🌐 calculator.org 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 76d
Domain Expires ?When the domain registration expires. If not renewed, the domain becomes available to others.Read more →
in 380d
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 →
20.62.72.11
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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📊 Analytics
Google Analytics
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🌐 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)20.62.72.11
NSz.ns.joker.comy.ns.joker.comx.ns.joker.com
TXT (2)
Services configured via TXT:
Google
+1 other TXT record(s)
Show all TXT records
cpm2y2rq71fnv4yqndq117qwm4f5nmw6
google-site-verification=vw818_LE5GYKBOKSu7mpWTCMqKGTUyNK0_b0_i8Tu8I
📋 WHOIS / RDAP ?Public registration data: who registered the domain, when, and when it expires.Read more →
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RegistrarCSL Computer Service Langenbach GmbH d/b/a joker.com
Registered1999-11-09
Expires2027-11-09 (in 380 days)
Last Updated2026-10-15
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)calculator.org
IssuerDigiCert Inc
Valid From2026-07-10
Valid Until2027-01-09 (76 days left)
SANs (1)calculator.org
📡 HTTP Headers ?Metadata sent by the server: reveals software, caching rules, and security configuration.Read more →
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Status200
ServerN/A
Content-Typetext/html
Final URLhttps://www.calculator.org/
strict-transport-securitymax-age=10886400; includeSubDomains; preload
content-security-policydefault-src https: 'unsafe-eval' 'unsafe-inline'; object-src 'none'
x-content-type-optionsnosniff
referrer-policysame-origin
cache-controlpublic, must-revalidate, max-age=30
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 Address20.62.72.11
ProviderUnknown
OrganizationN/A
ASNN/A
LocationN/A
🛡️ Security Score B (5/7)
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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.
⏱️ Crawl delay: 5s
Sitemap Not found
🔗 Social & Meta Tags Partial
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Titlecalculator.org - calculator.org
DescriptionThe calculator home page
Languageen
📧 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. 22 active 1 for sale
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.com ●
.net ●
.org current
.info ●
.io ●
.co ●
.dev ●
.app ●
.me ●
.biz ●
.eu ●
.xyz taken
.fi ●
.se ●
.de ●
.uk ●
.fr ●
.nl ●
.es ●
.it ●
.us ●
.ca ●
.com.au ●
.co.uk ●
📡 Uptime Monitor
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Not checked yet — data will appear after the first monitoring run.