HOW.IS
?

How is sourceforge.net?

Looks fine risk 0/100

Registered 27 years ago, on no blocklists we checked, valid HTTPS, the site answered 403 in 42 ms.

Why

02050100
finecarefulhigh risk
  • ·Nothing in the checks added risk.

Rule-based: domain age, blocklists, TLS. A heuristic, not a guarantee.

How sourceforge.net looks right now
The home page, rendered by how.is in a sandboxed browser. Nothing on it is clickable here.
Site
403
42 ms
HTTPS
15 d
left on a Let's Encrypt certificate
Age
27 years
registered 1999-08-08
Blocklists
0
listings across 5 lists

Everything we looked at

DNS records6 record types
A104.18.12.149
104.18.13.149
AAAA2606:4700::6812:c95
2606:4700::6812:d95
MX10 mx.sourceforge.net
NSns61.constellix.net
ns11.constellix.com
ns41.constellix.net
ns31.constellix.com
ns51.constellix.net
ns21.constellix.com
TXTyandex-verification: eddadce308154a90
SourceForge, Inc.
abuseipdb-verification=dvyMFAir
google-site-verification=HugCfmT_JOUQaz6xbszx1O9W3ccm_Dh5GiageK7egmM
tollbit-domain-verification=bae1f5123238c200f3429dba2556501be81cc1ab0b0f0692146e362a49979895
brave-ledger-verification=09845b65316c1613c72337595c391c4675fff6ae8923768232dc3f6c661af14b
ca3-33e180a2afaa4c86951f4a8ad123e300
ca3-1594c24430d2487fad7bceaec2fa251f
ca3-8b7801430b214be99a3325aab5d0d899
v=spf1 include:sparkpostmail.com include:servers.mcsv.net ip4:216.105.38.0/26 -all
CAA{'type': 'CAA', 'iodef': 'mailto:siteops@slashdotmedia.com', 'critical': 0}
{'type': 'CAA', 'issue': 'amazon.com', 'critical': 0}
{'type': 'CAA', 'issue': 'sectigo.com', 'critical': 0}
{'type': 'CAA', 'issue': 'letsencrypt.org', 'critical': 0}
{'type': 'CAA', 'issue': 'digicert.com', 'critical': 0}
RegistrationGoDaddy.com, LLC
registrarGoDaddy.com, LLC
registered1999-08-08
expires2027-08-08
last changed2024-08-08
nameserversns11.constellix.com
ns21.constellix.com
ns31.constellix.com
ns41.constellix.net
ns51.constellix.net
ns61.constellix.net
statusclient delete prohibited
client renew prohibited
client transfer prohibited
client update prohibited
registered 1999-08-08expires 2027-08-08
HTTPS certificate15 days left
validyes
issuerLet's Encrypt
covers*.sourceforge.net, *.users.sourceforge.net, sourceforge.net
protocolTLSv1.3
issued 2026-08-12expires 2026-11-10
DNSSECinsecure

Domain is not signed with DNSSEC

. → net → sourceforge.net
Email authenticationgood
SPFpass v=spf1 include:sparkpostmail.com include:servers.mcsv.net ip4:216.105.38.0/26 -all
DMARCpass policy quarantine
DKIMnone of 1 common selectors

Whether mail claiming to be from this domain can be checked as genuine.

Security scoregrade A · 175/205
Basic Security
20/40missing: DNSSEC Enabled
Record Security
45/45missing: DKIM Presence
Advanced Security
15/25missing: Mail Server Configuration, SOA Record Configuration
Domain Reputation
50/50
Threat Detection
45/45missing: Domain Age Check
Blocklists0 listings · 8 lookups
SURBL MultidomainURIBL MultidomainSpamCop104.18.12.149Barracuda104.18.12.149UCEPROTECT Level 1104.18.12.149SpamCop104.18.13.149Barracuda104.18.13.149UCEPROTECT Level 1104.18.13.149

Green: clean. Red: listed. Grey: the list did not answer.

Ask it yourself

Agents get this as data. Bought through the API, the checks behind this page cost $0.070: profile $0.025 + trust $0.020 + screenshot $0.020 + site status $0.005.

curl "https://how.is/v1/domain/trust?domain=sourceforge.net" \ -H "Authorization: Bearer $HOWIS_KEY" # or pay per call in USDC (x402), no key: the 402 tells your agent the price curl -i "https://how.is/v1/domain/profile?domain=sourceforge.net"

MCP: add https://how.is/mcp to Claude, Codex or Cursor (one-line install) and ask for domain_trust on sourceforge.net. Reference: /llms.txt.

Watch sourceforge.net. DNS read at the source every 5 minutes; certificate, blocklists and expiry every 6 hours. You get an email only when something changes.

Watch — $1 / 30 days