Domain diagnostics x.com

Diagnose potential problems with a given domain.

You can bookmark this utility as diag.domains.

Global nameservers

Google Public DNS

a.u10.twtrdns.net (2023121201, TTL: 300)

Cloudflare DNS

a.u10.twtrdns.net (2023121201, TTL: 300)

Quad9

a.u10.twtrdns.net (2023121201, TTL: 273)

ns1.simply.com

DNS request failed: The name server refuses to perform the specified operation for policy reasons.

ns2.simply.com

DNS request failed: The name server refuses to perform the specified operation for policy reasons.

ns3.simply.com

DNS request failed: The name server refuses to perform the specified operation for policy reasons.

External tests

DNS zone As seen by Google Public DNS

Webservers

x.com
Host Target Reverse
x.com 172.66.0.227 -
www.x.com
Host Target Reverse
www.x.com CNAME x.com -
x.com 172.66.0.227 -
www.x.com CNAME IPv6 x.com -

Inbound mail

Host # Target IP Reverse
x.com 1 aspmx.l.google.com 142.250.147.27 ei-in-f26.1e100.net
x.com 5 alt2.aspmx.l.google.com 142.250.157.26 ta-in-f26.1e100.net
x.com 5 alt1.aspmx.l.google.com 74.125.200.26 sa-in-f27.1e100.net
x.com 10 alt4.aspmx.l.google.com 142.250.141.27 dd-in-f27.1e100.net
x.com 10 alt3.aspmx.l.google.com 173.194.202.26 pf-in-f26.1e100.net

Outbound mail

SPF record

Value
v=spf1 ip4:199.16.156.0/22 ip4:199.59.148.0/22 include:_spf.google.com include:_spf.salesforce.com include:_oerp.x.com include:phx1.rp.oracleemaildelivery.com include:iad1.rp.oracleemaildelivery.com -all
No Simply.com SPF record found on x.com

DKIM record

No Simply.com DKIM record found on x.com

DMARC record

Name Value
_dmarc.x.com v=DMARC1; p=reject; rua=mailto:caf935f12c8645b2921b0749d1fcd49e@dmarc-reports.cloudflare.net

TXT records

Name Value
x.com atlassian-sending-domain-verification=bd424180-8645-4de5-bd6a-285479c7577a
x.com slack-domain-verification=Csk4bjCPFnJaDLLaKFUwCTFuUpCVvnYlAm2Tba0i
x.com google-site-verification=lEZNYWieV7-UbDJafAm0u_RvNFb7GGqIYWAP4JmG5qs
x.com google-site-verification=reUF-TgZq93ZGtzImw42sfYglI2hY0QiGRmfc4jeKbs
x.com apple-domain-verification=sEij6tJOW11fVNrG
x.com google-site-verification=F6u9mGL--d2lbLljvH3b1UUgXtevQPdcamKr9c8914A
x.com adobe-sign-verification=c693a744ee2d282a36a43e6e724c5ea
x.com adobe-idp-site-verification=ab4d9ce3473a73e81f46238da34ea4967fd5ac80e5c43fbfa8dff46d06a5321c
x.com kkdl3qb3tcrmdhfsm803p67r0my0svs8
x.com google-site-verification=8yQmoVhQedzlt36RPeQP41ytrEFk9aHEnde_xm0626g
x.com atlassian-domain-verification=j6u0o1PTkobCXC84uEF/sWpIPtaZURBVYqKzmTvT8wugLcHT1vvrzzA63iP1qSLN
x.com google-site-verification=rbRGYlOADDbtUYJTGd8GEDm0PwPZExviDSaSH4JLR8Q
x.com shopify-verification-code=cUZazKrqCWgcshrcGvgfFR1lieuhRF
x.com 3089463
x.com stripe-verification=46F7B88485621DC18923B43D12E90E6CDBCE232F2FEBCF084E6EFA91F6BA707D
x.com figma-domain-verification=ee8420edd01965ba297f3438c907cfc6fbbaa1ee90a07b28f28bcfca8e6017bb-1729630998
x.com SPF v=spf1 ip4:199.16.156.0/22 ip4:199.59.148.0/22 include:_spf.google.com include:_spf.salesforce.com include:_oerp.x.com include:phx1.rp.oracleemaildelivery.com include:iad1.rp.oracleemaildelivery.com -all
x.com _w548xs1kfxtlqk3jyx19bzwk34c473i

Nameservers

Host Nameserver
x.com d.r10.twtrdns.net
x.com a.r10.twtrdns.net
x.com b.u10.twtrdns.net
x.com c.r10.twtrdns.net
x.com a.u10.twtrdns.net
x.com b.r10.twtrdns.net
x.com d.u10.twtrdns.net
x.com c.u10.twtrdns.net

WHOIS

Domain Name: x.com
Registry Domain ID: 1026563_DOMAIN_COM-VRSN
Registrar WHOIS Server: whois.godaddy.com
Registrar URL: https://www.godaddy.com
Updated Date: 2024-12-03T16:03:36Z
Creation Date: 1993-04-02T00:00:00Z
Registrar Registration Expiration Date: 2034-10-20T14:56:17Z
Registrar: GoDaddy.com, LLC
Registrar IANA ID: 146
Registrar Abuse Contact Email: abuse -@- godaddy.com
Registrar Abuse Contact Phone: +1.4806242505
Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
Domain Status: clientUpdateProhibited https://icann.org/epp#clientUpdateProhibited
Domain Status: clientRenewProhibited https://icann.org/epp#clientRenewProhibited
Domain Status: clientDeleteProhibited https://icann.org/epp#clientDeleteProhibited
Registry Registrant ID: Not Available From Registry
Registrant Name: Registration Private
Registrant Organization: Domains By Proxy, LLC
Registrant Street: DomainsByProxy.com
Registrant Street: 100 S. Mill Ave, Suite 1600
Registrant City: Tempe
Registrant State/Province: Arizona
Registrant Postal Code: 85281
Registrant Country: US
Registrant Phone: +1.4806242599
Registrant Phone Ext:
Registrant Fax: 
Registrant Fax Ext:
Registrant Email: https://www.godaddy.com/whois/results.aspx?domain=x.com&action=contactDomainOwner
Registry Tech ID: Not Available From Registry
Tech Name: Registration Private
Tech Organization: Domains By Proxy, LLC
Tech Street: DomainsByProxy.com
Tech Street: 100 S. Mill Ave, Suite 1600
Tech City: Tempe
Tech State/Province: Arizona
Tech Postal Code: 85281
Tech Country: US
Tech Phone: +1.4806242599
Tech Phone Ext:
Tech Fax: 
Tech Fax Ext:
Tech Email: https://www.godaddy.com/whois/results.aspx?domain=x.com&action=contactDomainOwner
Name Server: A.U10.TWTRDNS.NET
Name Server: A.R10.TWTRDNS.NET
Name Server: B.U10.TWTRDNS.NET
Name Server: C.U10.TWTRDNS.NET
Name Server: D.U10.TWTRDNS.NET
Name Server: B.R10.TWTRDNS.NET
Name Server: C.R10.TWTRDNS.NET
Name Server: D.R10.TWTRDNS.NET
DNSSEC: unsigned
URL of the ICANN WHOIS Data Problem Reporting System: http://wdprs.internic.net/
>>> Last update of WHOIS database: 2025-05-10T15:02:50Z <<<
For more information on Whois status codes, please visit https://icann.org/epp

TERMS OF USE: The data contained in this registrar's Whois database, while believed by the
registrar to be reliable, is provided "as is" with no guarantee or warranties regarding its
accuracy. This information is provided for the sole purpose of assisting you in obtaining
information about domain name registration records. Any use of this data for any other purpose
is expressly forbidden without the prior written permission of this registrar. By submitting
an inquiry, you agree to these terms and limitations of warranty. In particular, you agree not
to use this data to allow, enable, or otherwise support the dissemination or collection of this
data, in part or in its entirety, for any purpose, such as transmission by e-mail, telephone,
postal mail, facsimile or other means of mass unsolicited, commercial advertising or solicitations
of any kind, including spam. You further agree not to use this data to enable high volume, automated
or robotic electronic processes designed to collect or compile this data for any purpose, including
mining this data for your own personal or commercial purposes. Failure to comply with these terms
may result in termination of access to the Whois database. These terms may be subject to modification
at any time without notice.

**NOTICE** This WHOIS server is being retired. Please use our RDAP service instead.

WHOIS result is cached for 15 minutes

HTTP trace

1
http://x.com
HTTP 301
162.159.140.229
Total time: 0.022s, Namelookup time: 0.004s, Connect time: 0.009s, Pre-transfer time: 0.009s, Start-transfer time: 0.022s, Redirect time: 0.000s, Transfer time: 0.022s 
HTTP/1.1 301 Moved Permanently
Date: Sat, 10 May 2025 15:02:50 GMT
Content-Type: text/html
Content-Length: 167
Connection: keep-alive
Cache-Control: max-age=3600
Expires: Sat, 10 May 2025 16:02:50 GMT
Location: https://x.com/
Set-Cookie: __cf_bm=vIkr46OzTGovZZW.NX3nHv4wVwo4SiKaSfI8_vEd2kg-1746889370-1.0.1.1-SCNot0qI9hCX3jKWdva56b_4Ydtu_Gtw5Xls1JnUtF3VhymzG7mVu0XvlQxNZ4WbtrV4N2GuTGkBkuxfYlgURmVAKBF1bgejMaE3.DiIqTs; path=/; expires=Sat, 10-May-25 15:32:50 GMT; domain=.x.com; HttpOnly
Server: cloudflare
CF-RAY: 93da51e7b8142c6c-CPH
2
https://x.com/
HTTP 400
162.159.140.229
Total time: 0.153s, Namelookup time: 0.004s, Connect time: 0.009s, Pre-transfer time: 0.022s, Start-transfer time: 0.153s, Redirect time: 0.000s, Transfer time: 0.153s 
HTTP/1.1 400 Bad Request
Date: Sat, 10 May 2025 15:02:50 GMT
Content-Type: text/html; charset=utf-8
Transfer-Encoding: chunked
Connection: keep-alive
perf: 7402827104
expiry: Tue, 31 Mar 1981 05:00:00 GMT
pragma: no-cache
Set-Cookie: guest_id=v1%3A174688937093018666; Max-Age=34214400; Expires=Wed, 10 Jun 2026 15:02:50 GMT; Path=/; Domain=.x.com; Secure; SameSite=None, ct0=; Max-Age=-1746889369; Expires=Thu, 01 Jan 1970 00:00:01 GMT; Path=/; Domain=.x.com; Secure; SameSite=Lax, __cf_bm=_jJyokEaSfsjyH5KdRYMzNstoyn2pCMU0K7yL71VSAM-1746889370-1.0.1.1-Z_u2WByFwIU1zPZP7WBpViypzEefZwrrLt9qzCPIjSJ_pHibwlUJEXvJ8o2qMGbLFAW1DOROP8JDb7jN_2tk.g6_DFVM.VhARamYvooOpGQ; path=/; expires=Sat, 10-May-25 15:32:50 GMT; domain=.x.com; HttpOnly; Secure; SameSite=None
x-powered-by: Express
Cache-Control: no-cache, no-store, must-revalidate, pre-check=0, post-check=0
last-modified: Sat, 10 May 2025 15:02:50 GMT
x-frame-options: DENY
x-transaction-id: b7360d9316b52894
x-xss-protection: 0
reporting-endpoints: coep-report="https://x.com/i/coep-report", coop-report="https://x.com/i/coop-report"
x-content-type-options: nosniff
content-security-policy: connect-src 'self' blob: https://fonts.googleapis.com/css https://mapsresources-pa.googleapis.com https://maps.googleapis.com https://www.gstatic.com/maps/ https://*.pscp.tv https://*.twimg.com https://*.video.pscp.tv https://aa.twitter.com https://aa.x.com https://accounts.google.com/gsi/ https://ads-api.twitter.com https://ads-api.x.com https://api-stream.twitter.com https://api-stream.x.com https://api.twitter.com https://api.x.ai https://api.x.com https://api.x.com https://caps.twitter.com https://caps.x.com https://grok.x.com https://jf.twitter.com https://jf.x.com https://jf-t.x.com https://pay.twitter.com https://pay.x.com https://sentry.io https://ton-staging.atla.twitter.com https://ton-staging.atla.x.com https://ton-staging.pdxa.twitter.com https://ton-staging.pdxa.x.com https://ton.twitter.com https://ton.x.com https://twitter.com https://upload.twitter.com https://upload.x.com https://www.google-analytics.com https://x.com https://*.adtrafficquality.google https://*.googlesyndication.com https://*.doubleclick.net https://adservice.google.com https://www.googleadservices.com https://pagead2.googlesyndication.com https://www.google.com https://google.com https://via.intercom.io https://api.intercom.io https://api.au.intercom.io https://api.eu.intercom.io https://api-iam.intercom.io https://api-iam.eu.intercom.io https://api-iam.au.intercom.io https://api-ping.intercom.io https://nexus-websocket-a.intercom.io wss://nexus-websocket-a.intercom.io https://nexus-websocket-b.intercom.io wss://nexus-websocket-b.intercom.io https://nexus-europe-websocket.intercom.io wss://nexus-europe-websocket.intercom.io https://nexus-australia-websocket.intercom.io wss://nexus-australia-websocket.intercom.io https://uploads.intercomcdn.com https://uploads.intercomcdn.eu https://uploads.au.intercomcdn.com https://uploads.eu.intercomcdn.com https://uploads.intercomusercontent.com https://production.plaid.com/ https://sandbox.plaid.com/ https://ingestion.dv.socure.io https://network.dv.socure.io/ https://analytics.dv.socure.io/ https://payments-dev.x.com/customer/wasm/forward-with-v1.wasm https://payments-staging.x.com/customer/wasm/forward-with-v1.wasm https://payments-prod.x.com/customer/wasm/forward-with-v1.wasm https://money-dev.x.com/customer/wasm/forward-with-v1.wasm https://money-staging.x.com/customer/wasm/forward-with-v1.wasm https://money.x.com/customer/wasm/forward-with-v1.wasm https://api.stripe.com https://checkoutshopper-live.adyen.com wss://*.pscp.tv https://vmap.snappytv.com https://vmapstage.snappytv.com https://vmaprel.snappytv.com https://vmap.grabyo.com https://dhdsnappytv-vh.akamaihd.net https://pdhdsnappytv-vh.akamaihd.net https://mdhdsnappytv-vh.akamaihd.net https://mdhdsnappytv-vh.akamaihd.net https://mpdhdsnappytv-vh.akamaihd.net https://mmdhdsnappytv-vh.akamaihd.net https://mdhdsnappytv-vh.akamaihd.net https://mpdhdsnappytv-vh.akamaihd.net https://mmdhdsnappytv-vh.akamaihd.net https://dwo3ckksxlb0v.cloudfront.net https://media.riffsy.com https://*.giphy.com https://media.tenor.com https://c.tenor.com wss://chat-ws.x.com https://d1muhwhmpsz4u8.cloudfront.net/ https://d2bchqfeno8n2m.cloudfront.net/ https://d2shtph9y6bxk.cloudfront.net/ https://xchat-hsm-staging.x.com/ https://realm-a.x.com https://realm-b.x.com https://realm-west1.x.com https://realm-east1.x.com https://hsm-staging.x.com https://ads-twitter.com https://analytics.twitter.com https://analytics.x.com         ; default-src 'self'; form-action 'self' https://twitter.com https://*.twitter.com https://x.com https://*.x.com https://localhost.twitter.com:3443 https://localhost.x.com:3443 https://intercom.help https://api-iam.intercom.io https://api-iam.eu.intercom.io https://api-iam.au.intercom.io; font-src 'self' https://*.twimg.com https://js.intercomcdn.com https://fonts.intercomcdn.com; frame-src 'self' https://accounts.google.com/ https://accounts.google.com/gsi/ https://cards-frame.twitter.com https://cdn.plaid.com/ https://client-api.arkoselabs.com/ https://content.googleapis.com/ https://iframe.arkoselabs.com/ https://mobile.twitter.com https://mobile.x.com https://pay.twitter.com https://pay.x.com https://google.com https://www.google.com https://intercom-sheets.com https://www.intercom-reporting.com https://www.youtube.com https://player.vimeo.com https://fast.wistia.net https://console.googletagservices.com https://*.doubleclick.net https://*.adtrafficquality.google https://*.safeframe.googlesyndication.com https://www.googleadservices.com https://googleadservices.com https://adservice.google.com https://*.googlesyndication.com https://td.doubleclick.net https://payments-dev.x.com/ https://payments-staging.x.com/ https://payments-prod.x.com/ https://sdn.payments-dev.x.com/ https://sdn.payments-staging.x.com/ https://sdn.payments-prod.x.com/ https://money-dev.x.com/ https://money-staging.x.com/ https://money.x.com/ https://sdn.money-dev.x.com/ https://sdn.money-staging.x.com/ https://sdn.money.x.com/ https://p2pcreditcardiframesandbox.crbcos.com https://p2pcreditcardiframe.crbcos.com https://verify-sandbox.plaid.com/ https://*.js.stripe.com https://js.stripe.com https://hooks.stripe.com https://twitter.com https://x.com  https://recaptcha.net/recaptcha/; img-src 'self' blob: data: https://www.google.com/maps/place/ https://*.cdn.twitter.com https://*.cdn.x.com https://ton.twitter.com https://ton.x.com https://*.twimg.com https://analytics.twitter.com https://analytics.x.com https://cm.g.doubleclick.net https://www.google-analytics.com https://maps.googleapis.com https://www.periscope.tv https://www.pscp.tv https://ads-twitter.com https://ads-api.twitter.com https://ads-api.x.com https://api.x.com blob: data: https://js.intercomcdn.com https://static.intercomassets.com https://downloads.intercomcdn.com https://downloads.intercomcdn.eu https://downloads.au.intercomcdn.com https://uploads.intercomusercontent.com https://gifs.intercomcdn.com https://video-messages.intercomcdn.com https://messenger-apps.intercom.io https://messenger-apps.eu.intercom.io https://messenger-apps.au.intercom.io https://*.intercom-attachments-1.com https://*.intercom-attachments.eu https://*.au.intercom-attachments.com https://*.intercom-attachments-2.com https://*.intercom-attachments-3.com https://*.intercom-attachments-4.com https://*.intercom-attachments-5.com https://*.intercom-attachments-6.com https://*.intercom-attachments-7.com https://*.intercom-attachments-8.com https://*.intercom-attachments-9.com https://static.intercomassets.eu https://static.au.intercomassets.com https://media.riffsy.com https://*.giphy.com https://media.tenor.com https://c.tenor.com https://*.pscp.tv https://*.periscope.tv https://prod-periscope-profile.s3-us-west-2.amazonaws.com https://platform-lookaside.fbsbx.com https://scontent.xx.fbcdn.net https://scontent-sea1-1.xx.fbcdn.net https://*.googleusercontent.com https://t.co/1/i/adsct https://*.googleusercontent.com https://*.gstatic.com https://*.googlesyndication.com https://*.adtrafficquality.google https://www.google.com/ads/measurement/ https://*.google.com/ads/measurement/ https://googleads.g.doubleclick.net https://google.com https://www.google.com https://plaid-merchant-logos.plaid.com https://plaid-counterparty-logos.plaid.com; manifest-src 'self'; media-src 'self' data: blob: https://twitter.com https://x.com https://*.twimg.com https://*.vine.co https://*.pscp.tv https://*.video.pscp.tv https://js.intercomcdn.com https://downloads.intercomcdn.com https://downloads.intercomcdn.eu https://downloads.au.intercomcdn.com https://dhdsnappytv-vh.akamaihd.net https://pdhdsnappytv-vh.akamaihd.net https://mdhdsnappytv-vh.akamaihd.net https://mdhdsnappytv-vh.akamaihd.net https://mpdhdsnappytv-vh.akamaihd.net https://mmdhdsnappytv-vh.akamaihd.net https://mdhdsnappytv-vh.akamaihd.net https://mpdhdsnappytv-vh.akamaihd.net https://mmdhdsnappytv-vh.akamaihd.net https://dwo3ckksxlb0v.cloudfront.net; object-src 'none'; script-src 'self' 'unsafe-inline' https://maps.googleapis.com https://*.twimg.com https://recaptcha.net/recaptcha/ http://www.gstatic.com/cast/sdk/libs/caf_receiver/v3/cast_receiver_framework.js https://accounts.google.com/gsi/client https://apis.google.com/js/api.js https://appleid.cdn-apple.com/appleauth/static/jsapi/appleid/1/en_US/appleid.auth.js https://client-api.arkoselabs.com/ https://static.ads-twitter.com https://twitter.com https://www.google-analytics.com https://www.gstatic.com/cast/sdk/libs/caf_receiver/v3/cast_receiver_framework.js https://x.com https://sdn.payments-dev.x.com/assets/loader.min.js https://sdn.payments-staging.x.com/assets/loader.min.js https://sdn.payments-prod.x.com/assets/loader.min.js https://sdn.money-dev.x.com/assets/loader.min.js https://sdn.money-staging.x.com/assets/loader.min.js https://sdn.money.x.com/assets/loader.min.js https://sdk.dv.socure.io/latest/device-risk-sdk.js https://cdn.plaid.com/link/v2/stable/link-initialize.js https://payments-dev.x.com/customer/wasm/xxp-forward-with-sdk.js https://payments-staging.x.com/customer/wasm/xxp-forward-with-sdk.js https://payments-prod.x.com/customer/wasm/xxp-forward-with-sdk.js https://money-dev.x.com/customer/wasm/xxp-forward-with-sdk.js https://money-staging.x.com/customer/wasm/xxp-forward-with-sdk.js https://money.x.com/customer/wasm/xxp-forward-with-sdk.js https://js.stripe.com https://*.js.stripe.com https://securepubads.g.doubleclick.net https://www.googletagservices.com https://*.googletagservices.com https://pagead2.googlesyndication.com https://adservice.google.com https://www.googleadservices.com https://ads.google.com https://tpc.googlesyndication.com https://*.tpc.googlesyndication.com https://www.google.com https://googleads.g.doubleclick.net https://app.intercom.io https://widget.intercom.io https://js.intercomcdn.com   'wasm-unsafe-eval'  'nonce-NDQyZTc1ZjQtM2ExZS00ZDQyLThmYzAtMTVmM2I5NzgxOWVk'; style-src 'self' 'unsafe-inline' https://accounts.google.com/gsi/style https://*.twimg.com; worker-src 'self' blob:; report-uri https://x.com/i/csp_report?a=O5RXE%3D%3D%3D&ro=false
strict-transport-security: max-age=631138519
cross-origin-opener-policy: unsafe-none
cross-origin-embedder-policy: unsafe-none
x-response-time: 11
x-connection-hash: fc8892fd44aa6514cd67a67fcf18e25f4bed6c3aea9ae78c776d14621f52a239
vary: accept-encoding
cf-cache-status: DYNAMIC
Server: cloudflare tsa_b
CF-RAY: 93da51e7ee62ebc6-CPH