Country
Czechia
Aggregated network and security signals for Czechia, sourced from BGP feeds, CT logs, our scan layer and honeypot network.
ASNs observed
701
last 30 d
Open IPs
224,662
last 90 d
Hosting share
15.8%
of open IPs
Threat hits
58
IOC matches
Top ASNs
| ASN | Name | Open IPs |
|---|---|---|
| AS2852 | CESNET | 9,835 |
| AS16019 | Vodafone Czech Republic | 7,188 |
| AS50833 | Fiber Telecom Czechia | 6,497 |
| AS13036 | T-Mobile CZ AS13036 | 5,029 |
| AS5610 | O2 Czech Republic | 4,232 |
| AS39392 | SH.cz | 3,752 |
| AS24971 | MasterDC | 1,853 |
| AS25248 | Radiokomunikace | 1,829 |
| AS44489 | STARNET, s.r.o. | 1,822 |
| AS29208 | Quantcom | 1,694 |
| AS24806 | INTERNET CZ | 1,577 |
| AS42908 | Nordic Telecom | 1,039 |
| AS15685 | Casablanca INT a.s. | 827 |
| AS197019 | WEDOS Internet | 823 |
| AS16246 | Nej.cz s.r.o. | 786 |
| AS43541 | VSHosting s.r.o. | 731 |
| AS21430 | WIA | 719 |
| AS210976 | — | 699 |
| AS30764 | PODA | 640 |
| AS25512 | CD-Telematika a.s. | 619 |
Top Hosting Providers
| ASN | Name | Open IPs |
|---|---|---|
| AS2852 | CESNET | 9,835 |
| AS50833 | Fiber Telecom Czechia | 6,497 |
| AS13036 | T-Mobile CZ AS13036 | 5,029 |
| AS39392 | SH.cz | 3,752 |
| AS24971 | MasterDC | 1,853 |
| AS25248 | Radiokomunikace | 1,829 |
| AS29208 | Quantcom | 1,694 |
| AS15685 | Casablanca INT a.s. | 827 |
| AS197019 | WEDOS Internet | 823 |
| AS43541 | VSHosting s.r.o. | 731 |
| AS25512 | CD-Telematika a.s. | 619 |
| AS28725 | CETIN | 558 |
| AS174 | Cogent Communications, Inc. | 518 |
| AS20940 | Akamai Technologies | 517 |
| AS29134 | Webglobe | 437 |
Top open ports
Tech-Stack Distribution
| Technology | Hosts |
|---|---|
| jQuery | 952 |
| Bootstrap | 308 |
| jQuery UI | 142 |
| Synology DiskStation | 125 |
| Vue.js | 102 |
| jsDelivr | 100 |
| jQuery Migrate | 88 |
| ExtJS | 86 |
| crypto-js | 76 |
| RequireJS | 65 |
| PHP | 59 |
| Prototype | 59 |
| Google Analytics | 58 |
| Popper | 58 |
| OpenLayers | 55 |
Top Server headers
| Server | Hosts |
|---|---|
| nginx | 2,019 |
| Apache | 1,214 |
| Microsoft-IIS/10.0 | 431 |
| AkamaiGHost | 415 |
| nginx/1.24.0 (Ubuntu) | 306 |
| Microsoft-HTTPAPI/2.0 | 298 |
| lighttpd/1.4.54 | 251 |
| nginx/1.18.0 (Ubuntu) | 224 |
| lighttpd/1.4.39 | 208 |
| Webs | 154 |
| nginx/1.22.1 | 147 |
| openresty | 137 |
| Apache/2.4.58 (Ubuntu) | 135 |
| Apache/2.4.67 (Debian) | 130 |
| gws | 118 |
Top Attack Sources
| Feed | Category | Matched IPs |
|---|---|---|
| tor-exit | anonymizer | 38 |
| firehol-l1 | abuse | 11 |
| spamhaus-drop | spam | 9 |