nih.gov 403 🔒 SSL Valid
Checked: just now 🔗 Visit site
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 179d
Domain Expires ?When the domain registration expires. If not renewed, the domain becomes available to others.Read more →
in 367d
Hosting ?The company and location where this website's server is physically located.Read more →
National Institutes of Health
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 →
156.40.212.210
🛠️ Tech Stack ?Technologies detected on this website: CMS, frameworks, libraries, CDN, and analytics tools. 1
▼
🌐 CDN
Cloudflare
📸 Screenshot 2026-08-20
▼
Screenshot of nih.gov
Captured: 2026-08-20 03:03:44 · 8.7 KB
🌐 DNS Records ?DNS translates domain names to IP addresses. Records control where the site, email, and services are directed.Read more →
▼
A (IPv4)156.40.212.210
NSns2.nih.govns.nih.govns3.nih.gov
MX10 nihcesxwayst04.hub.nih.gov10 nihcesxwayst03.hub.nih.gov10 nihcesxway6.hub.nih.gov10 nihcesxway5.hub.nih.gov10 nihcesxway4.hub.nih.gov10 nihcesxway3.hub.nih.gov10 nihcesxwayst06.hub.nih.gov10 nihcesxwayst05.hub.nih.gov
TXT
_jiomcldogudftjarbrdx4kt57mzu5xv
atlassian-domain-verification=5I70E3MqAbQ9rCDoKlyjMB5STNFM2xRdvGSKSghuwgN4belFRwLsmIACp85aACc/
dv-ToPuPeiy2ojjpiSg4wlEEaJe
uub8i3goc70aj1kvl0neuhle5v
webexdomainverification.4C675B8AF44FB136E053AB06FC0A3F65=b1985124-e9bf-4009-a584-7dee024dc7e9
x1htw52vr2t3416zs29gg8lq0zkw744c
v=spf1 ip4:128.231.90.64/26 ip4:165.112.13.0/26 ip4:156.40.79.128/25 ip4:128.231.89.192/28 ip4:165.112.69.16/28 ip4:165.112.194.0/25 ip6:2607:f220:0404:8104::0/64 ip6:2607:f220:402:1a01::0/64 ip6:2607:f220:404:12e::/64 ip6:2607:f220:402:12e::/64 include:spf.protection.outlook.com ~all
apple-domain-verification=G25suhrGTYqwbLNS
cisco-ci-domain-verification=25e2351f5ed93561cf171fbead7759b2407183ca513c2c4d7eb88be637a59b7f
sv6eiguevqe64cojov3psnedd2
wOUurBjukuuVfNP30Zyjv13ohvbjr9KVCgIoMfKSL6U=
amazonses:6dUQp3PJw2/pPriaGheRkNX6rVRchTDJCVkzGLDtftA=
graphpad.com:domain-verification=gN34VRAg6P9tjzcJQp3UzA
SDRQ4Pu3aj2Qhnqm0Pu+NCsKPrfBbW56qXduqE9GxA/f5eo+/Ui6umgbTg9PW0hjeg21Q2yCpOALWHqZ91OwZQ==
apple-domain-verification=rFyOPvcO8sUX2iHP
amazonses:Ckm+FeqyUMSBHOvsBsDHWeb1nuGAr6AWg5crTuJh47k=
amazonses:F99Cv1zG5C8JOyxlwPmjFx3qCOyQ7xJdwsNMHiJbEew=
webexdomainverification.2494X=72426cc0-664d-4a80-a6f4-113b7f648c9d
_0i392yrtc0z5vy7dpsmgeoukvw7bysw
webexdomainverification.4C675B8AEB46B136E053AB06FC0A3F65=a9568d05-1a3d-4c2b-9f45-3b5d786db694
amazonses:EpIukSNkqrJBid632tohg9ghfR9ZOm2BsQKY8fKESvs=
jamf-site-verification=g8V3otVBbtqnjBIjIJXrFg
pknf061r79fsrzbmcpgnhygf1j8nvxy8
_ai4lciv17rnka4jdu9z7ft5dkdn6cwi
amazonses:93j7xtRaIBE5K+ERCErN+WDNFhQPQ1rY8mCD3Ut5Rqg=
amazonses:rhL1YpdU4RL+Q7IALiZNww69f5cR1IZDcqEh9fRy6Tg=
mongodb-site-verification=P4xvHdvjB9koHJnGWdIuapplaUGKo9VP
docusign=850d3223-bb46-4946-986b-2410b69ed0e7
webexdomainverification.4C675B8A8FC5B136E053AB06FC0A3F65=81f2d6dc-b5b1-4624-9e3f-278cb4163770
rh426i3oiis217bktj8o4nd2m2
v7959lz5pgb250x8gzt0fkg7j4x1s6bw
openai-domain-verification=dv-ToPuPeiy2ojjpiSg4wlEEaJe
1qM+TU0yI2yC5SbKT6I96/NjwTb/86hET84vn0/fXWW=
amazonses:Oq2yjJ17I+Cqlgpxl9Pto0uQ7gwb0IpbhQFCHjPwuGo=
docusign=5a06ea48-7158-4d7c-a47f-624b9d0cebc9
amazonses:vDxikFPIS0Am8dY/BlMuOFbJ2TuF64fRwUfkUGH67bY=
da1dfl8ipaafpqsh40iiuubf7n
adobe-sign-verification=1e4a7a1987a2efa2d94b3cdcf717ec0b5d1dcbcb8c16a5d2bc4ea7c4dbcd2210
ciscocidomainverification=1b32b084b0eb3ade21d6a521cfa1db73d2a787817950f96cf35fe67d6fa84685
apple-domain-verification=2IrLd0KYEerfwrx6
google-site-verification=bFFD3VwenH37-hj5wbQqLUOAkLjsrX2Tp-LnN1AvpkQ
pbj2k0thl8k6bc1b5igtqqghls
webexdomainverification.4C675B897222B136E053AB06FC0A3F65=cf14e0ca-cfec-4d2b-83ab-5971ee749040
atlassian-domain-verification=VhnxT3ISJLKFyasfowo1iyVXcEqztbz/3PWOQM6LP0kG9HrAlq/21h27cbqTwdxw
_acquiaplatform.nih.gov:YlLYOocbRZcMeei5s0g/6cFJWMNb3AljE+bns/TE/e4=
adobe-idp-site-verification=5e85ea0ed34d3d2a09f830d0cfc77139471d15e20e771d90484e89895b0a9f1e
google-site-verification=zVNJw3i2goXwxAOFiO6ubfIWhKkgRnHS82Q7F6M6Gck
amazonses:QJZljHq4QVLochyWJlHRtF/TQ7CgNwoHHWnOK7AjCWo=
apple-domain-verification=8VumNb91MILOLiQZ
amazonses:QLi7vDgXZTFrD/2qNMkfcQtCzsetuefpN50b98lKPA0=
apple-domain-verification=c8bb3gA2SNfmH0Zx
atlassian-domain-verification=FfyaIO5BcqxasUU4Cuwp9/4Y3ujXrMEpfhyaPydm5lM6vqDALuZFv8QqJI6qUPVp
google-site-verification=8BC5Gnatu9NBfOph_lZpZyG2eDK0iPs0V8Li0RKzin8
amazonses:njYRGZSzGLGsQ66bZMwxwZZF4zHx9G8JWosbZeNa7Eo=
docker-verification=6c54ab12-d26d-44b7-978e-f60aa83a02f3
f71j9q2oprakr7gtedlcau485k
atlassian-domain-verification=wdcwOCoxzIePKKuoOG918QCLMqYKy85i2g2UFoGlTcp32Eifql11S8xMtj1bxytf
0d03wt1mlg5wy8z9pv9pv0rj21pc6137
identrust_validate=n7BmXlMZM4qNvYOHyZEwIZ1EN76JW0zd+C6l4Q39y2Vw
amazonses:Socb9IMK/O81TXqIP15y3NAyd8tyEcV6waygbWSPBi0=
amazonses:sFnUJ7LhEsJBsbZON/tFEgtZeGaqZiwY6vCL/+AJXak=
apple-domain-verification=FTZHYv0nuXKqjeP8
miro-verification=ce1878a9901e3785a9ee9302aaaf4b8f878ff042
mongodb-site-verification=gnP2xDWxNwIi8HvCaZxCA9DYeIIsM908
YlLYOocbRZcMeei5s0g/6cFJWMNb3AljE+bns/TE/e4=
📋 WHOIS / RDAP ?Public registration data: who registered the domain, when, and when it expires.Read more →
▼
Registrarget.gov
Registered1997-10-02
Expires2027-08-22 (in 367 days)
Last Updated2026-08-14
Statusserver transfer prohibited
🔒 SSL Certificate ?Encrypts the connection between browsers and this website. Valid SSL = HTTPS works.Read more → Valid
▼
Subject (CN)www.nih.gov
IssuerGoDaddy.com, Inc.
Valid From2026-02-05
Valid Until2027-02-15 (179 days left)
SANs (28)salud.nih.govdevtestdomain.nih.govstagetestdomain.nih.govstagetestdomain6.nih.govstagetestdomain5.nih.govtestdomain2.nih.govstagetestdomain2.nih.govstagetestdomain7.nih.govwww.nih.comdevtestdomain7.nih.govclinicalresearchtrials.nih.govwww.nih.govnih.govstagetestdomain4.nih.govdevtestdomain4.nih.govnewsinhealth.nih.govdevtestdomain6.nih.govtestdomain.nih.govstagetestdomain3.nih.govwww.health.nih.gov +8 more
📡 HTTP Headers ?Metadata sent by the server: reveals software, caching rules, and security configuration.Read more →
▼
Status403
Servercloudflare
Content-Typetext/html; charset=UTF-8
Final URLhttps://www.nih.gov/
strict-transport-securitymax-age=31536000; includeSubDomains; preload
x-frame-optionsSAMEORIGIN
x-content-type-optionsnosniff
referrer-policysame-origin
cache-controlprivate, max-age=0, no-store, no-cache, must-revalidate, post-check=0, pre-check=0
cf-raya2df306b8e056a58-EWR
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 →
▼
IP Address156.40.212.210
ProviderNational Institutes of Health
OrganizationNational Institutes of Health
ASNAS3527
CountryUS
CityFrederick
🛡️ Security Score B (5/7)
▼
Valid SSL
HSTS
CSP
X-Frame-Options
X-Content-Type
Referrer-Policy
Permissions-Policy
🗺️ Sitemap & Robots
▼
robots.txt Not found
Sitemap Not found
🔗 Social & Meta Tags Missing
▼
TitleAttention Required! | Cloudflare
Languageen-US
📧 Mail Security ?Email authentication records (SPF & DMARC) that prevent spoofing and phishing from this domain.Read more →
▼
SPF✓ Present
v=spf1 ip4:128.231.90.64/26 ip4:165.112.13.0/26 ip4:156.40.79.128/25 ip4:128.231.89.192/28 ip4:165.112.69.16/28 ip4:165.112.194.0/25 ip6:2607:f220:0404:8104::0/64 ip6:2607:f220:402:1a01::0/64 ip6:2607:f220:404:12e::/64 ip6:2607:f220:402:12e::/64 include:spf.protection.outlook.com ~all
DMARC✓ Present
v=DMARC1; p=reject; rua=mailto:[email protected],mailto:[email protected]; ruf=mailto:[email protected]; fo=1;
MX Records
10 → nihcesxwayst04.hub.nih.gov
10 → nihcesxwayst03.hub.nih.gov
10 → nihcesxway6.hub.nih.gov
10 → nihcesxway5.hub.nih.gov
10 → nihcesxway4.hub.nih.gov
10 → nihcesxway3.hub.nih.gov
10 → nihcesxwayst06.hub.nih.gov
10 → nihcesxwayst05.hub.nih.gov