Domain diagnostics youtube.com

Diagnose potential issues with a given domain.

You can bookmark this tool as diag.domains .

Global name servers

Google Public DNS

ns1.google.com (932992649, TTL: 60)

Cloudflare DNS

ns1.google.com (932992649, TTL: 17)

Quad9

ns1.google.com (932992649, TTL: 60)

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

Web servers

youtube.com
Host Goal Reverse
youtube.com 142.251.143.142 trn05s04-in-f14.1e100.net
youtube.com AAAA IPv6 2a00:1450:400f:802:0:0:0:200e arn09s23-in-x0e.1e100.net
www.youtube.com
Host Goal Reverse
www.youtube.com CNAME youtube-ui.l.google.com -
youtube-ui.l.google.com 142.251.143.142 lcarnb-ai-in-f14.1e100.net
youtube-ui.l.google.com 172.217.19.238 par21s11-in-f14.1e100.net
youtube-ui.l.google.com 216.58.201.238 fra02s18-in-f14.1e100.net
youtube-ui.l.google.com 142.251.142.238 lcarnb-ah-in-f14.1e100.net
youtube-ui.l.google.com 216.58.207.110 lcarna-ag-in-f14.1e100.net
youtube-ui.l.google.com 172.217.20.174 waw02s07-in-f14.1e100.net
youtube-ui.l.google.com 216.58.201.206 mrs08s06-in-f14.1e100.net
youtube-ui.l.google.com 216.58.201.174 arn02s06-in-f174.1e100.net
youtube-ui.l.google.com 142.251.38.110 lcarna-ac-in-f14.1e100.net
www.youtube.com CNAME youtube-ui.l.google.com -
youtube-ui.l.google.com AAAA IPv6 2a00:1450:400f:802:0:0:0:200e lcarnb-ai-in-x0e.1e100.net
youtube-ui.l.google.com AAAA IPv6 2a00:1450:400f:806:0:0:0:200e arn11s01-in-x0e.1e100.net
youtube-ui.l.google.com AAAA IPv6 2a00:1450:400f:805:0:0:0:200e arn11s12-in-x0e.1e100.net
youtube-ui.l.google.com AAAA IPv6 2a00:1450:400f:80f:0:0:0:200e lcarnb-aj-in-x0e.1e100.net

Incoming mail

Host # Goal IP Reverse
youtube.com 0 smtp.google.com 142.251.9.27 rc-in-f27.1e100.net

Outgoing mail

SPF record

Value
v=spf1 include:google.com mx -all
No Simply.com SPF record found

DKIM records

Simply.com DKIM records not found

DMARC record

Name Value
_dmarc.youtube.com v=DMARC1; p=reject; rua=mailto:mailauth-reports@google.com

TXT records

Name Value
youtube.com facebook-domain-verification=64jdes7le4h7e7lfpi22rijygx58j1
youtube.com google-site-verification=QtQWEwHWM8tHiJ4s-jJWzEQrD_fF3luPnpzNDH-Nw-w
youtube.com SPF v=spf1 include:google.com mx -all

CAA records

Name Tag Value Flags
youtube.com issue pki.goog 0

Nameservers

Host Nameserver
youtube.com ns3.google.com
youtube.com ns1.google.com
youtube.com ns4.google.com
youtube.com ns2.google.com

WHOIS

Domain Name: youtube.com
Registry Domain ID: 142504053_DOMAIN_COM-VRSN
Registrar WHOIS Server: whois.markmonitor.com
Registrar URL: http://www.markmonitor.com
Updated Date: 2026-01-14T10:29:14+0000
Creation Date: 2005-02-15T05:13:12+0000
Registrar Registration Expiration Date: 2027-02-15T00:00:00+0000
Registrar: MarkMonitor, Inc.
Registrar IANA ID: 292
Registrar Abuse Contact: https://corp.markmonitor.com/domain/ui/abuse-report
Registrar Abuse Contact Phone: +1.2086851750
Domain Status: clientUpdateProhibited (https://www.icann.org/epp#clientUpdateProhibited)
Domain Status: clientTransferProhibited (https://www.icann.org/epp#clientTransferProhibited)
Domain Status: clientDeleteProhibited (https://www.icann.org/epp#clientDeleteProhibited)
Domain Status: serverUpdateProhibited (https://www.icann.org/epp#serverUpdateProhibited)
Domain Status: serverTransferProhibited (https://www.icann.org/epp#serverTransferProhibited)
Domain Status: serverDeleteProhibited (https://www.icann.org/epp#serverDeleteProhibited)
Registrant Organization: Google LLC
Registrant Country: US
Registrant Email: Select Request Email Form at https://domains.markmonitor.com/whois/youtube.com
Tech Email: Select Request Email Form at https://domains.markmonitor.com/whois/youtube.com
Name Server: ns2.google.com
Name Server: ns3.google.com
Name Server: ns4.google.com
Name Server: ns1.google.com
DNSSEC: unsigned
URL of the ICANN WHOIS Data Problem Reporting System: http://wdprs.internic.net/
>>> Last update of WHOIS database: 2026-06-17T08:27:55+0000 <<<

For more information on WHOIS status codes, please visit:
  https://www.icann.org/resources/pages/epp-status-codes

If you wish to contact this domain’s Registrant or Technical
contact, and such email address is not visible above, you may do so via our web
form, pursuant to ICANN’s Temporary Specification. To verify that you are not a
robot, please enter your email address to receive a link to a page that
facilitates email communication with the relevant contact(s).

Web-based WHOIS:
  https://domains.markmonitor.com/whois/contact/youtube.com

If you have a legitimate interest in viewing the non-public WHOIS details, send
your request and the reasons for your request to whoisrequest -@- markmonitor.com
and specify the domain name in the subject line. We will review that request and
may ask for supporting documentation and explanation.

The data in MarkMonitor’s WHOIS database is provided for information purposes,
and to assist persons in obtaining information about or related to a domain
name’s registration record. While MarkMonitor believes the data to be accurate,
the data is provided "as is" with no guarantee or warranties regarding its
accuracy.

By submitting a WHOIS query, you agree that you will use this data only for
lawful purposes and that, under no circumstances will you use this data to:
  (1) allow, enable, or otherwise support the transmission by email, telephone,
or facsimile of mass, unsolicited, commercial advertising, or spam; or
  (2) enable high volume, automated, or electronic processes that send queries,
data, or email to MarkMonitor (or its systems) or the domain name contacts (or
its systems).

MarkMonitor reserves the right to modify these terms at any time.

By submitting this query, you agree to abide by this policy.

MarkMonitor Domain Management(TM)
Protecting companies and consumers in a digital world.

Visit MarkMonitor at https://www.markmonitor.com
Contact us at +1.8007459229
In Europe, at +44.02032062220
--

WHOIS result is cached for 15 minutes

RDAP

Domain
YOUTUBE.COM
Handle
142504053_DOMAIN_COM-VRSN
Status
client delete prohibitedclient transfer prohibitedclient update prohibitedserver delete prohibitedserver transfer prohibitedserver update prohibited
Registration
February 15, 2005 5:13 AM
Expiration
February 15, 2027 5:13 AM
Last changed
January 14, 2026 10:29 AM
Last update of rdap database
June 17, 2026 8:28 AM
Nameservers
  • NS1.GOOGLE.COM
  • NS2.GOOGLE.COM
  • NS3.GOOGLE.COM
  • NS4.GOOGLE.COM
DNSSEC
Not signed
Registrar
MarkMonitor Inc.

RDAP result is cached for 15 minutes

HTTP trace

1
http://youtube.com
HTTP 301
172.217.20.174
Namelookup
1 ms
Connect
13 ms
Pre-transfer
13 ms
Start-transfer (TTFB)
40 ms
HTTP/2 301 Moved Permanently
content-type: application/binary
x-content-type-options: nosniff
cache-control: no-cache, no-store, max-age=0, must-revalidate
pragma: no-cache
expires: Mon, 01 Jan 1990 00:00:00 GMT
date: Wed, 17 Jun 2026 08:34:21 GMT
location: https://youtube.com/
server: ESF
content-length: 0
x-xss-protection: 0
x-frame-options: SAMEORIGIN
2
https://youtube.com/
HTTP 301
142.251.142.238
Namelookup
21 ms
Connect
32 ms
Pre-transfer
58 ms
Start-transfer (TTFB)
91 ms
HTTP/3 301 Moved Permanently
content-type: application/binary
x-content-type-options: nosniff
expires: Wed, 17 Jun 2026 08:34:21 GMT
date: Wed, 17 Jun 2026 08:34:21 GMT
cache-control: private, max-age=31536000
location: https://www.youtube.com/
p3p: CP="This is not a P3P policy! See g.co/p3phelp for more info."
strict-transport-security: max-age=31536000; includeSubDomains; preload
x-frame-options: SAMEORIGIN
report-to: {"group":"youtube_main","max_age":2592000,"endpoints":[{"url":"https://csp.withgoogle.com/csp/report-to/youtube_main"}]}
origin-trial: AmhMBR6zCLzDDxpW+HfpP67BqwIknWnyMOXOQGfzYswFmJe+fgaI6XZgAzcxOrzNtP7hEDsOo1jdjFnVr2IdxQ4AAAB4eyJvcmlnaW4iOiJodHRwczovL3lvdXR1YmUuY29tOjQ0MyIsImZlYXR1cmUiOiJXZWJWaWV3WFJlcXVlc3RlZFdpdGhEZXByZWNhdGlvbiIsImV4cGlyeSI6MTc1ODA2NzE5OSwiaXNTdWJkb21haW4iOnRydWV9, AiDEBptUfVeO93q48VdVMe/ubupazdAl8AaHP+NBzdnW8quUcHdzJUyGSfrmtpKJu7EOvwRp9ug2rEo3XU+WMAMAAAB2eyJvcmlnaW4iOiJodHRwczovL3lvdXR1YmUuY29tOjQ0MyIsImZlYXR1cmUiOiJEZXZpY2VCb3VuZFNlc3Npb25DcmVkZW50aWFsczIiLCJleHBpcnkiOjE3NzQzMTA0MDAsImlzU3ViZG9tYWluIjp0cnVlfQ==
cross-origin-opener-policy: same-origin-allow-popups; report-to="youtube_main"
permissions-policy: ch-ua-arch=*, ch-ua-bitness=*, ch-ua-full-version=*, ch-ua-full-version-list=*, ch-ua-model=*, ch-ua-wow64=*, ch-ua-form-factors=*, ch-ua-platform=*, ch-ua-platform-version=*
content-security-policy: base-uri 'self';object-src 'none';script-src 'report-sample' 'nonce-rIh-LvdFUNhundn6azs4Cg' 'unsafe-inline' 'strict-dynamic' https: http: 'unsafe-eval';report-uri https://csp.withgoogle.com/csp/youtube_main/strict, require-trusted-types-for 'script'
accept-ch: Sec-CH-Viewport-Width, Sec-CH-DPR, Device-Memory
vary: Sec-CH-Viewport-Width, Sec-CH-DPR, Device-Memory
server: ESF
content-length: 0
x-xss-protection: 0
set-cookie: __Secure-YENID=16.YTE=eHGFALMhHBsLcmeHZI6-r_ILeL3qI56bC_rGKRD1dZHqMUBiUBzGvjKTl_SLBipBtE0c6K3YR6Qr1nAedIQpMTuLaWWy3OfJMtRONzCVp544n0boM6R9yFT_0W7VsrP4HMkopXZ-zHW4LIr1avluyDH7gcI1QH_xsg2f2zKColUQS3XBU9NLJxpgQLaDxXrP0ByzzTICwLoo4D-aFKONxcDpNUgEAvLFAh0o38T60f0s9en5uue1R9-vrHq1gOahY007oQ9_YHsYvIeC83N9gc2cNb1Qk0cMXxX_HuJ7QX4YUg3U4SLyddUJ6GZjHRTen0jLfzwYIiJTCo_83DqFIw; expires=Sat, 17-Jul-2027 08:34:21 GMT; path=/; domain=.youtube.com; Secure; HttpOnly; SameSite=lax
alt-svc: h3=":443"; ma=2592000,h3-29=":443"; ma=2592000
3
https://www.youtube.com/
HTTP 200
216.58.207.110
Namelookup
1 ms
Connect
13 ms
Pre-transfer
37 ms
Start-transfer (TTFB)
102 ms
HTTP/3 200 OK
content-type: text/html; charset=utf-8
x-content-type-options: nosniff
cache-control: no-cache, no-store, max-age=0, must-revalidate
pragma: no-cache
expires: Mon, 01 Jan 1990 00:00:00 GMT
date: Wed, 17 Jun 2026 08:34:21 GMT
p3p: CP="This is not a P3P policy! See http://support.google.com/accounts/answer/151657?hl=da for more info."
x-frame-options: SAMEORIGIN
strict-transport-security: max-age=31536000
origin-trial: AmhMBR6zCLzDDxpW+HfpP67BqwIknWnyMOXOQGfzYswFmJe+fgaI6XZgAzcxOrzNtP7hEDsOo1jdjFnVr2IdxQ4AAAB4eyJvcmlnaW4iOiJodHRwczovL3lvdXR1YmUuY29tOjQ0MyIsImZlYXR1cmUiOiJXZWJWaWV3WFJlcXVlc3RlZFdpdGhEZXByZWNhdGlvbiIsImV4cGlyeSI6MTc1ODA2NzE5OSwiaXNTdWJkb21haW4iOnRydWV9, AiDEBptUfVeO93q48VdVMe/ubupazdAl8AaHP+NBzdnW8quUcHdzJUyGSfrmtpKJu7EOvwRp9ug2rEo3XU+WMAMAAAB2eyJvcmlnaW4iOiJodHRwczovL3lvdXR1YmUuY29tOjQ0MyIsImZlYXR1cmUiOiJEZXZpY2VCb3VuZFNlc3Npb25DcmVkZW50aWFsczIiLCJleHBpcnkiOjE3NzQzMTA0MDAsImlzU3ViZG9tYWluIjp0cnVlfQ==
cross-origin-opener-policy: same-origin-allow-popups; report-to="youtube_main"
content-security-policy: require-trusted-types-for 'script', base-uri 'self';object-src 'none';script-src 'report-sample' 'nonce-kCVcoBoi3CFibeP9lclh-w' 'unsafe-inline' 'strict-dynamic' https: http: 'unsafe-eval';report-uri https://csp.withgoogle.com/csp/youtube_main/strict
accept-ch: Sec-CH-Viewport-Width, Sec-CH-DPR, Device-Memory
vary: Sec-CH-Viewport-Width, Sec-CH-DPR, Device-Memory
report-to: {"group":"youtube_main","max_age":2592000,"endpoints":[{"url":"https://csp.withgoogle.com/csp/report-to/youtube_main"}]}
permissions-policy: ch-ua-arch=*, ch-ua-bitness=*, ch-ua-full-version=*, ch-ua-full-version-list=*, ch-ua-model=*, ch-ua-wow64=*, ch-ua-form-factors=*, ch-ua-platform=*, ch-ua-platform-version=*
reporting-endpoints: crash-reporting="/web-reports?context=eJwNzHtIlXccx_Ee3yTmsXPOc57L7_vDUaMFEXXMIyitrQt2oQQvEEHNmqmdIrJjyfGkZCFdBm0lBUWzbc0i6lR0aEXRBcsFIcUpyYgium0ZUZOiC2XT2J4_Xrzh88cnOzl87NyYsXhcg7F9Ttz4cDhunLgYN_q_TBiVYxJG3eMmY39wYUbz62wqJ_i4XeKjv8zH2SM-Lp7y8fC5j8LGHDrbR5I876ei288uz6vPfoqmBkhEA_gSAfZtCxDZG0BdD9A5NkjvL0EefAzSVmjy6wKTh1UmpStMWlpMtniK20wuHzPJTZl88cLk7wGT_0pClFaG-KbXa67F8dEW4UKL5TMsBsotsustnrV6-2GLOfcsdr-1GBq0-Mm2qVA2NXGbje02qQ6b_m6bWNpm9X2b34Y5zHIdvhKHnlyH5tEOxfMdypocjv7g8MePDsYehxs3HDL-crhgugxOcqmOuDhTXLLKXA54dta6pOtckptcUkmX3d0u05-6tL9weZ-hyMlU-D1d4xXpPMXpYsWZuYrUPMWwEsWnJkXBLsXWS4qsy4rYn4pHVxTxu4opjxVLniiK-7y-VPS-VXx-p9gxoDD-Vfwz6H0MF2ZmC7MDwkFTqBDhZkTQ3wrNpcKG-ULHQmHGIqHLk14qfB8VrHqhb72Q2CYs3S-sPST0JoXXnpyjgt-TPimErnqfN4Wrno4e4dUtYeiO0HZX-P2e4D4SUv0Cb4RRn4T1Q8J1z0w0XZmarVmaBSM05QFNq6cnpDk1QTN9mub5LI3-TtNdrZm8SrN5reZlQjNxneZ4i2baz5pQTtaOc9duZQZbO_suMSbcXN8Yb6yJ5q2L1oSXN9TH4uFobFm4tmFlfGVtdV1VQX5BUX5RpDAv_-uqNZH_AVDX070"
document-policy: include-js-call-stacks-in-crash-reports
content-encoding: gzip
server: ESF
x-xss-protection: 0
set-cookie: __Secure-YENID=16.YTE=Jjb1XdD1Nm2pbVahlKBwLXbxk3QM8Xl576HFdelfFsFuimxRA2C0p-1_vUKiG7cIRz2ioJnp9FgR_OYIWZMk9V3fYJEMPebIaBtI0j6AhVYm21t8SQ61rtsrNCPTSUls_RGy2QhHSa63yxcCUhpleBgnOpufmYv1he7AS3In_gNijYSLm-Ywp4Fj8Hyz4HuMxNGRpKhYqsPqMr8lz2JIy7H4C6QEEjSvGZuCgYhRjWOXuzX7KCE-0dIzsI9Q8JL0nfiheYwWZaLwri2iL5BcAQwyyz9mueXL8FloaKq3PNucvxwnkVdyNCje3H9hPphmQ29A3hPdtOYObDI9IbrDvA; expires=Sat, 17-Jul-2027 08:34:21 GMT; path=/; domain=.youtube.com; Secure; HttpOnly; SameSite=lax, YSC=6NFHJqL8FIU; Domain=.youtube.com; Path=/; Secure; HttpOnly; SameSite=none, __Secure-YEC=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%3D; Domain=.youtube.com; Expires=Sat, 17-Jul-2027 08:34:20 GMT; Path=/; Secure; HttpOnly; SameSite=lax, VISITOR_PRIVACY_METADATA=CgJESxIiEh4SHAsMDg8QERITFBUWFxgZGhscHR4fICEiIyQlJicgOw%3D%3D; Domain=.youtube.com; Expires=Sat, 17-Jul-2027 08:34:21 GMT; Path=/; Secure; HttpOnly; SameSite=none, VISITOR_INFO1_LIVE=; Domain=.youtube.com; Expires=Thu, 21-Sep-2023 08:34:21 GMT; Path=/; Secure; HttpOnly; SameSite=none
alt-svc: h3=":443"; ma=2592000,h3-29=":443"; ma=2592000
3
Requests
2
Redirects
233 ms
Total time
200
Final status