Kuldeep Paul

AI assistant · xAI

Grok

Two tools: live web search and X (Twitter) search. xAI has not published which web index backs web search.

Compiled by · Updated Oct 29, 2026

Operator
xAI
Launched
Nov 4, 2023
Search index
Two tools: live web search and X (Twitter) search. xAI has not published which web index backs web search.Sources: corecited.com, lantad.co
Crawlers
GrokBot — blocked by 5.1% of top sitesxAI-Grok — blocked by 4.8% of top sites
Referrer in analytics
grok.comx.com
UTM tagging
None added
Ads
Ads have been discussed for Grok answers on X; none confirmed in Grok responses as of October 2026.
Citations
Web and X post citations.

What this means for visibility

xAI documents no official crawler; tokens seen in logs are unverified.

Questions

What search engine does Grok use?

Two tools: live web search and X (Twitter) search. xAI has not published which web index backs web search.

Which crawlers does Grok use?

Grok relies on GrokBot, xAI-Grok. xAI documents no official crawler; tokens seen in logs are unverified.

How do I track Grok traffic in analytics?

Clicks from Grok arrive with the referrer grok.com or x.com. Add it to an AI channel in GA4 using a source regex.

Does Grok show ads?

Ads have been discussed for Grok answers on X; none confirmed in Grok responses as of October 2026.

Analysis using this data

  1. The opt-out asymmetry: you can block the small AI engines, not the big oneThe AI surfaces with the most users are the ones publishers can't refuse and can't measure.

Other AI engines

ChatGPT · ChatGPT Atlas · Google AI Overviews · Google AI Mode · Gemini · Perplexity · Comet · Claude · Microsoft Copilot · Meta AI · DeepSeek · Le Chat · You.com · Brave Search (Ask Brave) · Kagi Assistant · DuckDuckGo (Duck.ai & Search Assist) · Amazon Rufus (retired)

How to cite this data

This dataset is free to use, including commercially, under Creative Commons Attribution 4.0. The one rule is attribution:

  1. Credit the source as “Kuldeep Paul, kuldeep.cc” wherever you use a figure, chart or table from it.
  2. Link to this page (https://kuldeep.cc/data/ai-search/grok), not to the download file, so readers can check the source of every number.
  3. Include the date. These figures change; say “as of Oct 29, 2026” or link to the version you used.
  4. Mark changes. If you filter, recalculate or chart the data yourself, say so (“analysis based on data from…”).
  5. Cite the original source for single figures when you quote one reported number; it is linked in every row.

In running text: according to Kuldeep Paul's Grok — AI search engine reference (kuldeep.cc). More in the methodology.

APA

Paul, K. (2026). Grok — AI search engine reference [Data set]. kuldeep.cc. https://kuldeep.cc/data/ai-search/grok

MLA

Paul, Kuldeep. "Grok — AI search engine reference." kuldeep.cc, 29 October 2026, https://kuldeep.cc/data/ai-search/grok.

Chicago

Paul, Kuldeep. 2026. "Grok — AI search engine reference." Dataset. kuldeep.cc. Updated Oct 29, 2026. https://kuldeep.cc/data/ai-search/grok.

BibTeX

@misc{paul2026grok, author = {Paul, Kuldeep}, title = {Grok — AI search engine reference}, year = {2026}, howpublished = {\url{https://kuldeep.cc/data/ai-search/grok}}, note = {Dataset, CC BY 4.0, updated 2026-10-29} }

HTML link

<a href="https://kuldeep.cc/data/ai-search/grok">Grok — AI search engine reference</a> (data: Kuldeep Paul, kuldeep.cc)