January 20, 2021 at 7:18:46 AM UTC
VERIFY
Anomaly
HTTP blocking (HTTP requests failed)
Websites
Websites
Runtime: 3s
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On January 20, 2021 at 7:18:46 AM UTC, http://ultrasurf.us/ presented signs of HTTP blocking (HTTP requests failed) on AS37063 in Uganda. This might mean that http://ultrasurf.us/ was blocked, but false positives can occur. Please explore the network measurement data below.

Failures

HTTP Experiment
eof_error
DNS Experiment
null
Control
null

DNS Queries

Resolver:
196.6.220.13
Query:
IN A ultrasurf.us
Engine:
system
Name
Class
TTL
Type
DATA
Answer IP Info
@
IN
A
104.21.234.100
AS13335 (Cloudflare, Inc.)
@
IN
A
104.21.234.101
AS13335 (Cloudflare, Inc.)
Query:
IN AAAA ultrasurf.us
Engine:
system
Name
Class
TTL
Type
DATA
Answer IP Info
@
IN
AAAA
2606:4700:3038::6815:ea65
AS13335 (Cloudflare, Inc.)
@
IN
AAAA
2606:4700:3038::6815:ea64
AS13335 (Cloudflare, Inc.)

TCP Connections

2606:4700:3038::6815:ea64:80: failed (unknown_failure: dial tcp [scrubbed]: connect: network is unreachable)
2606:4700:3038::6815:ea65:80: failed (unknown_failure: dial tcp [scrubbed]: connect: network is unreachable)
104.21.234.101:80: succeeded
104.21.234.100:80: succeeded

HTTP Requests

No data
URL
GET http://ultrasurf.us/
Response Headers
Cache-Control:
no-cache
Connection:
close
Content-Length:
0
Location:
http://control.defenddefenders.local:4080/nonauth/deny.cs?dest=aHR0cDovL3VsdHJhc3VyZi51cy8%3D&host=MTkyLjE2OC4xLjE0NyA3NWZiZGNmNGYyNTZlZjM4ZDBmMTE0NTA1MTVkMjBjMA%3D%3D&ID=OCA0&DBL=MTIg&DBLWF=MQ%3D%3D&guest=MA%3D%3D
Pragma:
no-cache
Response Body

Empty body

Resolver

Resolver ASN
AS37578
Resolver IP
196.6.220.13
Resolver Network Name
Telecommunication Sevice Providers Association of Kenya - TESPOK
Measurement UID
20210120074918.569503_UG_webconnectivity_2141f9dd549b5ee6
Report ID
20210120T061009Z_webconnectivity_UG_37063_n1_lMkQ9UoOmhwAnrbk
Platform
linux
Software Name
ooniprobe-cli (3.1.0)
Measurement Engine
ooniprobe-engine (0.21.0)

Raw Measurement Data

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