Domain technical report
Slashdot: News for nerds, stuff that matters, & software
slashdot.org
Slashdot: News for nerds, stuff that matters. Timely news source for technology related news and B2B software reviews & comparisons.
IPv42
IPv60
MX1
NS6
Analyze any domain
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81
Total
75
DNS
90
Email
80
Security
35
Network
100
Availability
Domainslashdot.org
IPv42
IPv60
MX records1
StatusActive
DiagnosticsMain findings and recommendations
IPv4 (A)30 / 30 pts · Dns
2 IPv4 address(es) detected.
IPv6 (AAAA)0 / 10 pts · Dns
0 IPv6 address(es) detected.
Name server redundancy20 / 20 pts · Dns
6 NS record(s); 2 or more required.
SOA record10 / 10 pts · Dns
Authoritative zone record.
DNSSEC chain0 / 15 pts · Dns
Both DS and DNSKEY are required.
CAA policy5 / 5 pts · Dns
Certificate authority restriction.
DNS propagation10 / 10 pts · Dns
Agreement between public resolvers.
MX records20 / 20 pts · Mail
1 MX record(s).
SPF25 / 25 pts · Mail
SPF policy published.
DMARC25 / 25 pts · Mail
DMARC policy published.
DKIM20 / 20 pts · Mail
A DKIM selector was verified.
MTA-STS0 / 5 pts · Mail
Mail transport policy.
TLS-RPT0 / 5 pts · Mail
TLS reporting policy.
Valid TLS certificate55 / 55 pts · Security
17 day(s) remaining.
Certificate lifetime6 / 10 pts · Security
Full points require at least 30 days remaining.
HTTP security headers19 / 35 pts · Security
5 of 9 evaluated headers detected.
PTR reverse DNS0 / 30 pts · Network
PTR not detected.
IPv4 diversity35 / 35 pts · Network
Two or more IPv4 addresses receive full points.
IPv6 connectivity0 / 35 pts · Network
AAAA availability.
DNS resolution40 / 40 pts · Availability
At least one address family must resolve.
HTTP response40 / 40 pts · Availability
HTTP/2 200
HTTPS final URL20 / 20 pts · Availability
Final URL uses HTTPS.
DNS and emailPublished records and email configuration
A
2 record(s)104.18.4.215 104.18.5.215
AAAA
0 record(s)—
Not configured
CNAME
0 record(s)—
Not configured
MX
1 record(s)10 mx.sourceforge.net.
TXT
10 record(s)"brave-ledger-verification=4d77fce14921bcdfa7fb16e9086b7006958551a1fddd0bad8181c14cc63fa9e5" "google-site-verification=ZbCscTBXGpjHX5RXLk1jcBu2tufiv-2mOmk_YZ4HWag" "google-site-verification=mwj5KfwLNG8eetH4m5w1VEUAzUlHotrNwnprxNQN5Io" "ca3-2ee991aacde4477d8f87191e5892ea4e" "google-site-verification=jFAuqCOYSH2xJlPDh77tHRwZ9VtcS_3ebHBCCO_ndiY" "yandex-verification: 12ee25860da9b12f" "tollbit-domain-verification=28de5e4a29113eb7d5f7e603d7d3440cecdbd41338c3e29a8da963c40e7c0631" "ca3-d544fc84b0da44919971660318584992 " "v=spf1 ip4:216.105.38.0/26 ip4:216.34.181.51 include:servers.mcsv.net -all" "google-site-verification=uNYSi1PcKvBrZjpA8ftcmExM2qpIK5OMd6I13B2m8YI"
NS
6 record(s)ns51.constellix.net. ns21.constellix.com. ns61.constellix.net. ns11.constellix.com. ns41.constellix.net. ns31.constellix.com.
SOA
1 record(s)ns11.constellix.com. dns.constellix.com. 2015010576 43200 3600 1209600 180
CAA
6 record(s)0 iodef "mailto:siteops@slashdotmedia.com" 0 issue "amazon.com" 0 issue "letsencrypt.org" 0 issue "sectigo.com" 0 issue "cloudflare.com" 0 issue "digicert.com"
DS
0 record(s)—
Not configured
DNSKEY
0 record(s)—
Not configured
RRSIG
0 record(s)—
Not configured
NSEC
0 record(s)—
Not configured
NSEC3
0 record(s)—
Not configured
SRV
0 record(s)—
Not configured
NAPTR
0 record(s)—
Not configured
TLSA
0 record(s)—
Not configured
SSHFP
0 record(s)—
Not configured
SPF
Configuredv=spf1 ip4:216.105.38.0/26 ip4:216.34.181.51 include:servers.mcsv.net -all
DMARC
Configuredv=DMARC1; p=reject; rua=mailto:ipm1wcw@ar.glockapps.com; ruf=mailto:ipm1wcw@fr.glockapps.com; fo=1;
DKIM
Selector xv=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCdaR/98pMWddS+zAoJOvJt+c0EQRiz11JPUwFTkf7vft5MYRGnl/HrjPWDSOIJE7Rqg6EEbW+0MPcj/PIajC58QvV6Xo6gzskvXSl+n4/He/GwoAP63Pan/gaxXaTYsOFSgCeg1PglB9v5MVc8AdvY30nVgGZn1evQvlbwJDGDtwIDAQAB
Analyzed webpageMetadata and HTTP response
Title and description
ExtractedTitle
Slashdot: News for nerds, stuff that matters, & software
Description
Slashdot: News for nerds, stuff that matters. Timely news source for technology related news and B2B software reviews & comparisons.
Final URL
https://slashdot.org/
HTTP status
200
HTTP
Status
HTTP/2 200
Final URL
https://slashdot.org/
Version
3
Server
cloudflare
X-Powered-By
SSL and HTTP securityCertificate, protocol and security headers
SSL certificate
AvailableAvailable
Yes
Issuer
Let's Encrypt
CN
slashdot.org
Valid from
2026-05-27T18:54:20-05:00
Valid until
2026-08-25T18:54:19-05:00
Days remaining
17
Protocol
TLSv1.3
Cipher
TLS_AES_256_GCM_SHA384
Security headers
5 activeHSTSImplemented
Content Security PolicyImplemented
X-Content-Type-OptionsNot detected
X-Frame-OptionsImplemented
Referrer PolicyNot detected
Permissions PolicyImplemented
Cross-Origin-Opener-PolicyImplemented
Cross-Origin-Embedder-PolicyNot detected
Cross-Origin-Resource-PolicyNot detected
DNS propagationComparison across public resolvers
Public resolver comparison
ConsistentConsistent propagation
5 public resolvers queried.
ResolverServerResultLatency
Google
8.8.8.8104.18.4.215, 104.18.5.215
97,18 ms
Cloudflare
1.1.1.1104.18.4.215, 104.18.5.215
25,72 ms
Quad9
9.9.9.9104.18.4.215, 104.18.5.215
26,55 ms
OpenDNS
208.67.222.222104.18.4.215, 104.18.5.215
59,15 ms
AdGuard
94.140.14.14104.18.4.215, 104.18.5.215
61,17 ms
IP, geolocation and ASNAssociated network information
104.18.4.215
No datasuccess
No
country
region
city
asn
organization
isp
104.18.5.215
No datasuccess
No
country
region
city
asn
organization
isp
Visitor information
Visitorip
216.73.217.62
reverse
country
country_code
region
city
latitude
longitude
isp
organization
asn
timezone
browser
Other
os
Other
language
user_agent
Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)
is_bot
Yes
cloudflare
No
SMTPEmail port connectivity
mx.sourceforge.net
Port 25: Closed/unreachable - 8.8 ms - Port 465: Closed/unreachable - 4028.9 ms - Port 587: Closed/unreachable - 4028.8 ms -