🌐
booking.co.uk 202
🔒 SSL Valid
HTTP Status A three-digit code showing if the site loaded successfully (200), redirects (301/302), or has errors (4xx/5xx).Read more →
202
SSL Expires When the SSL certificate expires. An expired certificate causes browser security warnings.Read more →
in 186d
Domain Expires When the domain registration expires. If not renewed, the domain becomes available to others.Read more →
in 209d
Hosting The company and location where this website's server is physically located.Read more →
AWS
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 →
76.223.81.77
Performance Lighthouse performance score from Google PageSpeed Insights (0–100). Measures real-world loading speed, interactivity and visual stability.
33
mob
Uptime
100%
Performance Lighthouse performance score from Google PageSpeed Insights (0–100). Measures real-world loading speed, interactivity and visual stability. 33
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Mobile
Score
Accessibility
Best Practices
SEO
LCP
5.70s
CLS
0.000
FCP
3.68s
TTFB
0.01s
TBT
7,763ms
SI
11.13s
Checked: 2026-09-04 13:46:01.811247 · View on PageSpeed
Tech Stack Technologies detected on this website: CMS, frameworks, libraries, CDN, and analytics tools.
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No technologies detected
Screenshot
2026-09-02
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Captured: 2026-09-02 11:29:50 · 5.1 KB
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) | 76.223.81.77 |
| NS | ns-1288.awsdns-33.orgns-1959.awsdns-52.co.ukns-508.awsdns-63.comns-716.awsdns-25.net |
| TXT (1) |
v=spf1 -all |
WHOIS / RDAP Public registration data: who registered the domain, when, and when it expires.Read more →
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| Registrar | Markmonitor Inc. |
| Registered | 1997-05-15 |
| Expires | 2027-05-15 (in 209 days) |
| Last Updated | 2025-04-13 |
| Status | active |
SSL Certificate Encrypts the connection between browsers and this website. Valid SSL = HTTPS works.Read more → Valid
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| Subject (CN) | *.booking.com |
| Issuer | DigiCert Inc |
| Valid From | 2026-10-06 |
| Valid Until | 2027-04-22 (186 days left) |
| SANs (2) | *.booking.combooking.com |
HTTP Headers Metadata sent by the server: reveals software, caching rules, and security configuration.Read more →
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| Status | 202 |
| Server | istio-envoy |
| Content-Type | text/html |
| Final URL | https://www.booking.com/ |
| strict-transport-security | max-age=63072000; includeSubDomains; preload |
| x-cache | Miss from cloudfront |
| via | 1.1 64d4305f6a0418824e90908ac490184e.cloudfront.net (CloudFront) |
Security headers HTTP headers that protect visitors from attacks. HSTS forces HTTPS, CSP controls resource loading, X-Frame-Options prevents clickjacking.Read more →
Hosting Physical infrastructure: where the server is, who operates it, and what network it belongs to.Read more →
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| IP Address | 76.223.81.77 |
| Provider | AWS |
| Organization | Amazon.com, Inc. |
| ASN | AS16509 |
| Location | Seattle, Washington, US |
| Coordinates | 47.5413, -122.3129 |
Security Score
F (2/7)
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Sitemap & Robots
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No robots.txt
This site has no robots.txt file, so crawlers may access everything by default.
| Sitemap | Not found |
Social & Meta Tags
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No meta tags detected.
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 -all |
| DMARC | ✓ Present v=DMARC1; p=reject; rua=mailto:[email protected],mailto:[email protected]; ruf=mailto:[email protected] |
Other TLDs Other top-level domain variants of this domain name and their availability. 21 active 2 available
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Uptime Monitor
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| Current Status | 🟢 Online |
| HTTP Status | 202 |
| Response Time | 1008ms |
| Last Checked | 2026-10-16 08:16:44.69243 |
| Uptime (30d) | 100% |