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 'alt4.aspmx.l.google.com (142.250.153.26)'

Multiple A-records!

The domain 'alt4.aspmx.l.google.com' has severals A/AAAA-records - and thereby multiple IP's to check.

Unable to connect, secure and authenticate any connection

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

Summary


Host:
alt4.aspmx.l.google.com, 142.250.153.26, 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=alt4.aspmx.l.google.com copy try it
 

Log

044+044
  • Host 'alt4.aspmx.l.google.com' resolved in 42ms
044+000
  • INFMultiple A-records!
    Domain 'alt4.aspmx.l.google.com' has several A-records, and thereby multiple IPs to check. IP 142.250.153.26 will be used.
044+000
  • Check protocols
044+000
  • Start TLS 1.3 protocol check, alt4.aspmx.l.google.com (142.250.153.26), port 443
044+000
  • Start SSL 2.0 protocol check, alt4.aspmx.l.google.com (142.250.153.26), port 443
044+000
  • Start TLS 1.2 protocol check, alt4.aspmx.l.google.com (142.250.153.26), port 443
044+000
  • Start TLS 1.1 protocol check, alt4.aspmx.l.google.com (142.250.153.26), port 443
044+000
  • Start TLS 1.0 protocol check, alt4.aspmx.l.google.com (142.250.153.26), port 443
044+000
  • Start SSL 3.0 protocol check, alt4.aspmx.l.google.com (142.250.153.26), port 443
5.035+4.991
  • Protocol check of SSL 2.0 done in 4.991ms - failed
    Unable to connect to host 'alt4.aspmx.l.google.com' (142.250.153.26) on port 443.
5.035+4.991
  • Protocol check of TLS 1.3 done in 4.991ms - failed
    Unable to connect to host 'alt4.aspmx.l.google.com' (142.250.153.26) on port 443.
5.035+4.991
  • Protocol check of TLS 1.2 done in 4.991ms - failed
    Unable to connect to host 'alt4.aspmx.l.google.com' (142.250.153.26) on port 443.
5.035+4.991
  • Protocol check of TLS 1.0 done in 4.991ms - failed
    Unable to connect to host 'alt4.aspmx.l.google.com' (142.250.153.26) on port 443.
5.036+4.992
  • Protocol check of TLS 1.1 done in 4.991ms - failed
    Unable to connect to host 'alt4.aspmx.l.google.com' (142.250.153.26) on port 443.
5.036+4.991
  • Protocol check of SSL 3.0 done in 4.991ms - failed
    Unable to connect to host 'alt4.aspmx.l.google.com' (142.250.153.26) on port 443.
5.037+001
  • ERRUnable to connect, secure and authenticate any connection
    Does the remote host support TLS/SSL connections on port 443?
5.037+000
  • Done