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92
Total
100
DNS
95
Email
84
Security
70
Network
100
Availability
Domainfirst.org
IPv44
IPv64
MX records1
StatusActive
Domain technical report

FIRST - Improving Security Together

first.org

Generated: 2026-08-10T08:08:07-05:00 · Cached result

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IPv44
IPv64
MX1
NS4

DiagnosticsMain findings and recommendations

✓
IPv4 (A)30 / 30 pts · Dns

4 IPv4 address(es) detected.

✓
IPv6 (AAAA)10 / 10 pts · Dns

4 IPv6 address(es) detected.

✓
Name server redundancy20 / 20 pts · Dns

4 NS record(s); 2 or more required.

✓
SOA record10 / 10 pts · Dns

Authoritative zone record.

✓
DNSSEC chain15 / 15 pts · Dns

DS and DNSKEY detected.

✓
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-RPT5 / 5 pts · Mail

TLS reporting policy.

✓
Valid TLS certificate55 / 55 pts · Security

78 day(s) remaining.

✓
Certificate lifetime10 / 10 pts · Security

Full points require at least 30 days remaining.

i
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 connectivity35 / 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

4 record(s)
151.101.65.91
151.101.1.91
151.101.193.91
151.101.129.91

AAAA

4 record(s)
2a04:4e42::347
2a04:4e42:400::347
2a04:4e42:600::347
2a04:4e42:200::347

CNAME

0 record(s)
—

Not configured

MX

1 record(s)
10 smtp.google.com.

TXT

10 record(s)
"apple-domain-verification=GgAjgsIIrixArVTv"
"A86EA43005"
"google-site-verification=bB9Dx6RUOmMrzLAi5fmHvyWH9T9xj21y3x9PMiSgCAs"
"protonmail-verification=b716ce837b8acfe07109e34ce8cb6bb4c7caec29"
"google-site-verification=OZ6h6fMZcaV1zl2RqvaZn-lgt4lWC-s5dsRMLx4r1lI"
"mgverify=0f90742e1eccec87c0d17ac7f8eea7e59bc3f275f5cddd9a24495d80533c475c"
"atlassian-sending-domain-verification=31b65062-6395-46ea-97f4-9cf212b67b92"
"docusign=3b600cf0-7dbb-4641-bcc1-8e0b170e8881"
"atlassian-domain-verification=aXT6WAegKE1O89WZk8p15NS6ikv2dJzIRE1j8y1jePrHBp08X/0xwLKeE8Z3FNQN"
"v=spf1 include:_spf.google.com include:amazonses.com ~all"

NS

4 record(s)
dns3.p04.nsone.net.
dns4.p04.nsone.net.
dns2.p04.nsone.net.
dns1.p04.nsone.net.

SOA

1 record(s)
dns1.p01.nsone.net. hostmaster.nsone.net. 1686850997 21600 3600 604800 86400

CAA

3 record(s)
0 issue "digicert.com"
0 issue "letsencrypt.org"
0 iodef "mailto:caa@first.org"

DS

1 record(s)
48553 13 2 1327115B6EBEE9BE727E3190BE88C82D3628AA41F873904AEAACF494 D8217D72

DNSKEY

2 record(s)
256 3 13 3u9onSaqbxIlglXMHjh5Plcah8n2pXj0QuBVY/6YTdC6L/eUEYPDh57n OVJ8dd3fkPMrjt2Oij6J9EeLqyeuBw==
257 3 13 t+4DPP+MFZ0Cr7gAXiDYv6HTyXzq/O2ESVRLc/ysuh5xBXKIsjsj5baV 1HzhBNo2F7mbsevsEo0/6UEL8+JBmA==

RRSIG

8 record(s)
NS 13 2 3600 20260811140757 20260810120757 12196 first.org. /qYh6ogR5RbcCOMhv18UtXMQJHb7usvKJ7/QTPfddDKIoZdVySyoE+L9 i3yp+n/GX8KIooAEqtBKgmR+1By4dw==
AAAA 13 2 3600 20260811140749 20260810120749 12196 first.org. yeahIEucBnWBS0no63gLxmzg+eT6qamoHYwPJdFDuvnUMv+1PTlybS8n RfwQOMvLL3iTXWPaEBbiNUdwZy+zVQ==
DNSKEY 13 2 60 20260817003845 20260809233845 48553 first.org. +aoByXBm9L5pXlG8613rOY+MtNXUc4u5sPEmRLgrlf6h1EfXtG+0mk8P 6HO5BltWgtQoYmp0xIuSk81Gp466YA==
SOA 13 2 60 20260811140748 20260810120748 12196 first.org. lG5AB/jxJQRYu33bQReIVOJSqlWTBZ59eKafZTxMfwDY2l2iJXpgAjpC rdCuhCO/o7OAOxUn9U++ooJih8H06w==
TXT 13 2 3600 20260811140748 20260810120748 12196 first.org. MU29sKLC7gGjIqnLR49fyUAeYEnDFdqJ0/d3gWkYyG6FcHfDfAUoindA IZOAgZO43s2JjW6DkXfkCukipprv8g==
A 13 2 3600 20260811140747 20260810120747 12196 first.org. w9ZpRCmEReijLswwcqRNdRPBkeG07sCU65FdrNWHJkDLJWYTo2FsDAbp kTZqOK/u9oTgccAcpebt2RXGltIKOQ==
DS 8 2 3600 20260830152406 20260809142406 44925 org. qguweBTSz4eh5YczYgfrG328mLhBzbU44RMuwk9DA9JXWcs+pu2a3r6W jhoAQgGrL1PAqjicU3rp5LOs6jWyl8+WkXih+yC9rpTnGqhY6nueX8t6 Ch8Z3XJCTh/F7NdsWii6gbSEpHxrifrAU9chNVxa9epK2KG3a+f+qPeP Nvc=
CAA 13 2 3600 20260811140757 20260810120757 12196 first.org. B3C9xfXHCENEm67IFpG/Ta28vt1X67T/HGudEcuAKQf3ckRe366LO6ak JnehnQdt70e43pafKE1nuXuoUyW7Nw==

NSEC

1 record(s)
\000.first.org. A NS SOA MX TXT AAAA RRSIG NSEC DNSKEY CAA

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

Configured
v=spf1 include:_spf.google.com include:amazonses.com ~all

DMARC

Configured
v=DMARC1; p=reject; sp=reject; rua=mailto:re+39813ba4db0a@inbound.dmarcdigests.com,mailto:re+ijogpxfnrby@dmarc.postmarkapp.com,mailto:rua@dmarc360.com; adkim=r; aspf=r; ri=86400; rf=afrf; pct=100;

DKIM

Selector google
v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA5DRAWYldXzrSAC2KXAnX9w0E7u7uzgn9BXspSlKQI0lIr52nPFWgLwxOdr7SfB2Rzrxeg8ttW16Qcd8s6O95rAHclisH7fn08FV7ifWtov+ps6tK9zKHPrJ/33gQP+DmXpdMpCxAk/gCtwec2tV0+E6SoLnJRdrXYcXOjc3ixCwBk9he56tO3TUUzTfqQG0f7cP7rFLvzJzF/oagZXPd2bET2Ev4moWgF7/ep8hmAbkmoEssNxax7xOygDwrwYnaLi+9lhF6Kx6zSOhkA2fxT9CnD7Q8rUQaWXkRh63VMvSpbwBlyZjbP+vgo0ElDbbaJsNcguLIUdBR9z57wbe38QIDAQAB

Analyzed webpageMetadata and HTTP response

Title and description

Extracted
Title
FIRST - Improving Security Together
Description
Final URL
https://www.first.org/
HTTP status
206

HTTP

Status
HTTP/2 200
Final URL
https://www.first.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
www.first.org
Valid from
2026-07-29T12:08:00-05:00
Valid until
2026-10-27T12:07:59-05:00
Days remaining
78
Protocol
TLSv1.3
Cipher
TLS_AES_128_GCM_SHA256

Security headers

5 active
✓
HSTSImplemented
✓
Content Security PolicyImplemented
✓
X-Content-Type-OptionsImplemented
✓
X-Frame-OptionsImplemented
✓
Referrer PolicyImplemented
—
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
151.101.1.91, 151.101.129.91, 151.101.193.91, 151.101.65.91
72,19 ms
Cloudflare
1.1.1.1
151.101.1.91, 151.101.129.91, 151.101.193.91, 151.101.65.91
45,91 ms
Quad9
9.9.9.9
151.101.1.91, 151.101.129.91, 151.101.193.91, 151.101.65.91
51,07 ms
OpenDNS
208.67.222.222
151.101.1.91, 151.101.129.91, 151.101.193.91, 151.101.65.91
55,10 ms
AdGuard
94.140.14.14
151.101.1.91, 151.101.129.91, 151.101.193.91, 151.101.65.91
56,94 ms

IP, geolocation and ASNAssociated network information

151.101.65.91

No data
success
No
country
region
city
asn
organization
isp

151.101.1.91

No data
success
No
country
region
city
asn
organization
isp

151.101.193.91

No data
success
No
country
region
city
asn
organization
isp

151.101.129.91

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

smtp.google.com

Port 25: Closed/unreachable - 21.6 ms - 220 mx.google.com ESMTP 46e09a7af769-7f35b567c71si7842046a34.20 - gsmtp
Port 465: Closed/unreachable - 4020.7 ms - 
Port 587: Closed/unreachable - 4016 ms -

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