No, the webpage probably doesn't allow you to ping it.
The opening line gives you an IP address, meaning the site ir probably there (because its showing up in whichever DNS).
Pinging cnn.com [64.236.24.12] with 32 bytes of dat
Request timed out.
Request timed out.
Request timed out.
Request timed out.
Ping statistics for 64.236.24.12:
Packets: Sent = 4, Received = 0, Lost = 4 (100%
Approximate round trip times in milli-seconds:
Minimum = 0ms, Maximum = 0ms, Average = 0ms
www.cnn.com is up, but they don't allow you to ping it.
If you get nothing like what is listed above, at that point the webpage is down.
Trying pinging your router, then your modem.
After that, try pinging your Default Gateway.
If you can ping all of those, everything is fine.
Riser