Google's transparency report site and Akamai data both show a steep, steep decline in Syrian internet activity happening Tuesday afternoon EDT
Umbrella Security labs, which reported a countrywide internet blackout in Syria in November 2012, also found evidence that Syria has effectively disappeared from the internet today
At around 18:45 UTC OpenDNS resolvers saw a significant drop in traffic from Syria. On closer inspection it seems Syria has largely disappeared from the Internet.
The graph below shows DNS traffic from and to Syria. Although Twitter remains relatively silent, the drop in both inbound and outbound traffic from Syria is clearly visible. The small amount of outbound traffic depicted by the chart indicates our DNS servers trying to reach DNS servers in Syria.
Arabic Al Aan reporter Jenan Moussan is reporting that activists are telling her internet has been out for hours
Most recent tweets geotagged from Damascus are from before 2:00 p.m. EDT (Source: Geofeedia)
UPDATE (9:30 AM EDT): The Internet is still down in Syria for a second day
UPDATE (10:30 AM EDT): Looks like Syria is back online