The 50 Most-Cited Websites in Grok (June 2026)

Grok is xAI’s assistant, built directly into X, and that distribution gives it real influence.

According to SpaceX’s May 2026 S-1 filing, 117 million people use Grok’s features every month, out of X’s 550 million monthly active users. That makes it one of the most-used AI assistants on the planet, and a growing influence on how people discover information. So the sources Grok leans on are actively shaping what hundreds of millions of users read.

To see which sites those are, we tracked every domain Grok cited across a broad set of US queries, then ranked them by mention share — each domain’s slice of all the citations that the top sources collectively earn. The leader is www.reddit.com, capturing 16.3% of citations.

1	www.reddit.com	16.3%	–	1,847,896	95
2	www.youtube.com	15.1%	–	1,959,325	99
3	www.facebook.com	13.9%	–	1,705,362	100
4	www.instagram.com	5.9%	–	568,231	100
5	www.quora.com	5.5%	–	307,557	92
6	www.amazon.com	5.0%	▲ 1	397,706	96
7	www.tiktok.com	4.8%	▼ 1	479,282	97
8	en.wikipedia.org	3.4%	–	113,028	97
9	www.ebay.com	1.5%	–	145,824	93
10	www.walmart.com	1.5%	–	117,837	92
11	www.pinterest.com	1.4%	–	146,875	97
12	x.com	1.4%	▲ 15	142,842	97
13	www.nytimes.com	1.2%	–	12,947	94
14	www.forbes.com	1.1%	▼ 2	21,932	94
15	www.justanswer.com	1.1%	–	69,286	76
16	pmc.ncbi.nlm.nih.gov	1.1%	▼ 2	51,613	95
17	www.consumerreports.org	1.1%	▼ 1	25,049	90
18	www.yelp.com	1.0%	–	96,634	94
19	www.linkedin.com	0.9%	▼ 2	62,510	99
20	www.tripadvisor.com	0.9%	▼ 1	102,776	93
21	www.homedepot.com	0.8%	–	49,966	90
22	www.trustpilot.com	0.8%	▲ 3	36,742	94
23	www.kbb.com	0.8%	–	56,891	89
24	www.healthline.com	0.7%	▼ 2	10,465	92
25	www.edmunds.com	0.7%	▲ 1	47,862	86
26	medium.com	0.7%	▼ 6	35,011	94
27	shop.tiktok.com	0.7%	▲ 5	44,290	97
28	www.caranddriver.com	0.7%	▲ 2	12,116	86
29	www.cnet.com	0.6%	▼ 5	9,305	91
30	www.target.com	0.6%	▲ 1	39,189	91
31	finance.yahoo.com	0.6%	▼ 2	27,204	94
32	www.bestbuy.com	0.6%	▲ 2	31,081	89
33	www.nerdwallet.com	0.6%	▲ 2	4,818	90
34	www.etsy.com	0.5%	▼ 1	51,069	94
35	www.jdpower.com	0.5%	▲ 3	33,692	87
36	www.cars.com	0.5%	▲ 4	30,254	86
37	www.webmd.com	0.5%	▲ 2	6,339	92
38	www.yahoo.com	0.5%	▼ 10	26,134	94
39	www.thespruce.com	0.5%	▼ 3	6,345	90
40	www.businessinsider.com	0.5%	▼ 3	9,685	92
41	www.sciencedirect.com	0.4%	–	24,303	94
42	www.pcmag.com	0.4%	–	7,063	91
43	www.goodrx.com	0.4%	▲ 4	64,579	85
44	www.lemon8-app.com	0.4%	▲ 4	26,823	80
45	www.lowes.com	0.4%	–	18,657	88
46	play.google.com	0.4%	NEW	19,446	99
47	www.carfax.com	0.4%	NEW	14,559	90
48	pubmed.ncbi.nlm.nih.gov	0.4%	▼ 5	19,180	95
49	www.cnn.com	0.3%	▼ 3	4,863	93
50	www.houzz.com	0.3%	▼ 1	18,277	92

The numbers come from Ahrefs’ Brand Radar, which tracks the responses AI platforms give to a large, search-backed set of real user queries. For this article, we looked at every domain Grok cited across over 1.9 million US queries spanning all topics, then counted how often each domain appeared as a source.

For each website we report:

• Mention share — a domain’s citations as a percentage of the summed citations of the top 50 most-cited sources. It shows how much of Grok’s “source attention” each website captures.
• vs last month — how the domain’s rank has moved since the previous monthly snapshot (▲ climbed, ▼ fell, or NEW if it wasn’t in last month’s top 50).
• Pages cited — the number of distinct pages on the domain that Grok cited, a measure of how broadly the site is referenced rather than how often.
• DR (Domain Rating) — Ahrefs’ 0–100 measure of a website’s backlink-profile strength, included for context on each source’s overall authority.

This article is generated and automatically kept up to date every month by Agent A, our AI agent. Each month it pulls the latest Brand Radar data, recalculates mention share and rank movement, and refreshes the chart and table above — so the figures always reflect the most recent snapshot.

Use Ahrefs’ Brand Radar to track your brand’s presence in Grok

To track your brand’s presence in Grok, you’ll need to use Ahrefs’ Brand Radar.

Measure your brand’s visibility in Grok, see the specific queries where your brand gets mentioned (and the ones where it doesn’t), the pages that mention your brand, and then compare every metric with your closest competitors: