🌐 sciencemag.org 403 🔒 SSL Valid
Checked: (cached 2026-10-21 21:25:14) ↻ Refresh 🔗 Visit site
✨ AI Description
This website appears to be protected by Cloudflare and may display a “Just a moment…” challenge to verify visitors before granting access. It’s associated with Science/ScienceMag-style content, but the current behavior suggests automated traffic or suspicious requests are being filtered.
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 139d
Domain Expires ?When the domain registration expires. If not renewed, the domain becomes available to others.Read more →
in 1284d
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 →
3/3
IP Address ?The numerical address of the server hosting this website. Reveals location, provider, and network.Read more →
54.151.119.244
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
🔗 Shared Identifiers 36
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Tracking / monetisation identifiers found on this site that also appear on other domains.

ads.txt seller Adform:3251
6 other domains share this identifier
ads.txt seller AppNexus:11801
5 other domains share this identifier
ads.txt seller AppNexus:13099
Shared with 98 other domains
ads.txt seller AppNexus:15127
4 other domains share this identifier
ads.txt seller AppNexus:15629
6 other domains share this identifier
ads.txt seller AppNexus:7911
9 other domains share this identifier
ads.txt seller ContextWeb:558622
7 other domains share this identifier
ads.txt seller ContextWeb:561998
9 other domains share this identifier
ads.txt seller Media.net:8CUB46Z7R
7 other domains share this identifier
ads.txt seller PubMatic:157527
1 other domain shares this identifier
ads.txt seller PubMatic:160648
5 other domains share this identifier
ads.txt seller PubMatic:161332
2 other domains share this identifier
ads.txt seller PubMatic:161593
Shared with 69 other domains
ads.txt seller Rubicon:11006
Shared with 86 other domains
ads.txt seller Rubicon:17070
10 other domains share this identifier
ads.txt seller Rubicon:18364
3 other domains share this identifier
ads.txt seller Rubicon:24364
4 other domains share this identifier
ads.txt seller Smart:3117
8 other domains share this identifier
📸 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)52.8.62.15054.151.119.244
NSns03.aaas.orgns02.aaas.orgns01.aaas.org
TXT (5)
Services configured via TXT:
Google3 Facebook / Meta
+1 other TXT record(s)
Show all TXT records
google-site-verification=G822PgSFgz2vPo3Fu0C9bLXb58t_1knzSqDSspCULwc
google-site-verification=4cTnldeRolO0LyfYFtFwwqJ2zc1THuMUJO7Iuz7lhAw
google-site-verification=W7u_zrZknuKuot7tAWIfvwVkgjrL6gxpRwQIyQZElWM
facebook-domain-verification=wg09i5246crh70b536l2hagkr1x0p9
ca3-15e5411404d7491896a4f30f021f6cdb
📋 WHOIS / RDAP ?Public registration data: who registered the domain, when, and when it expires.Read more →
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RegistrarNetwork Solutions, LLC
Registered1996-04-28
Expires2030-04-29 (in 1284 days)
Last Updated2026-08-12
Statusclient transfer prohibited
🔒 SSL Certificate ?Encrypts the connection between browsers and this website. Valid SSL = HTTPS works.Read more → Valid
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Subject (CN)*.sciencemag.org
IssuerAmazon
Valid From2026-08-26
Valid Until2027-03-11 (139 days left)
SANs (2)*.sciencemag.orgsciencemag.org
📡 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.sciencemag.org/
strict-transport-securitymax-age=31536000
content-security-policydefault-src 'none'; script-src 'nonce-PltZFkybCy9T5RNVmnZML3' '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-raya4e3556e3f78d6f8-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 Address54.151.119.244
ProviderUnknown
OrganizationN/A
ASNN/A
LocationN/A
🛡️ Security Score A (7/7)
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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.
🤖
AI crawlers restricted — Google-Extended, anthropic-ai, GPTBot, ChatGPT-User, CCBot, Applebot-Extended
Areas hidden from crawlers:
🚫 Entire site 1 🔑 Admin & login 1 🔍 Search & filters 2 📁 Other paths 11
Show raw disallow rules (15)
/action
/help
/search
/feedback
/page/account-confirmation-thanks
/media
/medical-research
/servlet/linkout
/na101/
/na101v1/
/na102/
/doi/mlt/
/pb/widgets
/author
/
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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SPFNot set
DMARCNot set
🌍 Other TLDs ?Other top-level domain variants of this domain name and their availability. 4 active 2 for sale 17 available
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.com ●
.net ●
.org current
.info Available
.io Available
.co Available
.dev Available
.app Available
.me Available
.biz Available
.eu Available
.xyz Available
.fi Available
.se Available
.de ●
.uk Available
.fr taken
.nl Available
.es Available
.it ●
.us taken
.ca Available
.com.au Available
.co.uk Available
📡 Uptime Monitor
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Current Status 🟢 Client Error
HTTP Status 403
Response Time 317ms
Last Checked 2026-10-21 21:30:22.696285
Uptime (30d) 100%