🌐 freecodecamp.io 200
Checked: just now 🔗 Visit site
↪
This domain forwards to freecodecamp.org (checked 0d ago)
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 →
N/A
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 →
3/3
IP Address ?The numerical address of the server hosting this website. Reveals location, provider, and network.Read more →
162.255.119.34
Performance ?Lighthouse performance score from Google PageSpeed Insights (0–100). Measures real-world loading speed, interactivity and visual stability.
37 mob
Uptime
100%
⚡ Performance ?Lighthouse performance score from Google PageSpeed Insights (0–100). Measures real-world loading speed, interactivity and visual stability. 37
▼
Mobile
37
Score
96
Accessibility
81
Best Practices
100
SEO
LCP 15.06s
CLS 0.000
FCP 5.04s
TTFB 0.10s
TBT 1,001ms
SI 6.83s
Desktop
40
Score
100
Accessibility
78
Best Practices
100
SEO
LCP 4.21s
CLS 0.000
FCP 1.30s
TTFB 0.19s
TBT 1,130ms
SI 2.57s
Checked: 2026-09-04 17:57:27.472831 · 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 2026-09-02
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Screenshot of freecodecamp.io
Captured: 2026-09-02 11:39:40 · 10.5 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)162.255.119.34
NSdns1.registrar-servers.comdns2.registrar-servers.com
MX10 eforward3.registrar-servers.com15 eforward4.registrar-servers.com20 eforward5.registrar-servers.com10 eforward1.registrar-servers.com10 eforward2.registrar-servers.com
TXT (1)
v=spf1 include:spf.efwd.registrar-servers.com ~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 → Invalid / Missing
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Subject (CN)N/A
IssuerN/A
Valid FromN/A
Valid UntilN/A
📡 HTTP Headers ?Metadata sent by the server: reveals software, caching rules, and security configuration.Read more →
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Status200
Servercloudflare
Content-Typetext/html; charset=utf-8
Final URLhttps://www.freecodecamp.org/
strict-transport-securitymax-age=31536000; includeSubDomains; preload
content-security-policydefault-src 'self' http: https: data: blob: 'unsafe-inline' 'unsafe-eval'; frame-ancestors 'self';
x-frame-optionsSAMEORIGIN
x-content-type-optionsnosniff
referrer-policyno-referrer-when-downgrade
cache-controlpublic, max-age=0, must-revalidate
cf-raya4b765794fd67a4d-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 Address162.255.119.34
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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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.efwd.registrar-servers.com ~all
DMARCNot set
MX Records
10 → eforward3.registrar-servers.com
15 → eforward4.registrar-servers.com
20 → eforward5.registrar-servers.com
10 → eforward1.registrar-servers.com
10 → eforward2.registrar-servers.com
🌍 Other TLDs ?Other top-level domain variants of this domain name and their availability. 9 active 4 for sale 10 available
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.com ●
.net taken
.org ●
.info ●
.io current
.co ●
.dev ●
.app taken
.me taken
.biz Available
.eu Available
.xyz taken
.fi Available
.se Available
.de ●
.uk ●
.fr Available
.nl Available
.es Available
.it Available
.us ●
.ca Available
.com.au Available
.co.uk ●
📡 Uptime Monitor
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Current Status 🟢 Online
HTTP Status 200
Response Time 5003ms
Last Checked 2026-10-15 16:00:40.293716
Uptime (30d) 100%