Site No Load

Going to sundry web sites.'
Black screen often comes up, get "dog chasing tail" animated circle , response time to access site often several minutes, if at all. Other times no problems
Other sites get fairly good unfettered access.
Problem manifested few months back, then self corrected , now reoccouring

Info:
OP: Win 7
ISP: AT&T /UVerse
Computer: Generic

Thanks,
Skysarge

 

23, 1.9, & 21 Ping Test, #1

22.97, 19 Test # 2, (No Ping listed)

 

Ran speed tests, results are:

Test, #1
23, 1.9, & 21 Ping

Test # 2
22.97, 19 , (No Ping listed)

Test #3
Download Speed https://www.att.com/media/att/2011/global/btn/btn-help-icon.gif 23.05 Mbps (2880.8 KB/sec transfer rate)
Upload Speed https://www.att.com/media/att/2011/global/btn/btn-help-icon.gif 1.94 Mbps (242.1 KB/sec transfer rate)

• Latency https://www.att.com/media/att/2011/global/btn/btn-help-icon.gif 21 ms
• Jitter https://www.att.com/media/att/2011/global/btn/btn-help-icon.gif 1 ms

Anyone know where I can find a translation for these, perhaps a comparison chart? Preferably without having to install some site's program

 

"With those speeds, give me one link to a site that will not load."

I would prefer not to, due to the nature of the sites

 

Have you tried using Firefox with Ad blockers.