app.grammarly.com, app.heygen.com, app.hubspot.com, app.instantly.ai, app.iokoo.co, app.jasper.ai, app.jinnify.ai, app.klingai.com, app.koah.ai, app.leonardo.ai, app.manychat.com, app.napkin.ai, app.neuroflash.com, app.otterly.ai, app.quickchat.ai, app.raffle.ai, app.read.ai, app.snoooz.ai, app.speechify.com, app.synthesia.io, app.taplio.com, app.transpond.io, app.uizard.io, app.wonderchat.io, app.wordplay.ai, app.wordtune.com, app.writecream.com, app.writeme.ai, app.writer.com, app.writerx.co, app.writesonic.com, app.zomani.ai, archie-app.8base.com, archie.8base.com, arena.ai, articlefiesta.com, artlist.io, askaichat.app, async.com, attio.com, bearly.ai, beyondwords.io, bolt.new, boords.com, botpress.com, bottalk.io, brainly.com, bubble.io, build.fillout.com, character.ai, chat.aichatapp.ai, chat.chatbot.app, chat.chaton.ai, chat.deepseek.com, chat.mistral.ai, chat.qwen.ai, chat.webllm.ai, chatbot.app, chatbotapp.ai, chatgpt.com, chatjimmy.ai, chatling.ai, chaton.ai, chatty.net, chatx.ai, claude.ai, clawbot.ai, clip.opus.pro, cloud.yellow.ai, coda.grammarly.com, codepal.ai, console.groq.com, copilot.cloud.microsoft, copilot.microsoft.com, copymonkey.ai, creator.voiceflow.com, dashboard.browse.ai, dashboard.gptforwork.com, dashboard.mintlify.com, dashboard.scale.com, dashboard.searchatlas.com, decisioninsights.ai, deevid.ai, deliciousai.com, designer.microsoft.com, docs.gokite.ai, docsbot.ai, dream-machine.lumalabs.ai, duck.ai, durable.com, edgeservices.bing.com, eightfold.ai, elevenlabs.io, eu.smith.langchain.com, eu1-app.outplayhq.com, fastbots.ai, fellow.ai, files.oaiusercontent.com, filmora.wondershare.com, fireflies.ai, firefly.adobe.com, forethought.ai, framer.com, gamma.app, gemini.google.com, gencraft.com, genny.lovo.ai, gliacloud.com, go.anyword.com, go.socrates.im, gokite.ai, gptexcel.uk, gptforwork.com, graph.microsoft.com, grok.com, grokipedia.com, groq.com, heygpt.chat, hpanel.hostinger.com, hub.yarnit.app, huggingface.co, imglarger.com, imgupscaler.com, instantly.ai, invideo.io, ivy.ai, jules.google.com, julius.ai, justdone.com, kaiber.ai, labs.google, leonardo.ai, lovable.dev, lovo.ai, lumalabs.ai, lumo.proton.me, m365.cloud.microsoft, manychat.com, meetami.ai, meetbetty.ai, mermaid.ai, metadata.io, mindtrip.ai, monica.im, my.writefull.com, nexverse.ai, notebooklm.google, notebooklm.google.com, notegpt.io, numerous.ai, ollama.com, openart.ai, openclaw.ai, openrouter.ai, otter.ai, otterly.ai, outlook.office.com, outplay.ai, panel.ai-writer.com, panel.tiledesk.com, picsart.com, platform.claude.com, platform.metadata.io, platform.thrads.ai, play.aidungeon.com, playground.allenai.org, push.clients6.google.com, quickchat.ai, quillbot.com, quiq.com, quizlet.com, raffle.ai, readalong.ai, replit.com, sales.meetami.ai, scale.com, scite.ai, searchatlas.com, sharepoint.com, shopcircle.co, sider.ai, slidebazaar.com, smilee.io, smith.langchain.com, smodin.io, snoooz.ai, socrates.im, solvely.ai, sourcegraph.com, sparkbase.ai, speechify.com, stablediffusionweb.com, studio.ai21.com, studio.wellsaidlabs.com, substrate.office.com, suno.ai, suno.com, sync.beatoven.ai, tactiq.io, taplio.com, tiledesk.com, toolkit.artlist.io, transpond.io, uizard.io, undetectable.ai, use.ai, vsco.co, warmer.ai, web.descript.com, webllm.mlc.ai, windsurf.com, wonderchat.io, wordplay.ai, workflos.ai, woxo.tech, writeme.ai, writer.com, writersbrew.app, writerx.co, writesonic.com, writier.io, ws.chatgpt.com, ws.readspeaker.com, www.3daistudio.com, www.acrolinx.com, www.admaster.cc, www.adventuregen.ai, www.ai21.com, www.aiisajoke.com, www.ailessonplan.com, www.aipoemgenerator.org, www.aiwritingpal.com, www.anyword.com, www.articleforge.com, www.ashbyhq.com, www.baidu.com, www.bearly.ai, www.beatoven.ai, www.beautiful.ai, www.beehiiv.com, www.beforesunset.ai, www.bettersynonyms.com, www.bingapis.com, www.bridged.media, www.browse.ai, www.cadent.com, www.canva.com, www.capcut.com, www.chat360.io, www.chatai.com, www.chatbot.com, www.chegg.com, www.cm.com, www.coframe.com, www.coloringbook.ai, www.commoninja.com, www.copilotly.com, www.copy.ai, www.coursehero.com, www.deepl.com, www.descript.com, www.digitalgenius.com, www.dola.com, www.doubao.com, www.egain.com, www.fillout.com, www.fotor.com, www.framer.com, www.freeconvert.com, www.freepik.com, www.fyxer.com, www.genspark.ai, www.getmerlin.in, www.getvera.ai, www.gokite.ai, www.grammarly.com, www.granola.ai, www.hostinger.com, www.humanizeai.pro, www.imglarger.com, www.jasper.ai, www.kaiber.ai, www.kimi.com, www.klaviyo.com, www.koahlabs.com, www.krikey.ai, www.labs.google, www.langchain.com, www.learnwise.ai, www.maxai.co, www.mermaidchart.com, www.midjourney.com, www.mintlify.com, www.monica.im, www.moonshot.ai, www.moonshot.cn, www.nexverse.ai, www.notion.so, www.octaneai.com, www.octocom.ai, www.ollama.com, www.opus.pro, www.otterly.ai, www.outrank.so, www.paradox.ai, www.pisano.com, www.pixa.com, www.quinta.im, www.rabbitholes.ai, www.read.ai, www.readspeaker.com, www.roomgpt.io, www.semrush.com, www.sharpennotes.com, www.shopbox.ai, www.smartling.com, www.suno.ai, www.synthesia.io, www.thrad.ai, www.tidio.com, www.topazlabs.com, www.veed.io, www.voiceflow.com, www.voicemod.net, www.vsco.co, www.wellsaid.io, www.wordtune.com, www.workmagic.io, www.writecream.com, www.writefull.com, www.yarnit.app, www.yeschat.ai, www.zeg.ai, www.zerogpt.com, www.zoovu.com, x.writefull.com, yellow.ai, zevbot.com, zomani.ai, zoovu.com

IPs Citing This Domain

Hosts whose HTML body references this domain. Strong signal for origin/mirror/embed discovery.

139.196.197.45:443 href · ×4
8.208.76.42:443 href · ×2
47.251.44.100:443 href · ×2
159.75.29.246:443 href · ×2
47.107.29.85:443 href · ×2
43.153.219.204:443 href · ×2
42.192.39.170:443 href · ×2
47.254.43.162:443 href · ×2
43.162.101.71:443 href · ×2
47.115.213.127:443 href · ×2
43.161.222.149:443 href · ×2
42.193.109.5:80 href · ×2
149.28.79.253:443 href · ×2
47.94.147.227:80 href · ×1
118.25.194.65:80 href · ×1
83.246.77.194:80 href · ×1
121.41.44.46:443 href · ×1
43.133.225.82:443 href · ×1

Origin / IP-Leak

USP

When a hostname is served behind a CDN (e.g. Cloudflare), the origin server can sometimes be identified by matching its TLS cert against the protected hostname. Findings shown here are heuristic candidates, not guarantees.

No origin-IP leaks detected (yet)

Either this domain doesn't sit behind a CDN, or we haven't seen a TLS cert from a non-CDN IP matching this hostname. Run a fullscan to refresh the cert→IP cross-reference.

CT-Log Evidence

Certificates from public Certificate Transparency logs whose subject or SAN names this domain — including historic certs we never observed live.

f4ad7826e031be2c… google · xenon2026h2
Subject: designer.microsoft.com
Issuer: Microsoft TLS G2 RSA CA OCSP 02
SANs: designer.microsoft.com
Valid: 2026-03-02 17:38:44 → 2026-08-29 17:38:44
a06360451c52c759… google · xenon2026h2
Subject: designer.microsoft.com
Issuer: Microsoft TLS G2 RSA CA OCSP 04
SANs: designer.microsoft.com
Valid: 2026-02-24 23:42:40 → 2026-08-23 23:42:40
60684e751a1b0ef7… google · xenon2026h2
Subject: designer.microsoft.com
Issuer: Microsoft Azure RSA TLS Issuing CA 07
SANs: designer.microsoft.com
Valid: 2026-02-23 21:58:21 → 2026-08-22 21:58:21
2ea10156be8cb576… google · xenon2026h2
Subject: designer.microsoft.com
Issuer: Microsoft Azure RSA TLS Issuing CA 04
SANs: designer.microsoft.com
Valid: 2026-02-04 19:13:55 → 2026-08-03 19:13:55
6f368932d381a151… google · xenon2026h2
Subject: cdn.designerapp.osi.office.net
Issuer: Microsoft Azure RSA TLS Issuing CA 07
SANs: *.designer.cloud.microsoft, *.designer.microsoft.com, cdn.designerapp.osi.office.net, cdn.edog.designerapp.osi.office.net, cdn.int.designerapp.osi.office.net, designer-df.microsoft.com, designer-int.microsoft.com, designer.cloud.microsoft, designer.microsoft.com
Valid: 2026-02-03 01:10:30 → 2026-08-25 23:59:59
78cd1f2c5e4bedbf… google · xenon2026h2
Subject: cdn.designerapp.osi.office.net
Issuer: Microsoft Azure ECC TLS Issuing CA 04
SANs: *.designer.cloud.microsoft, *.designer.microsoft.com, cdn.designerapp.osi.office.net, cdn.edog.designerapp.osi.office.net, cdn.int.designerapp.osi.office.net, designer-df.microsoft.com, designer-int.microsoft.com, designer.cloud.microsoft, designer.microsoft.com
Valid: 2026-02-03 01:09:21 → 2026-08-25 23:59:59
e1f66f258fdcd362… google · xenon2026h2
Subject: cdn.designerapp.osi.office.net
Issuer: Microsoft Azure ECC TLS Issuing CA 04
SANs: *.designer.cloud.microsoft, *.designer.microsoft.com, cdn.designerapp.osi.office.net, cdn.edog.designerapp.osi.office.net, cdn.int.designerapp.osi.office.net, designer-df.microsoft.com, designer-int.microsoft.com, designer.cloud.microsoft, designer.microsoft.com
Valid: 2026-02-03 01:09:21 → 2026-08-25 23:59:59

Threat Intelligence

Domain threat-intel pending

Matches in URLhaus, OpenPhish, PhishTank, malware feeds, and Spamhaus DBL.

History

Passive DNS — every value this name ever resolved to and when we first / last observed it. Updates every cycle of our forward-DNS crawler.

Type Value First seen Last seen
A 23.196.244.39 2026-05-26 03:46:08.458 2026-07-26 13:05:23.356
AAAA 2a02:26f0:e600:582::f6f 2026-05-26 03:46:08.458 2026-06-18 19:32:42.445
AAAA 2a02:26f0:e600:586::f6f 2026-05-26 03:46:08.458 2026-06-18 19:32:42.445
AAAA 2a02:26f0:280:19f::f6f 2026-05-26 03:50:49.068 2026-05-26 03:50:49.068
AAAA 2a02:26f0:280:183::f6f 2026-05-26 03:50:49.068 2026-05-26 03:50:49.068
A 23.215.21.54 2026-05-26 04:11:07.627 2026-07-22 23:15:05.493
AAAA 2a02:26f0:480:597::f6f 2026-05-26 04:11:07.627 2026-07-27 07:19:40.268
AAAA 2a02:26f0:480:5aa::f6f 2026-05-26 04:11:07.627 2026-07-27 07:19:40.268
A 23.210.117.121 2026-05-26 09:16:04.756 2026-07-25 03:15:12.002
AAAA 2a02:26f0:1700:494::f6f 2026-05-26 19:57:58.828 2026-05-26 19:57:58.828
A 23.206.23.40 2026-05-26 19:57:58.828 2026-06-21 02:52:06.865
AAAA 2a02:26f0:1700:493::f6f 2026-05-26 19:57:58.828 2026-05-26 19:57:58.828
A 23.55.225.123 2026-05-26 22:05:29.806 2026-07-25 20:19:20.798
AAAA 2a02:26f0:1180:186::f6f 2026-06-14 23:07:05.130 2026-07-28 18:18:26.354
AAAA 2a02:26f0:1180:199::f6f 2026-06-14 23:07:05.130 2026-07-28 18:18:26.354
A 23.218.53.240 2026-06-14 23:07:05.130 2026-07-17 14:55:47.848
A 184.24.167.5 2026-06-17 03:05:51.628 2026-07-28 18:18:26.354
A 23.33.192.39 2026-07-17 01:54:58.553 2026-07-17 01:54:58.553
AAAA 2600:1408:ec00:286::f6f 2026-07-22 23:15:05.493 2026-07-22 23:15:05.493
AAAA 2600:1408:ec00:281::f6f 2026-07-22 23:15:05.493 2026-07-22 23:15:05.493
AAAA 2a02:26f0:1180:8b7::f6f 2026-07-23 18:57:54.174 2026-07-23 18:57:54.174
AAAA 2a02:26f0:1180:89d::f6f 2026-07-23 18:57:54.174 2026-07-23 18:57:54.174
AAAA 2600:1408:c400:396::f6f 2026-07-25 05:45:27.931 2026-07-25 05:45:27.931
AAAA 2600:1408:c400:38b::f6f 2026-07-25 05:45:27.931 2026-07-25 05:45:27.931
A 23.45.103.158 2026-07-27 07:19:40.268 2026-07-27 07:19:40.268