🌐 duolingo.co 200 🔒 SSL Valid
Checked: (cached 2026-10-25 02:08:05) ↻ Refresh 🔗 Visit site
✨ About this site
A lesser-known site utilizing Apache technology, sharing a name variant with the popular language-learning platform.
📊 What the data says
The website is currently active with an HTTP status of 200 and is served via Apache. Its security certificate remains valid until December 29, 2026.
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 66d
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 →
0/3
IP Address ?The numerical address of the server hosting this website. Reveals location, provider, and network.Read more →
103.224.182.212
Performance ?Lighthouse performance score from Google PageSpeed Insights (0–100). Measures real-world loading speed, interactivity and visual stability.
N/A
Uptime
100%
⚡ 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
Apache
📸 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)103.224.182.212
NSns15.abovedomains.comns16.abovedomains.com
MX10 park-mx.above.com
TXT (1)
v=spf1 ip6:fdcf:abda:4154::/48 -all
📋 WHOIS / RDAP ?Public registration data: who registered the domain, when, and when it expires.Read more →
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RegistrarN/A
RegisteredN/A
ExpiresN/A
Last UpdatedN/A
🔒 SSL Certificate ?Encrypts the connection between browsers and this website. Valid SSL = HTTPS works.Read more → Valid
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Subject (CN)lunivers.com
IssuerLet's Encrypt
Valid From2026-10-01
Valid Until2026-12-30 (66 days left)
SANs (89)*.61.nameserverhosting.com*.account.duolingo.co*.anadroid-api-cf.duolingo.co*.anonymous.duolingo.co*.app.lapang.com*.assets.duolingo.co*.avatars.duolingo.co*.back.duolingo.co*.bexcess.duolingo.co*.brickback.duolingo.co*.bringback.duolingo.co*.bringbback.duolingo.co*.carsearchpro.info*.certs.duolingo.co*.clta.duolingo.co*.cngqqu.nameserverhosting.com*.comledzeppelinhttpswww.duolingo.co*.comwww.lapang.com*.controlpanel.duolingo.co*.cpcontacts.carsearchpro.info +69 more
📡 HTTP Headers ?Metadata sent by the server: reveals software, caching rules, and security configuration.Read more →
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Status200
ServerApache
Content-Typetext/html; charset=UTF-8
Final URLhttps://duolingo.co/
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 Address103.224.182.212
ProviderUnknown
OrganizationN/A
ASNN/A
LocationN/A
🛡️ Security Score F (1/7)
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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.
Areas hidden from crawlers:
📁 Other paths 5
Show raw disallow rules (5)
/cpx.php
/medios1.php
/toolbar.php
/check_image.php
/check_popunder.php
Sitemap Not found
🔗 Social & Meta Tags Missing
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📧 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 ip6:fdcf:abda:4154::/48 -all
DMARCNot set
MX Records
10 → park-mx.above.com
🌍 Other TLDs ?Other top-level domain variants of this domain name and their availability. 21 active 1 for sale 1 available
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.com ●
.net ●
.org ●
.info ●
.io ●
.co current
.dev taken
.app ●
.me ●
.biz ●
.eu ●
.xyz ●
.fi Available
.se ●
.de ●
.uk ●
.fr ●
.nl ●
.es ●
.it ●
.us ●
.ca ●
.com.au ●
.co.uk ●
📡 Uptime Monitor
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Current Status 🟢 Online
HTTP Status 200
Response Time 319ms
Last Checked 2026-10-21 02:15:49.802818
Uptime (30d) 100%
🔗 Similar Sites 8
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duolingo.io 90% duolingo.it 84% duolingo.fr 73% duolingo.com.au 73% duolingo.nl 73% duolingo.com 70% duolingo.es 67% duolingo.co.uk 65%

Similarity based on content analysis. More results appear as more domains are indexed.