🌐 hrs.co.uk 521 🔒 SSL Valid
Checked: (cached 2026-10-27 07:44:46) ↻ Refresh 🔗 Visit site
✨ AI Description
This website appears to be a domain intelligence and monitoring resource for the **.co.uk** domain “hrs,” providing status and technical insights such as whether a web server is reachable. It indicates that the target service is currently unavailable (e.g., “521: Web server is down”), likely using Cloudflare-related connectivity checks.
HTTP Status ?A three-digit code showing if the site loaded successfully (200), redirects (301/302), or has errors (4xx/5xx).Read more →
521
SSL Expires ?When the SSL certificate expires. An expired certificate causes browser security warnings.Read more →
in 76d
Domain Expires ?When the domain registration expires. If not renewed, the domain becomes available to others.Read more →
in 1149d
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 →
104.21.95.218
Performance ?Lighthouse performance score from Google PageSpeed Insights (0–100). Measures real-world loading speed, interactivity and visual stability.
N/A
Uptime
N/A
⚡ 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)104.21.95.218172.67.148.170
AAAA (IPv6)2606:4700:3032::ac43:94aa2606:4700:3031::6815:5fda
NSariella.ns.cloudflare.comsergi.ns.cloudflare.com
MX0 _dc-mx.87b20a765ca8.hrs.co.uk
TXT (2)
Services configured via TXT:
Microsoft 365
Show all TXT records
MS=ms79223757
v=spf1 ip4:91.238.160.7 ip4:91.238.163.160 +a +mx include:spf.hostns.io ~all
📋 WHOIS / RDAP ?Public registration data: who registered the domain, when, and when it expires.Read more →
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RegistrarEnix Ltd
Registered1994-12-20
Expires2029-12-20 (in 1149 days)
Last Updated2026-05-04
Statusactive
🔒 SSL Certificate ?Encrypts the connection between browsers and this website. Valid SSL = HTTPS works.Read more → Valid
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Subject (CN)hrs.co.uk
IssuerLet's Encrypt
Valid From2026-10-14
Valid Until2027-01-12 (76 days left)
SANs (2)*.hrs.co.ukhrs.co.uk
📡 HTTP Headers ?Metadata sent by the server: reveals software, caching rules, and security configuration.Read more →
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Status521
Servercloudflare
Content-Typetext/plain; charset=UTF-8
Final URLhttps://hrs.co.uk/
x-frame-optionsSAMEORIGIN
referrer-policysame-origin
cache-controlprivate, max-age=0, no-store, no-cache, must-revalidate, post-check=0, pre-check=0
cf-raya51013d1ba8f1727-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 Address104.21.95.218
ProviderUnknown
OrganizationN/A
ASNN/A
LocationN/A
🛡️ Security Score D (3/7)
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Valid SSL
HSTS
CSP
X-Frame-Options
X-Content-Type
Referrer-Policy
Permissions-Policy
🗺️ Sitemap & Robots
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No robots.txt
This site has no robots.txt file, so crawlers may access everything by default.
Sitemap Not found
🔗 Social & Meta Tags Missing
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Titlehrs.co.uk | 521: Web server is down
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 ip4:91.238.160.7 ip4:91.238.163.160 +a +mx include:spf.hostns.io ~all
DMARC✓ Present
v=DMARC1;p=quarantine;sp=none;adkim=r;aspf=r;pct=100;fo=0;rf=afrf;ri=86400;rua=mailto:[email protected]
MX Records
0 → _dc-mx.87b20a765ca8.hrs.co.uk
🌍 Other TLDs ?Other top-level domain variants of this domain name and their availability. 13 active 10 for sale
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.com ●
.net ●
.org ●
.info ●
.io taken
.co taken
.dev ●
.app ●
.me taken
.biz taken
.eu taken
.xyz ●
.fi taken
.se ●
.de ●
.uk ●
.fr taken
.nl ●
.es taken
.it taken
.us ●
.ca ●
.com.au taken
.co.uk current
📡 Uptime Monitor
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Not checked yet — data will appear after the first monitoring run.