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 'smtp.google.com (142.250.31.27)'

Multiple A-records!

The domain 'smtp.google.com' has severals A/AAAA-records - and thereby multiple IP's to check.

click to use
64.233.180.27
click to use
142.251.16.26
click to use
142.251.111.26
click to use
142.251.111.27

Unable to connect, secure and authenticate any connection

Does the remote host support TLS/SSL connections on port 443?

Summary


Host:
smtp.google.com, 142.250.31.27, port 443


Protocols:
Failed
 Unable to connect, secure and authenticate any connection


Protocol support



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

Verification:
Unable to connect, secure and authenticate any connection
 
Does the remote host support TLS/SSL connections on port 443?

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=smtp.google.com copy try it
 

Log

040+040
  • Host 'smtp.google.com' resolved in 39ms
040+000
  • INFMultiple A-records!
    Domain 'smtp.google.com' has several A-records, and thereby multiple IPs to check. IP 142.250.31.27 will be used.
040+000
  • Check protocols
041+000
  • Start SSL 2.0 protocol check, smtp.google.com (142.250.31.27), port 443
041+000
  • Start TLS 1.3 protocol check, smtp.google.com (142.250.31.27), port 443
041+000
  • Start TLS 1.0 protocol check, smtp.google.com (142.250.31.27), port 443
041+000
  • Start SSL 3.0 protocol check, smtp.google.com (142.250.31.27), port 443
041+000
  • Start TLS 1.2 protocol check, smtp.google.com (142.250.31.27), port 443
041+000
  • Start TLS 1.1 protocol check, smtp.google.com (142.250.31.27), port 443
5.034+4.993
  • Protocol check of TLS 1.2 done in 4.992ms - failed
    Unable to connect to host 'smtp.google.com' (142.250.31.27) on port 443.
5.034+4.993
  • Protocol check of TLS 1.3 done in 4.993ms - failed
    Unable to connect to host 'smtp.google.com' (142.250.31.27) on port 443.
5.034+4.993
  • Protocol check of SSL 3.0 done in 4.993ms - failed
    Unable to connect to host 'smtp.google.com' (142.250.31.27) on port 443.
5.034+4.993
  • Protocol check of TLS 1.1 done in 4.992ms - failed
    Unable to connect to host 'smtp.google.com' (142.250.31.27) on port 443.
5.034+4.993
  • Protocol check of SSL 2.0 done in 4.993ms - failed
    Unable to connect to host 'smtp.google.com' (142.250.31.27) on port 443.
5.034+4.993
  • Protocol check of TLS 1.0 done in 4.993ms - failed
    Unable to connect to host 'smtp.google.com' (142.250.31.27) on port 443.
5.034+000
  • ERRUnable to connect, secure and authenticate any connection
    Does the remote host support TLS/SSL connections on port 443?
5.034+000
  • Done