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researchgate.co.uk 403
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 →
N/A
Domain Expires When the domain registration expires. If not renewed, the domain becomes available to others.Read more →
in 81d
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 →
2/3
IP Address The numerical address of the server hosting this website. Reveals location, provider, and network.Read more →
81.28.232.45
Performance Lighthouse performance score from Google PageSpeed Insights (0–100). Measures real-world loading speed, interactivity and visual stability.
58
mob
Uptime
100%
Performance Lighthouse performance score from Google PageSpeed Insights (0–100). Measures real-world loading speed, interactivity and visual stability. 58
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Mobile
Score
Accessibility
Best Practices
SEO
LCP
6.23s
CLS
0.016
FCP
2.67s
TTFB
0.00s
TBT
630ms
SI
2.67s
Checked: 2026-09-02 11:19:22 · 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
2026-09-01
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Captured: 2026-09-01 05:53:06 · 3.4 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) | 81.28.232.45 |
| NS | ns2.variomedia.dens1.variomedia.de |
| MX | 10 mail.variomedia.de |
| TXT (1) |
v=spf1 include:spf.variomedia.de ?all |
WHOIS / RDAP Public registration data: who registered the domain, when, and when it expires.Read more →
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| Registrar | Variomedia AG |
| Registered | 2008-01-07 |
| Expires | 2027-01-07 (in 81 days) |
| Last Updated | 2026-01-05 |
| Status | active |
SSL Certificate Encrypts the connection between browsers and this website. Valid SSL = HTTPS works.Read more → Invalid / Missing
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| Subject (CN) | N/A |
| Issuer | N/A |
| Valid From | N/A |
| Valid Until | N/A |
HTTP Headers Metadata sent by the server: reveals software, caching rules, and security configuration.Read more →
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| Status | 403 |
| Server | cloudflare |
| Content-Type | text/html; charset=UTF-8 |
| Final URL | https://www.researchgate.net/ |
| strict-transport-security | max-age=31536000; includeSubDomains; preload |
| x-frame-options | SAMEORIGIN |
| referrer-policy | same-origin |
| cache-control | private, max-age=0, no-store, no-cache, must-revalidate, post-check=0, pre-check=0 |
| cf-ray | a4c443966feb2f89-IAD |
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 | 81.28.232.45 |
| Provider | Unknown |
| Organization | N/A |
| ASN | N/A |
| Location | N/A |
Security Score
D (3/7)
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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 include:spf.variomedia.de ?all |
| DMARC | Not set |
| MX Records | 10 → mail.variomedia.de |
Other TLDs Other top-level domain variants of this domain name and their availability. 14 active 1 for sale 8 available
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Uptime Monitor
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| Current Status | 🟢 Client Error |
| HTTP Status | 403 |
| Response Time | 136ms |
| Last Checked | 2026-10-15 17:16:07.0837 |
| Uptime (30d) | 100% |