Anomaly
https://dartcenter.org/
DNS tampering
Websites
Runtime: 731ms
On October 25, 2025, 06:59 PM UTC, https://dartcenter.org/ presented signs of DNS tampering on AS13036 in Czechia.
This might mean that https://dartcenter.org/ was blocked, but false positives can occur.
Please explore the network measurement data below.
Failures
HTTP Experiment
null
DNS Experiment
android_dns_cache_no_data
Control
null
DNS Queries
Resolver:
93.153.117.52
Query:
IN A dartcenter.org
Engine:
system
android_dns_cache_no_data
Query:
IN AAAA dartcenter.org
Engine:
system
android_dns_cache_no_data
TCP Connections
No data.
HTTP Requests
No Data
Resolver
Resolver ASN
AS13036
Resolver IP
93.153.117.52
Resolver Network Name
T-Mobile Czech Republic a.s.
Report ID
20251025T185514Z_webconnectivity_CZ_13036_n4_t2z8sfzC2QOKWv27
Platform
android
Software Name
ooniprobe-android-unattended (5.0.6)
Measurement Engine
ooniprobe-engine (3.25.0)