🌐 doublelist.nl 200 🔒 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 →
200
SSL Expires ?When the SSL certificate expires. An expired certificate causes browser security warnings.Read more →
in 75d
Domain Expires ?When the domain registration expires. If not renewed, the domain becomes available to others.Read more →
N/A
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 →
217.19.248.132
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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🖥️ Web Server
Nginx
📸 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)217.19.248.132
NSdns1.safenames.comdns3.safenames.orgdns2.safenames.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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RegistrarSafenames LTD
Registered2019-06-21
ExpiresN/A
Last Updated2022-05-18
Statusactive
🔒 SSL Certificate ?Encrypts the connection between browsers and this website. Valid SSL = HTTPS works.Read more → Valid
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Subject (CN)doublelist.nl
IssuerLet's Encrypt
Valid From2026-10-03
Valid Until2027-01-01 (75 days left)
SANs (2)doublelist.nlwww.doublelist.nl
📡 HTTP Headers ?Metadata sent by the server: reveals software, caching rules, and security configuration.Read more →
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Status200
Servernginx
Content-Typetext/html; charset=utf-8
Final URLhttps://doublelist.nl/
content-security-policydefault-src 'none'; style-src 'unsafe-inline'; base-uri 'none'; form-action 'none'
x-content-type-optionsnosniff
referrer-policystrict-origin-when-cross-origin
cache-controlmax-age=300
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 Address217.19.248.132
ProviderUnknown
OrganizationN/A
ASNN/A
LocationN/A
🛡️ Security Score C (4/7)
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Valid SSL
HSTS
CSP
X-Frame-Options
X-Content-Type
Referrer-Policy
Permissions-Policy
🗺️ Sitemap & Robots
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Open to search engines
This site's robots.txt lets crawlers access its main content. Search engines can index it normally.
No paths are disallowed — everything is crawlable.
Sitemap Not found
🔗 Social & Meta Tags Missing
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TitleDomain Registered at Safenames
Languageen
📧 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
🌍 Other TLDs ?Other top-level domain variants of this domain name and their availability. 15 active 2 for sale 6 available
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.com ●
.net ●
.org ●
.info ●
.io ●
.co ●
.dev Available
.app ●
.me ●
.biz ●
.eu ●
.xyz ●
.fi ●
.se Available
.de ●
.uk Available
.fr Available
.nl current
.es taken
.it Available
.us taken
.ca ●
.com.au Available
.co.uk ●
📡 Uptime Monitor
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Not checked yet — data will appear after the first monitoring run.