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Total

100

DNS

Email

Security

Network

100

Availability

Domainspring.io

IPv42

IPv62

MX records3

StatusActive

Domain technical report

Spring | Home

spring.io

Level up your Java code and explore what Spring can do for you.

Generated: 2026-08-09T02:07:22-05:00 · Cached result

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IPv42

IPv62

MX3

NS2

DiagnosticsMain findings and recommendations

✓

IPv4 (A)30 / 30 pts · Dns

2 IPv4 address(es) detected.

✓

IPv6 (AAAA)10 / 10 pts · Dns

2 IPv6 address(es) detected.

✓

Name server redundancy20 / 20 pts · Dns

2 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

3 MX record(s).

✓

SPF25 / 25 pts · Mail

SPF policy published.

✓

DMARC25 / 25 pts · Mail

DMARC policy published.

DKIM0 / 20 pts · Mail

No tested DKIM selector responded.

MTA-STS0 / 5 pts · Mail

Mail transport policy.

TLS-RPT0 / 5 pts · Mail

TLS reporting policy.

✓

Valid TLS certificate55 / 55 pts · Security

230 day(s) remaining.

✓

Certificate lifetime10 / 10 pts · Security

Full points require at least 30 days remaining.

HTTP security headers16 / 35 pts · Security

4 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

2 record(s)

172.64.145.101
104.18.42.155

AAAA

2 record(s)

2606:4700:4409::ac40:9165
2a06:98c1:3100::6812:2a9b

CNAME

0 record(s)

—

Not configured

MX

3 record(s)

13 isaac.mx.cloudflare.net.
80 amir.mx.cloudflare.net.
90 linda.mx.cloudflare.net.

TXT

12 record(s)

"atlassian-domain-verification=axGNi8XOxPg2qasalLkg8DO6ODN7aQn9/aoDhzplZ/9Z4Oxkyei72gvYJu6HR6yn"
"lrcgkxfxkbx4r60sz8kxghxpv8n04mhs"
"google-site-verification=YSdDbpdDobwxE01DfU6-38UABqxNWafTc6vk-Df_mnk"
"status-page-domain-verification=64j92k6cfs22"
"_8bf4m05zgllzh6kpmbdw29k8s51faur"
"CFE5-A8BB-39C8-811C-275E-359B-7D50-A9A2"
"MS=ms74802145"
"_ng92d6yb9n8jfhfjkgaixcyflt73g28"
"google-site-verification=Z9wK7ueF-FuImFwV628x5gnY-FfL7jNaIVnGcMobeyY"
"google-site-verification=c0oGXYGH7hFxErftte8bCH7IQmolmHNq9HUx4rqu8YI"
"v=spf1 include:_spf.mx.cloudflare.net -all"
"e601f6cfb729414088b22175584eb026"

NS

2 record(s)

theo.ns.cloudflare.com.
mary.ns.cloudflare.com.

SOA

1 record(s)

mary.ns.cloudflare.com. dns.cloudflare.com. 2411282013 10000 2400 604800 1800

CAA

13 record(s)

0 issuewild "comodoca.com"
0 issuewild "pki.goog; cansignhttpexchanges=yes"
0 issue "ssl.com"
0 issue "comodoca.com"
0 issuewild "letsencrypt.org"
0 issue "pki.goog; cansignhttpexchanges=yes"
0 issue "digicert.com; cansignhttpexchanges=yes"
0 issue "sectigo.com"
0 issuewild "sectigo.com"
0 iodef "mailto:spring-administration.pdl@broadcom.com"
0 issue "letsencrypt.org"
0 issuewild "ssl.com"
0 issuewild "digicert.com; cansignhttpexchanges=yes"

DS

1 record(s)

2371 13 2 315FB37CDCF7C543996E0C9045129C8A9867FFCC7EC98EF69A4FAA8E 83EE2739

DNSKEY

2 record(s)

256 3 13 oJMRESz5E4gYzS/q6XDrvU1qMPYIjCWzJaOau8XNEZeqCYKD5ar0IRd8 KqXXFJkqmVfRvMGPmM1x8fGAa2XhSA==
257 3 13 mdsswUyr3DPW132mOi8V9xESWE8jTo0dxCjjnopKl+GqJxpVXckHAeF+ KkxLbxILfDLUT0rAK9iUzy1L53eKGQ==

RRSIG

5 record(s)

DNSKEY 13 2 3600 20261002043315 20260802043315 2371 spring.io. XmXdQtW3olbZ7WbS35RZWigyXHVBANZ1CO0StZImykZXJqIvbQl0mONy zYKMIeiChl0j7UvaxoTN7Prqddx9Gg==
NS 13 2 86400 20260810080718 20260808060718 34505 spring.io. Z19ibjnoZc8Adoww0xBPE7LASrNUudkmgz67Bjgd8VREh0gxHI48tG1d B/1clphTNd337VbhCjSSRqVlfQVTkg==
TXT 13 2 300 20260810080718 20260808060718 34505 spring.io. Zbm219sVZ1t/aZ+q48BzQEhgdmsXYiZi2z6Z9uB4LP+hZ9HCykU6WrMH y1fVxHbIhXrfp5p1peEO0kxyxUcuEA==
AAAA 13 2 300 20260810080718 20260808060718 34505 spring.io. w5aK9I1c5mG4ob0Hw9l5NVmTFbHg2LoGNZBYBwXq15/Fr4rW3EPIVHmC qD+cVPbXnru1ZLaaDhKLsZRb7uMcWg==
DS 8 2 3600 20260822160612 20260801150612 46863 io. JGWUCmQohFmOp27tkqQJoxkGY/efL8DgjuieglDM16fFu8bO4p1Wo2Pl 7QQxhZGcY116PFHQ0HXzNbXYTvIPjaj53jau4UapYcq88shjrtJ2SuuO XaeSJP1ZAD5rT95Vcbx46rbkOhjg3X7nn5yTdDgMK6+gKDuWxW5w6q/4 RFU=

NSEC

1 record(s)

\000.spring.io. A NS SOA PTR HINFO MX TXT AAAA LOC SRV NAPTR CERT SSHFP RRSIG NSEC DNSKEY TLSA SMIMEA HIP CDS CDNSKEY OPENPGPKEY SVCB HTTPS URI 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.mx.cloudflare.net -all

DMARC

Configured

v=DMARC1;  p=reject; fo=1; sp=reject; adkim=s; aspf=s; rua=mailto:7d99e11365e441b6859ed130b8db7d5d@dmarc-reports.cloudflare.net

DKIM

Not found

—

Not configured

Analyzed webpageMetadata and HTTP response

Title and description

Extracted

Title

Spring | Home

Description

Level up your Java code and explore what Spring can do for you.

Final URL

https://spring.io/

HTTP status

200

HTTP

Status

HTTP/2 200

Final URL

https://spring.io/

Version

Server

cloudflare

X-Powered-By

SSL and HTTP securityCertificate, protocol and security headers

SSL certificate

Available

Yes

Issuer

DigiCert Inc

*.spring.io

Valid from

2026-02-23T18:00:00-06:00

Valid until

2027-03-27T18:59:59-05:00

Days remaining

230

Protocol

TLSv1.3

Cipher

TLS_AES_256_GCM_SHA384

Security headers

4 active

✓

HSTSImplemented

—

Content Security PolicyNot detected

✓

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

104.18.42.155, 172.64.145.101

59,48 ms

Cloudflare

1.1.1.1

104.18.42.155, 172.64.145.101

26,51 ms

Quad9

9.9.9.9

104.18.42.155, 172.64.145.101

76,74 ms

OpenDNS

208.67.222.222

104.18.42.155, 172.64.145.101

36,85 ms

AdGuard

94.140.14.14

104.18.42.155, 172.64.145.101

51,31 ms

IP, geolocation and ASNAssociated network information

172.64.145.101

No data

success

country

region

city

asn

organization

isp

104.18.42.155

No data

success

country

region

city

asn

organization

isp

Visitor information

Visitor

216.73.217.62

reverse

country

country_code

region

city

latitude

longitude

isp

organization

asn

timezone

browser

Other

language

user_agent

Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)

is_bot

Yes

cloudflare

SMTPEmail port connectivity

isaac.mx.cloudflare.net

Port 25: Closed/unreachable - 7.8 ms - 
Port 465: Closed/unreachable - 10.7 ms - 
Port 587: Closed/unreachable - 7.9 ms -

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