🌐 princeton.edu 403 🔒 SSL Valid
Checked: just now 🔗 Visit site
✨ About this site
Princeton University is a leading educational and research institution.
📊 What the data says
This site runs on Drupal with the Hobbes theme, utilizing Cloudflare, Varnish, and Google Analytics. It maintains an active SSL certificate until December 2026 and includes the X-Frame-Options security header.
HTTP Status ?A three-digit code showing if the site loaded successfully (200), redirects (301/302), or has errors (4xx/5xx).Read more →
403
SSL Expires ?When the SSL certificate expires. An expired certificate causes browser security warnings.Read more →
in 53d
Domain Expires ?When the domain registration expires. If not renewed, the domain becomes available to others.Read more →
N/A
Hosting ?The company and location where this website's server is physically located.Read more →
Unknown
Security ?Score based on key HTTP security headers: HSTS, Content-Security-Policy, and X-Frame-Options.Read more →
2/3
IP Address ?The numerical address of the server hosting this website. Reveals location, provider, and network.Read more →
140.180.223.22
Performance ?Lighthouse performance score from Google PageSpeed Insights (0–100). Measures real-world loading speed, interactivity and visual stability.
N/A
Uptime
100%
⚡ Performance ?Lighthouse performance score from Google PageSpeed Insights (0–100). Measures real-world loading speed, interactivity and visual stability.
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Performance data not available yet.

🛠️ Tech Stack ?Technologies detected on this website: CMS, frameworks, libraries, CDN, and analytics tools. 1
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🌐 CDN
Cloudflare
📸 Screenshot Processing...
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⏳

Screenshot is being captured...

🌐 DNS Records ?DNS translates domain names to IP addresses. Records control where the site, email, and services are directed.Read more →
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A (IPv4)140.180.223.22
NSa20-65.akam.neta24-66.akam.netns6.dnsmadeeasy.coma7-65.akam.neta3-67.akam.neta1-158.akam.netns5.dnsmadeeasy.coma6-64.akam.netns7.dnsmadeeasy.com
MX10 princeton-edu.mail.protection.outlook.com
TXT (27)
Services configured via TXT:
Google3 DocuSign2 Adobe Apple Atlassian Dropbox Jamf Microsoft 365 OpenAI Paloaltonetworks
+13 other TXT record(s)
Show all TXT records
docusign=8ee25fec-197b-476d-9659-5a3717059bc0
dropbox-domain-verification=xf71iopc45pc
paloaltonetworks-site-verification=fb3d98b6d82f4593542f655e32a264fe763b0b1ce0a80f5ceccc5c5d0feff519
apple-domain-verification=M2IB2C41pkMXfS91
kwaacu+go+erbui7ikfpg6udfqlprkz9e2pxxeafjplnmhnkyjnfg0uokvami2f8iz7qet4dr+j8ou3/k7lz0a==
google-site-verification=9spyuhtdpgltj4ba6qol87mlltsvqwtwpfpjckhxuaa
F7EB4C8A0066246BC47806F4272AA19A
google-site-verification=G9LehBu6F6NlP7N7c6lb7_dJ59z-b49Hd_AY38O27BA
brevo-code:f80999df7fc32e2373bd2e3f47df53c1
google-site-verification=fxbfrfkt_fmpamiadsiqhygwsrxgcfsmxpkveva7bhk
verifying for Netlify support case #19507
C78F4E9C8396BB82985F96559095BB93
ms=ms98806852
atlassian-domain-verification=uT+jiLnKmr+CvFxx3GGJaEAobMxLzqz6Kl+AO4ha-HGmEtTXuiNTu7uqG1zePfpI
v=spf1 include:%{ir}.%{v}.%{d}.spf.has.pphosted.com ~all
14EB47BE09914AA33EF9D9ED5A9BFEFF
3E9C4486F3765CF5CE2AE23299F5A81E
airtable-verification=f404295b37024f7747d2de8944a93fee
docusign=9b74122b-7e36-4311-9fd4-a1f8200928a9
31700bde-e486-4938-a359-8e497173042b
jamf-site-verification=gOHFT5mfGhE1m6aC3XEdag
github-verification=fRwTRsEqERcBV3GgKMdt4RYrb8CWTfLrN72Z5WdW
R6TEJ9GJ2ECTYPQRT0T76RZIKOG4TQV1Z6TD75P33
adobe-idp-site-verification=73f4a96f-50ca-4b7f-858e-6cef4af902aa
openai-domain-verification=dv-ri2VCR2MpMXhB1YKDbAAsBWA
57dmsH4y22BIE+OMFrnNvGtt3xyyh2Z/XhvRbQfkhMSIMh88zNcjCr/Bj0nOzrEDguiuGBxFOcYuCiw5hfnvDg==
anthropic-domain-verification-ymbamp=9m87xWM7BYZwJSc80lcSy4QpO
📋 WHOIS / RDAP ?Public registration data: who registered the domain, when, and when it expires.Read more →
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RegistrarN/A
RegisteredN/A
ExpiresN/A
Last UpdatedN/A
🔒 SSL Certificate ?Encrypts the connection between browsers and this website. Valid SSL = HTTPS works.Read more → Valid
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Subject (CN)princeton.edu
IssuerInCommon, LLC
Valid From2026-05-28
Valid Until2026-12-12 (53 days left)
SANs (1)princeton.edu
📡 HTTP Headers ?Metadata sent by the server: reveals software, caching rules, and security configuration.Read more →
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Status403
Servercloudflare
Content-Typetext/html; charset=UTF-8
Final URLhttps://www.Princeton.EDU/
content-security-policydefault-src 'none'; script-src 'nonce-cdMtmlnRex8itF32Y7IQ23' 'unsafe-eval' https://challenges.cloudflare.com; script-src-attr 'none'; style-src 'unsafe-inline'; img-src 'self' https://challenges.cloudflare.com; connect-src 'self' https://challenges.cloudflare.com; frame-src 'self' https://challenges.cloudflare.com blob:; child-src 'self' https://challenges.cloudflare.com blob:; worker-src blob:; form-action http: https:; base-uri 'self'
x-frame-optionsSAMEORIGIN
x-content-type-optionsnosniff
referrer-policysame-origin
permissions-policyaccelerometer=(),camera=(),clipboard-read=(),clipboard-write=(),geolocation=(),gyroscope=(),hid=(),magnetometer=(),microphone=(),payment=(),publickey-credentials-get=(),screen-wake-lock=(),serial=(),sync-xhr=(),usb=(),xr-spatial-tracking=*
cf-raya4d3eb063a1316b7-IAD
Security headers ?HTTP headers that protect visitors from attacks. HSTS forces HTTPS, CSP controls resource loading, X-Frame-Options prevents clickjacking.Read more →
HSTS
Content-Security-Policy
X-Frame-Options
🏠 Hosting ?Physical infrastructure: where the server is, who operates it, and what network it belongs to.Read more →
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IP Address140.180.223.22
ProviderUnknown
OrganizationN/A
ASNN/A
LocationN/A
🛡️ Security Score A (6/7)
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Valid SSL
HSTS
CSP
X-Frame-Options
X-Content-Type
Referrer-Policy
Permissions-Policy
🗺️ Sitemap & Robots
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Partially restricted
Some areas are hidden from crawlers, but the main content stays open to search engines.
Areas hidden from crawlers:
🔑 Admin & login 4 ⚙️ CMS internals 2 🔍 Search & filters 2 📁 Other paths 12
Show raw disallow rules (20)
/core/
/profiles/
/README.md
/composer/Metapackage/README.txt
/composer/Plugin/ProjectMessage/README.md
/composer/Plugin/Scaffold/README.md
/composer/Plugin/VendorHardening/README.txt
/composer/Template/README.txt
/modules/README.txt
/sites/README.txt
/themes/README.txt
/web.config
/admin/
/comment/reply/
/filter/tips
/node/add/
/search/
/user/register
/user/password
/user/login
… list truncated
Sitemap Not found
🔗 Social & Meta Tags Missing
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TitleJust a moment...
Languageen-US
📧 Mail Security ?Email authentication records (SPF & DMARC) that prevent spoofing and phishing from this domain.Read more →
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SPF✓ Present
v=spf1 include:%{ir}.%{v}.%{d}.spf.has.pphosted.com ~all
DMARC✓ Present
v=DMARC1; p=reject; fo=1; rua=mailto:[email protected]; ruf=mailto:[email protected]
MX Records
10 → princeton-edu.mail.protection.outlook.com
🌍 Other TLDs ?Other top-level domain variants of this domain name and their availability. 19 active 2 for sale 3 available
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.com ●
.net ●
.org taken
.info ●
.io ●
.co ●
.dev taken
.app Available
.me ●
.biz Available
.eu ●
.xyz ●
.fi Available
.se ●
.de ●
.uk ●
.fr ●
.nl ●
.es ●
.it ●
.us ●
.ca ●
.com.au ●
.co.uk ●
📡 Uptime Monitor
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Current Status 🟢 Client Error
HTTP Status 403
Response Time 109ms
Last Checked 2026-10-17 17:15:22.10514
Uptime (30d) 100%