TLS/SSL certificate check


Port to connect on:
Secure HTTP / HTTPS - port 443 Secured SMTP - port 465 Secured IMAP - port 993 Secured POP3 - port 995

TLS/SSL check of 'peering.cz (2a01:28:eeef::1)'

Multiple A-records!

The domain 'peering.cz' has severals A/AAAA-records - and thereby multiple IP's to check.

click to use
46.234.105.162

Summary


Host:
peering.cz, 2a01:28:eeef::1, port 443


Protocols:
All good
 3 supported protocols: TLS 1.2, TLS 1.1, TLS 1.0


Certificate:
All good
 Certificate 'peering.cz' is verified okay. Issued by 'R3'. Expires 12-07-2024.

Protocol support



Protocol support:
TLS 1.3
No support
TLS 1.2
Supported
TLS 1.1
Supported
TLS 1.0
Supported
SSL 3.0
No support
SSL 2.0
No support

Verification:
TLS 1.2 is supported
 
It is noticable, that TLS 1.3 is not supported. Please consider disableing TLS 1.1, 1.0, SSL3 and SSL2 - as of March 2021, TLS 1.1 and 1.0 was oficially depricated, and as of June 2015 SSL3 and SSL2 was depricated. Use of either protocol is not recomended

Chain of certificates

3 of 3 - End-Entity
peering.cz

Certificat:
peering.cz

Issued by:
R3, Let's Encrypt, US

Valid:
From 13-04-2024 to 12-07-2024

Verification:
Certificate is verified okay

SAN's:
peering.cz
peering.sk
www.peering.cz
www.peering.sk

Key:
RSA, 2048 bit
Signature algorithm:
sha256RSA

Serial:
03A7FD0BB15FD76B8F45B5B77736F8F8FDEE

PEM format:
Click to see certificate as PEM (modal)

2 of 3 - Intermediate
R3

Certificat:
R3, Let's Encrypt, US

Issued by:
ISRG Root X1, Internet Security Research Group, US

Valid:
From 03-09-2020 to 15-09-2025

Verification:
Certificate is verified okay

Key:
RSA, 2048 bit
Signature algorithm:
sha256RSA

Serial:
00912B084ACF0C18A753F6D62E25A75F5A

PEM format:
Click to see certificate as PEM (modal)

1 of 3 - Root certificate
ISRG Root X1

Certificat:
ISRG Root X1, Internet Security Research Group, US

Issued by:
ISRG Root X1, Internet Security Research Group, US

Valid:
From 04-06-2015 to 04-06-2035

Verification:
Certificate is verified okay

Key:
RSA, 4096 bit
Signature algorithm:
sha256RSA

Serial:
008210CFB0D240E3594463E0BB63828B00

PEM format:
Click to see certificate as PEM (modal)

Root Store trust

Root Certificat:
ISRG Root X1
Issued by:
Internet Security Research Group

Root Store trust:
The root certificte is trustet by ALL major trusted root certificate stores

Microsoft:
Root Certificate is fully trusted by Microsoft (Windows)

Apple:
Root Certificate is fully is trusted by Apple (iOS, iPadOS, macOS)

Android:
Root Certificate is fully is trusted by Android

API

You may perform this lookup using the API and get the results as easy-to-parse JSON data.

Read more on the API at https://iamroot.tech/about/api (regarding authentication and rate limits, among other things), or give it a go right away using the 'try it' button.

 
GET
 https://iamroot.tech/ssl-certificate-check/api/?host=peering.cz copy try it
 

Log

196+196
  • Host 'peering.cz' resolved in 195ms
196+000
  • INFMultiple A-records!
    Domain 'peering.cz' has several A-records, and thereby multiple IPs to check. IP 2a01:28:eeef::1 will be used.
196+000
  • Check protocols
196+000
  • Start SSL 2.0 protocol check, peering.cz (2a01:28:eeef::1), port 443
196+000
  • Start TLS 1.2 protocol check, peering.cz (2a01:28:eeef::1), port 443
196+000
  • Start TLS 1.3 protocol check, peering.cz (2a01:28:eeef::1), port 443
196+000
  • Start TLS 1.1 protocol check, peering.cz (2a01:28:eeef::1), port 443
196+000
  • Start TLS 1.0 protocol check, peering.cz (2a01:28:eeef::1), port 443
197+000
  • Start SSL 3.0 protocol check, peering.cz (2a01:28:eeef::1), port 443
321+126
  • Protocol check of SSL 2.0 done in 125ms - failed
    Unable to authenticate connection using SSL 2.0
321+125
  • Protocol check of SSL 3.0 done in 124ms - failed
    Unable to authenticate connection using SSL 3.0
445+249
  • Protocol check of TLS 1.3 done in 248ms - failed
    Unable to authenticate connection using TLS 1.3
574+378
  • Protocol check of TLS 1.0 done in 377ms - all good
574+378
  • Protocol check of TLS 1.2 done in 378ms - all good
574+378
  • Protocol check of TLS 1.1 done in 377ms - all good
577+255
  • TLS 1.2 is supported
    It is noticable, that TLS 1.3 is not supported. Please consider disableing TLS 1.1, 1.0, SSL3 and SSL2 - as of March 2021, TLS 1.1 and 1.0 was oficially depricated, and as of June 2015 SSL3 and SSL2 was depricated. Use of either protocol is not recomended
577+000
  • Done
577+000
  • Check certificate
577+000
  • Load and verify chain of certificates
684+107
  • Full chain of certificates has been loaded and verified in 107ms.
684+000
  • End-Entity certificate verification success
    Certificat 'peering.cz' SUCCEDED the verification.
684+000
  • Host 'peering.cz' is matching Subject/SAN 'peering.cz' of certificate. All good!
684+000
  • Intermediate certificate verification success
    Certificat 'R3' SUCCEDED the verification.
684+000
  • Root certificate verification success
    Certificat 'ISRG Root X1' SUCCEDED the verification.
684+000
  • Check root store status of root certificate
687+002
  • Trustet by all major trusted root certificate stores
    The root certificte is trustet by ALL major trusted root certificate stores
687+000
  • Done
687+000
  • Done
687+000
  • Done
New features inbound 🚀
Within a couple of weeks, I'll launch a couple of new awesome features. Signup for the newsletter to stay updated, and get early access as a beta tester.

Signup using Google, Microsoft or Facebook .