Rattlesnakes By Mail

GoogleOther vs Perplexity-User

GoogleOther and Perplexity-User compared on 12 documented fields, from 18 claims, last verified 2026-09-15.

FieldGoogleOtherPerplexity-UserComparison
cites_sourcesnot documentedyesdifferent
honours_crawl_delaynonot_documenteddifferent
observed_fetches_robots_txtnonot documenteddifferent
observed_requested_mcp_endpointyesnot documenteddifferent
publishes_ip_listyesyessame
purpose_documentedmixeduser_fetchdifferent
reads_llms_txtnot documentednot_documenteddifferent
respects_robots_txtyesnodifferent
robots_txt_tokenGoogleOthernot documenteddifferent
separate_search_and_training_tokensnot_documentednot_documentedsame
user_agent_string_fullnot documentedMozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; Perplexity-User/1.0; +https://perplexity.ai/perplexity-user)different
verifiable_by_rdnsyesnot_documenteddifferent

Differences

FieldGoogleOther statementPerplexity-User statement
cites_sourcesnot documentedPerplexity includes a link to each page that Perplexity-User visits in the Perplexity response.
honours_crawl_delayGoogle does not support the robots.txt Crawl-delay directive for GoogleOther.Perplexity does not publish whether Perplexity-User honours the robots.txt Crawl-delay directive.
observed_fetches_robots_txtGoogleOther made 93 requests to Rattlesnakes By Mail between 2026-09-13T20:00Z and 2026-09-15T09:00Z and fetched /robots.txt on none of those requests. GoogleOther's first request to Rattlesnakes By Mail was the home page at 2026-09-14T12:03:30Z.not documented
observed_requested_mcp_endpointGoogleOther requested the /mcp endpoint of Rattlesnakes By Mail twice between 2026-09-13T20:00Z and 2026-09-15T09:00Z, at 2026-09-14T15:07:30Z and at 2026-09-14T18:27:49Z. Rattlesnakes By Mail returned status 405 to both GoogleOther requests for /mcp.not documented
purpose_documentedGoogleOther is a generic crawler that Google product teams use to fetch publicly accessible content from sites.Perplexity-User visits web pages to answer questions that users ask Perplexity.
reads_llms_txtnot documentedPerplexity does not publish whether Perplexity-User reads llms.txt files.
respects_robots_txtGoogleOther obeys robots.txt rules when crawling automatically.Perplexity-User ignores robots.txt rules because a user requests each Perplexity-User fetch.
robots_txt_tokenThe robots.txt token for GoogleOther is GoogleOther.not documented
user_agent_string_fullnot documentedPerplexity-User sends the user agent string Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; Perplexity-User/1.0; +https://perplexity.ai/perplexity-user).
verifiable_by_rdnsGoogleOther requests are verifiable by reverse DNS lookup resolving to googlebot.com, google.com, or googleusercontent.com.Perplexity does not publish a reverse-DNS verification method for Perplexity-User.

Sources