SeznamBot

Fully verifiable

Seznam's web crawler, fetching pages for the Seznam.cz search engine used primarily in the Czech Republic. Seznam publishes the full list of addresses the crawler uses as JSON, and documents that every SeznamBot address carries a fulltextrobot-*.seznam.cz reverse-DNS record.

Operated by Seznam.cz · Official documentation

User agents

Patterns this directory matches, with real observed strings.

regexSeznamBot/\d
observedMozilla/5.0 (compatible; SeznamBot/4.0; +https://o-seznam.cz/napoveda/vyhledavani/en/seznambot-crawler/)
observedMozilla/5.0 (compatible; SeznamBot/3.2; +http://napoveda.seznam.cz/en/seznambot-intro/)

How to verify

Fetch the official IP range feed

curl -s https://search.seznam.cz/ipranges/seznambot.json

Reverse-DNS check a client IP

dig -x <client-ip> +short   # expect a hostname matching *.seznam.cz

Reverse-DNS suffixes: *.seznam.cz

IP ranges (92)

Refreshed daily from the operator's feed. Also available as /data/ips/seznambot.ips and /data/bots/seznambot.json.

2a02:598:64:8a00::302:340/123
2a02:598:64:8a00::302:360/123
2a02:598:64:8a00::302:380/123
2a02:598:64:8a00::302:3a0/123
2a02:598:64:8a00::302:3c0/123
2a02:598:64:8a00::302:3e0/123
2a02:598:64:8a00::302:500/123
2a02:598:64:8a00::302:520/123
2a02:598:64:8a00::302:540/123
2a02:598:64:8a00::302:560/123
2a02:598:64:8a00::302:580/123
2a02:598:64:8a00::302:5a0/123
2a02:598:64:8a00::302:5c0/123
2a02:598:64:8a00::302:5e0/123
2a02:598:64:8a00::302:600/123
2a02:598:64:8a00::302:620/123
2a02:598:64:8a00::302:640/123
2a02:598:64:8a00::302:660/123
2a02:598:64:8a00::302:680/123
2a02:598:64:8a00::302:6a0/123
2a02:598:64:8a00::302:6c0/123
2a02:598:64:8a00::302:6e0/123
2a02:598:64:8a00::f00:0/123
2a02:598:96:8a00::1200:100/123
2a02:598:96:8a00::b00:100/123
2a02:598:96:8a00::b00:120/123
2a02:598:96:8a00::b00:140/123
2a02:598:96:8a00::b00:160/123
2a02:598:96:8a00::b00:180/123
2a02:598:96:8a00::b00:1a0/123
2a02:598:96:8a00::b00:1c0/123
2a02:598:96:8a00::b00:1e0/123
2a02:598:96:8a00::b00:200/123
2a02:598:96:8a00::b00:220/123
2a02:598:96:8a00::b00:240/123
2a02:598:96:8a00::b00:260/123
2a02:598:96:8a00::b00:280/123
2a02:598:96:8a00::b00:2a0/123
2a02:598:96:8a00::b00:2c0/123
2a02:598:96:8a00::b00:2e0/123
2a02:598:96:8a00::b00:300/123
2a02:598:96:8a00::b00:320/123
2a02:598:96:8a00::b00:80/123
2a02:598:96:8a00::b00:a0/123
2a02:598:96:8a00::b00:c0/123
2a02:598:96:8a00::b00:e0/123
77.75.72.26/32
77.75.73.26/32
77.75.76.160/32
77.75.76.161/32
77.75.76.162/32
77.75.76.163/32
77.75.76.164/32
77.75.76.165/32
77.75.76.166/32
77.75.76.167/32
77.75.76.168/32
77.75.76.169/32
77.75.76.170/32
77.75.76.171/32
77.75.76.172/32
77.75.77.101/32
77.75.77.109/32
77.75.77.17/32
77.75.77.32/32
77.75.77.36/32
77.75.77.54/32
77.75.77.62/32
77.75.77.72/32
77.75.77.95/32
77.75.78.160/32
77.75.78.161/32
77.75.78.162/32
77.75.78.163/32
77.75.78.164/32
77.75.78.165/32
77.75.78.166/32
77.75.78.167/32
77.75.78.168/32
77.75.78.169/32
77.75.78.170/32
77.75.78.171/32
77.75.78.172/32
77.75.79.101/32
77.75.79.109/32
77.75.79.17/32
77.75.79.32/32
77.75.79.36/32
77.75.79.54/32
77.75.79.62/32
77.75.79.72/32
77.75.79.95/32

Good Bot Practices scorecard

Identifies honestly
Stable UA token documented (1 pattern)
Verifiable
Fully verifiable
Respects robots.txt
Honors robots.txt (token: SeznamBot)
Behaves
Crawl-rate behavior is operator-declared; not machine-verifiable from this dataset
Reachable operator
Operator and documentation published

Measured against the Good Bot Practices.