Bot intelligence record

GoogleMessages

Usually allow

Use the GoogleMessages identifier to separate Google link preview, prefetch, or user-triggered rendering traffic from normal visitor requests in server logs.

Preview Preview Official Documented Confidence: High Verified: Yes robots.txt: No

User-Agent Pattern

Google
GoogleMessages

Robots.txt Snippet

Copy-ready 
No general robots.txt block is guaranteed; this is a user-triggered fetcher and may require server-side access controls.

Handling Guidance

Depends

This bot is usually safe to allow when the request source is verified and the traffic matches your site policy.

Link previews, page rendering, social unfurls, prefetching, or user-triggered content previews.

Record Details

Structured data
Operator
Google
Family
Google
Type
Preview
Purpose
Preview
Identity type
Official Documented
Confidence
High
Last verified
2026-04-01
Last checked
2026-04-30
Source type
Official

Notes

GoogleMessages is listed in the Botcrawl directory as a preview or prefetch bot from Google. The primary identifier for log review is GoogleMessages.

Identification

  • User-agent pattern: GoogleMessages
  • Family: Google
  • Type: Preview
  • Kind: Preview

Common use

Link previews, page rendering, social unfurls, prefetching, or user-triggered content previews.

Verification and handling

Verify as a Google fetcher using reverse DNS and Google's published user-triggered fetcher IP ranges.

Directory guidance marks the risk level as Safe and the blocking decision as Depends. Do not rely on the user-agent string alone because user-agent strings can be copied or spoofed.

Robots.txt handling: No.

Evidence and Source

  • Verify as a Google fetcher using reverse DNS and Google's published user-triggered fetcher IP ranges.
  • Link previews, page rendering, social unfurls, prefetching, or user-triggered content previews.

https://developers.google.com/crawling/docs/crawlers-fetchers/google-user-triggered-fetchers

Same family: Google

ProjectShield-UrlCheck Safe

ProjectShield Url Check

ProjectShield Url Check is a security scanner from Google used for security checks, malware review, or abuse prevention.

Google Google Security Security
Verified robots.txt: No Block: No Verified Bot
GoogleOther Neutral

GoogleOther

Generic crawler that may be used by various product teams for fetching publicly accessible content from sites. For example, it may be used for one-off crawls for internal research and.

Google Google Search Indexing
Verified robots.txt: Yes Block: Depends Official Documented
GoogleOther-Image Neutral

GoogleOther-Image

GoogleOther-Image is an AI crawler from Google used for AI-related crawling, retrieval, search, or assistant activity.

Google Google Ai Ai Training
Verified robots.txt: Yes Block: Depends Official Documented
GoogleOther-Video Neutral

GoogleOther-Video

GoogleOther-Video is an AI crawler from Google used for AI-related crawling, retrieval, search, or assistant activity.

Google Google Ai Ai Training
Verified robots.txt: Yes Block: Depends Official Documented

Same operator: Google

Google-CloudVertexBot Safe

Google-CloudVertexBot

Google-CloudVertexBot is an AI crawler from Google used for AI-related crawling, retrieval, search, or assistant activity.

Google Google Ai Ai Crawl
Verified robots.txt: Yes Block: Depends Official Documented
Google-CWS Neutral

Google-CWS

Google-CWS is a search crawler from Google used for search indexing, page discovery, or content rendering.

Google Google Search Search
Verified robots.txt: No Block: Depends Official Documented
Google-Display-Ads-Bot Neutral

Google-Display-Ads-Bot

Google AdSense uses a crawler called Google-Display-Ads-Bot to verify your site when you add a site to AdSense.

Google Google Search Indexing
Verified robots.txt: Yes Block: Depends Verified Bot
Google-Extended Safe

Google-Extended

Google-Extended is an AI control token from Google used for AI-related crawling, retrieval, search, or assistant activity.

Google Google Ai Ai Assistant
Verified robots.txt: Yes Block: Depends Official Documented

Similar purpose: Preview

YandexScreenshotBot Safe

YandexScreenshotBot

YandexScreenshotBot is a preview or prefetch bot from Yandex used to fetch pages for previews, unfurls, or user-triggered rendering.

Yandex Yandex Preview Preview
Verified robots.txt: No Block: Depends Official Documented
YandexMobileScreenShotBot Safe

YandexMobileScreenShotBot

YandexMobileScreenShotBot is a preview or prefetch bot from Yandex used to fetch pages for previews, unfurls, or user-triggered rendering.

Yandex Yandex Preview Preview
Verified robots.txt: No Block: Depends Official Documented
YandexFavicons Safe

YandexFavicons

YandexFavicons is a preview or prefetch bot from Yandex used to fetch pages for previews, unfurls, or user-triggered rendering.

Yandex Yandex Preview Preview
Verified robots.txt: No Block: Depends Official Documented
TikTok Safe

TikTok

TikTok is a preview or prefetch bot from ByteDance used to fetch pages for previews, unfurls, or user-triggered rendering.

ByteDance ByteDance Preview Preview
Verified robots.txt: Yes Block: Depends Verified Bot

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