🌐 sourceforge.io 403 🔒 SSL Valid
Checked: just now 🔗 Visit site
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This domain forwards to sourceforge.net (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 →
403
SSL Expires ?When the SSL certificate expires. An expired certificate causes browser security warnings.Read more →
in 23d
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 →
2/3
IP Address ?The numerical address of the server hosting this website. Reveals location, provider, and network.Read more →
104.18.10.31
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.
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No technologies detected

📸 Screenshot
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Screenshot not available yet.

🌐 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)104.18.10.31104.18.11.31
NSns21.constellix.comns31.constellix.comns41.constellix.netns51.constellix.netns61.constellix.netns11.constellix.com
MX5 alt2.aspmx.l.google.com10 alt3.aspmx.l.google.com10 alt4.aspmx.l.google.com1 aspmx.l.google.com5 alt1.aspmx.l.google.com
TXT (7)
Services configured via TXT:
Google3 Microsoft 365 Tollbit
+1 other TXT record(s)
Show all TXT records
google-site-verification=0YvDxZW-X0Hrap2-HvOasaW6dJS2VSOUXgvKylJxUEQ
MS=ms23597098
bw=I8rX/v8khEjS/avbErWKCdPX5uo94GMU5H/0KfyfoQ4+
tollbit-domain-verification=28a0f41200da030331b575c81b582ac6feca635d1a428a5c231b6a86064dcef7
v=spf1 include:servers.mcsv.net include:_spf.google.com include:sparkpostmail.com include:intuit.slashdotmedia.com ip4:216.105.42.92 ip4:216.34.181.0/24 ip4:76.251.79.34 ip4:216.105.38.6 -all
google-site-verification=V5ZanAy0CqVq2zLLMhNEq01dqyMHRWjJx6xh0UNRhLo
google-site-verification=mNkDujnPx_Ked3s-e07xeFUd7wCtib1BNkNFlok-Nsc
📋 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)sourceforge.io
IssuerLet's Encrypt
Valid From2026-08-12
Valid Until2026-11-10 (23 days left)
SANs (3)*.cftest.sourceforge.io*.sourceforge.iosourceforge.io
📡 HTTP Headers ?Metadata sent by the server: reveals software, caching rules, and security configuration.Read more →
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Status403
Servercloudflare
Content-Typetext/html; charset=UTF-8
Final URLhttps://sourceforge.net/
content-security-policydefault-src 'none'; script-src 'nonce-ByfVEQ9UcVDVNJEx7kE9z3' 'unsafe-eval' https://challenges.cloudflare.com; script-src-attr 'none'; style-src 'unsafe-inline'; img-src 'self' https://challenges.cloudflare.com; connect-src 'self' https://challenges.cloudflare.com; frame-src 'self' https://challenges.cloudflare.com blob:; child-src 'self' https://challenges.cloudflare.com blob:; worker-src blob:; form-action http: https:; base-uri 'self'
x-frame-optionsSAMEORIGIN
x-content-type-optionsnosniff
referrer-policysame-origin
permissions-policyaccelerometer=(),camera=(),clipboard-read=(),clipboard-write=(),geolocation=(),gyroscope=(),hid=(),magnetometer=(),microphone=(),payment=(),publickey-credentials-get=(),screen-wake-lock=(),serial=(),sync-xhr=(),usb=(),xr-spatial-tracking=*
cf-raya4c5d96139dc9bb5-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 Address104.18.10.31
ProviderUnknown
OrganizationN/A
ASNN/A
LocationN/A
🛡️ Security Score A (6/7)
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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:servers.mcsv.net include:_spf.google.com include:sparkpostmail.com include:intuit.slashdotmedia.com ip4:216.105.42.92 ip4:216.34.181.0/24 ip4:76.251.79.34 ip4:216.105.38.6 -all
DMARC✓ Present
v=DMARC1; p=reject; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1;
MX Records
5 → alt2.aspmx.l.google.com
10 → alt3.aspmx.l.google.com
10 → alt4.aspmx.l.google.com
1 → aspmx.l.google.com
5 → alt1.aspmx.l.google.com
🌍 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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.com ●
.net ●
.org ●
.info ●
.io current
.co ●
.dev Available
.app Available
.me ●
.biz ●
.eu ●
.xyz Available
.fi Available
.se Available
.de ●
.uk ●
.fr ●
.nl taken
.es Available
.it ●
.us ●
.ca Available
.com.au Available
.co.uk ●
📡 Uptime Monitor
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Not checked yet — data will appear after the first monitoring run.