I saw comodo wall expler and verisign.com safe or not

I saw today in traffic of comodo wall
I asked a friend of mine told me VERISIGN.COM
Why Wall Comodo does not have to stop it it or that it is safe

Today also saw exploer

Does this safe too

Verisign is a certificate authority. What you see is Windows checking a certificate from Verisign to see if it is valid or may be withdrawn. That is normal traffic and nothing to worry about.

Was this outgoing traffic?

Are customer.teliacarrier.safe