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81
Total
75
DNS
90
Email
77
Security
50
Network
100
Availability
Domaineff.org
IPv41
IPv60
MX records1
StatusActive
Domain technical report

Electronic Frontier Foundation | Defending your rights in the digital world

eff.org

Defending your rights in the digital world

Generated: 2026-08-08T18:03:39-05:00 · Cached result

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IPv41
IPv60
MX1
NS3

DiagnosticsMain findings and recommendations

✓
IPv4 (A)30 / 30 pts · Dns

1 IPv4 address(es) detected.

!
IPv6 (AAAA)0 / 10 pts · Dns

0 IPv6 address(es) detected.

✓
Name server redundancy20 / 20 pts · Dns

3 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

82 day(s) remaining.

✓
Certificate lifetime10 / 10 pts · Security

Full points require at least 30 days remaining.

i
HTTP security headers12 / 35 pts · Security

3 of 9 evaluated headers detected.

✓
PTR reverse DNS30 / 30 pts · Network

PTR: observatory1.eff.org

i
IPv4 diversity20 / 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

1 record(s)
173.239.79.200

AAAA

0 record(s)
—

Not configured

CNAME

0 record(s)
—

Not configured

MX

1 record(s)
0 eff-org.mail.protection.outlook.com.

TXT

3 record(s)
"google-site-verification=Xqf-4VNlMzsu7X8mmX33O3jdZcvFavWtZen9xLBZ5S4"
"v=spf1 mx ip4:173.239.79.202 include:spf1.eff.org include:spf2.eff.org include:spf.protection.outlook.com include:salsalabs.org -all"
"ms-domain-verification=55064e24-4bc6-4f21-a39c-f9c0b295f3f3"

NS

3 record(s)
ns2.eff.org.
ns1.eff.org.
ns4.eff.org.

SOA

1 record(s)
ns1.eff.org. hostmaster.eff.org. 2026080402 600 1800 604800 1800

CAA

7 record(s)
0 issue "letsencrypt.org"
0 issuewild "ssl.com"
0 issue "ssl.com"
0 issuewild "letsencrypt.org"
0 issue "comodoca.com"
0 iodef "mailto:caa@eff.org"
0 issuewild "comodoca.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

23 record(s)
190 10 "" "     @@@@@@@!!!!!!!!!!!!!!!!!!!!  !!!!!!!!!!!!!!!!!!!       " "" .
160 10 "" "     @@@@@@@@@@@@@@@@@@!!!!!!!!!     !!!!!!!!!!!!!!         " "" .
200 10 "" "     @@@@@@@!!!!!!!!!!!!!!!!!!!!  !!!!!!!!!!!!!!!!!!!       " "" .
150 10 "" "            !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!          " "" .
240 10 "" "     @@@@@@@!!!!!!!!!!!!!!!!!!!!  !!!!!!!!!!!!!!!!!!        " "" .
260 10 "" "     @@@@@@@@@@@@@@@@@@!!!!!!!!!  !!!!!!!!!!!!!!!!          " "" .
120 10 "" "                   !!!!!!!!!!!!!!!!!!!!!!!!                 " "" .
180 10 "" "     @@@@@@@!!!!!!!!!!!!!!!!!!!!    !!!!!!!!!!!!!!!!        " "" .
140 10 "" "              !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!            " "" .
220 10 "" "     @@@@@@@@@@@@@@@@@@!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!       " "" .
320 10 "" "                         !!!!!!!!!!!                        " "" .
280 10 "" "            !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!            " "" .
310 10 "" "                     !!!!!!!!!!!!!!!!!!                     " "" .
230 10 "" "     @@@@@@@!!!!!!!!!!!!!!!!!!!!     !!!!!!!!!!!!!!!!       " "" .
130 10 "" "                !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!              " "" .
290 10 "" "              !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!              " "" .
100 10 "" "                          !!!!!!!!!                         " "" .
110 10 "" "                      !!!!!!!!!!!!!!!!!!                    " "" .
250 10 "" "     @@@@@@@!!!!!!!!!!!!!!!!!!!!    !!!!!!!!!!!!!!!         " "" .
170 10 "" "     @@@@@@@@@@@@@@@@@@!!!!!!!!!  !!!!!!!!!!!!!!!!!!        " "" .
210 10 "" "     @@@@@@@@@@@@@@@@@@!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!       " "" .
270 10 "" "     @@@@@@@@@@@@@@@@@@!!!!!!!!!  !!!!!!!!!!!!!!!           " "" .
300 10 "" "                 !!!!!!!!!!!!!!!!!!!!!!!!!!                 " "" .

TLSA

0 record(s)
—

Not configured

SSHFP

0 record(s)
—

Not configured

SPF

Configured
v=spf1 mx ip4:173.239.79.202 include:spf1.eff.org include:spf2.eff.org include:spf.protection.outlook.com include:salsalabs.org -all

DMARC

Configured
v=DMARC1; p=none; rua=mailto:dmarc_rua@eff.org; ruf=mailto:dmarc_ruf@eff.org;

DKIM

Selector selector1
v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAtttWazSyHy//AD8mA/ufw1JtA1rMv9+makXNyubUq8tq8gZVgWAdFJPiEVHllHxrgP1WGrh5oby0KmlokqQCbr6z56Pj9gvGdJ9t3I1f6Lb8eHLVXGXFFArFnbXIQgTDmba1JlYpVOdZpw7EIT1xKwQgyHCcZGwJXxnzpX8Pa7pW+/uOvl946DzcPzifyWZ7r59sf29z52EJIA2qCSnVvIWH0OAwdg4ugTXho1H8+tmt6PiX+15C+DY52yDFmEZzMP4qzyENe5sG5HWVYhPC7MxhJbG1ounG1g1xolmGLtV+fwImNiUyyqIk+KnVR87v0gXXH9MFcryuFiu3Eoh71QIDAQAB;

Analyzed webpageMetadata and HTTP response

Title and description

Extracted
Title
Electronic Frontier Foundation | Defending your rights in the digital world
Description
Defending your rights in the digital world
Final URL
https://www.eff.org/
HTTP status
206

HTTP

Status
HTTP/2 200
Final URL
https://www.eff.org/
Version
3
Server
nginx
X-Powered-By

SSL and HTTP securityCertificate, protocol and security headers

SSL certificate

Available
Available
Yes
Issuer
Let's Encrypt
CN
eff.org
Valid from
2026-08-01T13:43:44-05:00
Valid until
2026-10-30T13:43:43-05:00
Days remaining
82
Protocol
TLSv1.2
Cipher
ECDHE-ECDSA-AES256-GCM-SHA384

Security headers

3 active
✓
HSTSImplemented
—
Content Security PolicyNot detected
✓
X-Content-Type-OptionsImplemented
✓
X-Frame-OptionsImplemented
—
Referrer PolicyNot detected
—
Permissions PolicyNot detected
—
Cross-Origin-Opener-PolicyNot detected
—
Cross-Origin-Embedder-PolicyNot detected
—
Cross-Origin-Resource-PolicyNot detected

DNS propagationComparison across public resolvers

Public resolver comparison

Consistent
✓
Consistent propagation

5 public resolvers queried.

ResolverServerResultLatency
Google
8.8.8.8
173.239.79.200
92,32 ms
Cloudflare
1.1.1.1
173.239.79.200
96,64 ms
Quad9
9.9.9.9
173.239.79.200
101,49 ms
OpenDNS
208.67.222.222
173.239.79.200
96,29 ms
AdGuard
94.140.14.14
173.239.79.200
40,82 ms

IP, geolocation and ASNAssociated network information

173.239.79.200

No data
success
No
country
region
city
asn
organization
isp

Visitor information

Visitor
ip
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

eff-org.mail.protection.outlook.com

Port 25: Closed/unreachable - 18.5 ms - 
Port 465: Closed/unreachable - 4055.2 ms - 
Port 587: Closed/unreachable - 4004 ms -

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