🌐 cdc.gov 200 🔒 SSL Valid
Checked: (cached 2026-10-18 21:02:04) ↻ Refresh 🔗 Visit site
✨ About this site
The official web portal for the United States Centers for Disease Control and Prevention, providing public health guidance, disease tracking, and medical data. Established in 1946, it serves as the nation's leading health protection agency.
📊 What the data says
This website is approximately 29 years old, having been registered in 1997. It currently responds with an HTTP status of 200 and secures connections using the HSTS header alongside an SSL certificate valid until March 19, 2027.
HTTP Status ?A three-digit code showing if the site loaded successfully (200), redirects (301/302), or has errors (4xx/5xx).Read more →
200
SSL Expires ?When the SSL certificate expires. An expired certificate causes browser security warnings.Read more →
in 151d
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 →
1/3
IP Address ?The numerical address of the server hosting this website. Reveals location, provider, and network.Read more →
23.212.248.11
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.
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No technologies detected

📸 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)23.212.248.723.212.248.11
AAAA (IPv6)2600:1408:c400:4d::1749:cf4f2600:1408:c400:4d::1749:cf4a
NSa5-66.akam.neta9-64.akam.neta2-64.akam.neta1-43.akam.neta8-67.akam.neta28-65.akam.net
MX10 primary.us.etp.fireeyegov.com40 alt3.us.etp.fireeyegov.com20 alt1.us.etp.fireeyegov.com30 alt2.us.etp.fireeyegov.com
TXT (26)
Services configured via TXT:
Atlassian Sending3 Google3 Atlassian2 Adobe Adobe DTM Amazon SES Apple Google Workspace Microsoft 365 OpenAI
+10 other TXT record(s)
Show all TXT records
MS=ms84056562
google-site-verification=nZIK8Rc0sw4MxlgnsYseSBTdcyDXeLFR6P5FIAbgSEM
_ddb344bjip99et71u5cidtx1t53ezdl
atlassian-sending-domain-verification=f2ef9649-6a78-47f6-9990-44a295ae5b5a
google-site-verification=GkbnFA_aF3RXaZOC3deEsrGqs0fmTXyys2hbIn1nVcM
_mhpeli9n9zj3rasw6wfiuch30t2sjlw
identrust_validate=B/Pm/IvNx8tLDDFRsJXBs+oweQGmx08QZ6xK0IvBQn3R
adobe-idp-site-verification=4089552e88740d878b0400d184ab01c0b7391e6dc85796732000450e3476fc93
v=spf1 ip4:51.5.72.0/24 ip4:172.81.81.38 ip4:51.4.72.0/24 ip4:51.5.80.0/27 ip4:51.4.80.0/27 ip4:172.81.81.50 ip4:172.81.82.50 ip4:63.123.152.4 ip4:40.92.0.0/15 ip4:172.81.82.79 ip4:172.81.80.64 ip4:172.81.81.39 ip4:172.81.82.87 ip4:172.81.82.88 ip4:155.95.96.50 ip4:155.95.86.50 ip4:23.90.98.102 ip4:124.17.27.36 ip4:149.72.0.0/16 ip4:198.21.0.0/21 ip4:50.31.32.0/19 ip4:167.89.0.0/17 ip4:68.232.140.57 ip4:68.232.140.79 include:_s0.cdc.gov -all
geneious.com:domain-verification=DP8tae0qCr-FH6KGRvMwWA
google-gws-recovery-domain-verification=42225222
openai-domain-verification=dv-hbgCCuVm9CpZSVXjvFPfivD5
dtm-domain-verification=KQ1rIgUP8GpiV9mSmysS40YKtHjVrI0VF938cuCAWXQ
google-site-verification=qZbBdujV5kZQv_pCqV2wpfSU25odH35HQukm5ACyLNs
268BC041572123F15C5566E5F3D88675FABCC028427B501AE228CA9BB31630D5
apple-domain-verification=VOKePKhT9MhX9zmq
4FF7-1931-E8C2-912B-94CF-BCB0-806A-7442
atlassian-domain-verification=i5oCgfh8OkdKw7Yv2CCKvAdKMW8kYpNVO1A7fcUkBdAy7IzdP/M8D9NoirnaVqZC
atlassian-domain-verification=qjHCJ33pyZHmggxdcFDtGiegrc/iLSyVUIG0LAu1g7XW1JnMdaY8G8pbMUY1Z4hm
_v0e31vq52ru6qgumyh95pylxoe5kmby
atlassian-sending-domain-verification=a39e7003-10de-46b1-8afb-86ef7509f246
atlassian-sending-domain-verification=977cbfcd-c314-42dc-9d86-32e2abca00ac
ZOOM_verify_yEK5MgTwT72nP5URz-eoaA
amazonses:OhxI8Nxovqf1xBmhK5S9kNk7vo9XV4GmGe6LVc+ji80=
_bthbaxy8p6mr5c0o5r7pit3d25lgztb
v4ixju/hXVFXszYswwinkbStpHoDb361lQekI6rkjQ2DV4HHKdN/FJPvMAO88x1rTaRwf29UYwPAq6LqldNWZQ==
📋 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)*.cdc.gov
IssuerDigiCert Inc
Valid From2026-09-02
Valid Until2027-03-19 (151 days left)
SANs (2)*.cdc.govcdc.gov
📡 HTTP Headers ?Metadata sent by the server: reveals software, caching rules, and security configuration.Read more →
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Status200
ServerN/A
Content-Typetext/html
Final URLhttps://www.cdc.gov/
strict-transport-securitymax-age=31536000 ; includeSubDomains ; preload
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 Address23.212.248.11
ProviderUnknown
OrganizationN/A
ASNN/A
LocationN/A
🛡️ Security Score F (2/7)
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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:
🚫 Entire site 1 📁 Other paths 20
Show raw disallow rules (21)
/_borders
/_derived
/_fpclass
/_overlay
/_private
/_themes
/_vti_bin
/_vti_cnf
/_vti_log
/_vti_map
/_vti_pvt
/_vti_txt
/travel/
/flu/espanol/
/migration/
/Features/SpinaBifidaProgram/
/concussion/HeadsUp/training/
/niosh/archive/
/TemplatePackage/examples
/TemplatePackage/gadgets
/
… list truncated
Sitemap Found 916 sitemaps (index) pages
🔗 Social & Meta Tags Missing
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TitleAccess Denied
📧 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 ip4:51.5.72.0/24 ip4:172.81.81.38 ip4:51.4.72.0/24 ip4:51.5.80.0/27 ip4:51.4.80.0/27 ip4:172.81.81.50 ip4:172.81.82.50 ip4:63.123.152.4 ip4:40.92.0.0/15 ip4:172.81.82.79 ip4:172.81.80.64 ip4:172.81.81.39 ip4:172.81.82.87 ip4:172.81.82.88 ip4:155.95.96.50 ip4:155.95.86.50 ip4:23.90.98.102 ip4:124.17.27.36 ip4:149.72.0.0/16 ip4:198.21.0.0/21 ip4:50.31.32.0/19 ip4:167.89.0.0/17 ip4:68.232.140.57 ip4:68.232.140.79 include:_s0.cdc.gov -all
DMARC✓ Present
v=DMARC1; p=reject; fo=1; ri=3600; rua=mailto:[email protected],mailto:[email protected]; ruf=mailto:[email protected];
MX Records
10 → primary.us.etp.fireeyegov.com
40 → alt3.us.etp.fireeyegov.com
20 → alt1.us.etp.fireeyegov.com
30 → alt2.us.etp.fireeyegov.com
🌍 Other TLDs ?Other top-level domain variants of this domain name and their availability. 14 active 8 for sale 2 available
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.com ●
.net taken
.org ●
.info taken
.io ●
.co ●
.dev ●
.app ●
.me taken
.biz taken
.eu taken
.xyz taken
.fi ●
.se ●
.de ●
.uk ●
.fr taken
.nl taken
.es ●
.it ●
.us Available
.ca Available
.com.au ●
.co.uk ●
📡 Uptime Monitor
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Current Status 🟢 Online
HTTP Status 200
Response Time 107ms
Last Checked 2026-10-17 11:15:44.762818
Uptime (30d) 100%
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