Google Knowledge Graph: Entity isReference Domains

Dataset: 62,202 isReference domains | entities

Proprietary analysis of Google's entity validation patterns across the Knowledge Graph.

The Google leak in May 2024 confirmed that Google explicitly associates people with their profile pages (isReference) and articles they have written (isAuthor).

⚠️ You Can't Use Just ANY Domain!

Out of 1,738,093 domains we monitor, only 62,202 qualify as isReference domains.

3.65%

Only 3.65% of domains earn isReference status from Google. Domain selection is critical.

Wikipedia is NOT Required (or even your best bet)

Wikipedia: 6 million entities
Kalicube Pro: 71 million entities
Knowledge Graph: 50 billion entities

0.012%

Wikipedia covers only 0.012% of the Knowledge Graph. If your entity isn't in that 0.012%, you need to build a Knowledge Panel with ~30 isReference url instead.

Why isReference Domains Control AI Narrative

AI assistants (ChatGPT, Google AI, Microsoft Copilot) rely on three sources - the Algorithmic Trinity(and Kalicube Pro tracks all three for every client !):

1. LLM Memory

Creative but unreliable. Will hallucinate without facts.

2. Knowledge Graph

The trusted encyclopedia. isReference domains are how you get IN.

3. Search Results

Real-time window. Needs KG foundation first.

The bottom line: Without isReference validation → No Knowledge Graph entry → AI assistants hallucinate about your brand. The domains below are your path to entity recognition.

Check Your Current KG Status Monitor KG Updates

📊 Kalicube's Entity Validation Dataset

1,738,093

Domains Checked Regularly

62,202

isReference Domains

3.58% qualify

23,295,240

URLs Monitored

71,852,873

Entities Tracked

💡 Even Small Niche Domains Have isReference Authority

Examples from our dataset (December 2025):

kalicube.com	21 entities
searchengineland.com	11 entities
jasonbarnard.com	86 entities

searchenginejournal.com	270 entities
entrepreneur.com	1,292 entities
forbes.com	2,823 entities

Your niche-specific domains may have similar authority in your category.

Top 100 isReference Domains for All Entity Types

Rank	Domain	Entity Count
1	wikipedia.org	1,171,851
2	linkedin.com	146,843
3	namu.wiki	135,554
4	twitter.com	129,926
5	facebook.com	73,047
6	x.com	69,140
7	amazon.com	61,388
8	instagram.com	44,163
9	youtube.com	26,478
10	crunchbase.com	21,017
11	isfdb.org	15,710
12	wiktionary.org	12,969
13	legacy.com	11,913
14	britannica.com	11,690
15	google.com	9,970
16	reddit.com	9,389
17	gutenberg.org	9,307
18	letterboxd.com	7,291
19	dictionary.com	6,780
20	trustpilot.com	6,628
21	tiktok.com	6,478
22	yahoo.com	6,017
23	wikiquote.org	5,961
24	apple.com	5,338
25	fandom.com	4,877
26	famousbirthdays.com	4,742
27	nintendo.com	4,346
28	justwatch.com	4,218
29	quora.com	3,935
30	house.gov	3,794
31	imdb.com	3,554
32	mit.edu	3,380
33	investing.com	3,341
34	ed.gov	3,094
35	rottentomatoes.com	3,076
36	genius.com	2,939
37	soundcloud.com	2,934
38	treated.com	2,900
39	wikisource.org	2,877
40	forbes.com	2,826
41	family-side.com	2,799
42	pinterest.com	2,773
43	last.fm	2,704
44	war.gov	2,670
45	10.com.au	2,652
46	example.com	2,604
47	awards.com	2,537
48	stanford.edu	2,465
49	thesaurus.com	2,379
50	app-microsoft.com	2,337
51	the-awards.co.uk	2,328
52	microsoft.com	2,325
53	baseball-almanac.com	2,263
54	wikiwand.com	2,245
55	github.com	2,240
56	theguardian.com	2,239
57	b.com	2,235
58	indeed.com	2,186
59	dr-it.co.uk	2,163
60	notrecinema.com	2,155
61	bloomberg.com	2,118
62	netflix.com	2,114
63	climate.com	2,065
64	artnet.com	2,027
65	yale.edu	1,974
66	cnn.com	1,970
67	virgin.com	1,971
68	amazon.co.uk	1,906
69	espn.com	1,886
70	twitch.tv	1,883
71	un.org	1,834
72	baron-baron.com	1,830
73	ca.gov	1,746
74	rs-online.com	1,703
75	google.com.au	1,645
76	meta.com	1,624
77	es.com.vn	1,617
78	vocabulary.com	1,615
79	state.gov	1,596
80	it-iq.com	1,583
81	nb.com	1,541
82	altro.com	1,527
83	be-life.eu	1,524
84	spotify.com	1,483
85	baidu.com	1,480
86	ua-med.org	1,473
87	nature.com	1,471
88	minorplanetcenter.net	1,468
89	wimbledon.com	1,451
90	usda.gov	1,440
91	hockeydb.com	1,433
92	ms.now	1,428
93	tamu.edu	1,427
94	reuters.com	1,426
95	inc.com	1,423
96	la-public.com	1,420
97	earned.com	1,417
98	history.com	1,419
99	cuny.edu	1,400
100	shared.nl	1,404
101+	62,102 additional niche-specific domains in full dataset covering 69,677,131 additional entities

Why This Data Matters

Google validates entity information through patterns of corroborating mentions across trusted domains. This list shows where Google recognizes all entity types - but here's the catch: entity authority is extremely niche-specific.

Entity Validation at Scale

Google's Knowledge Graph requires consistent entity recognition across validated domains.

Only 3.65% of domains (62202 out of 1738093) qualify as isReference
Brands typically need ~30 entity-validated url for a stable Knowledge Panel
Each niche has unique entity authority patterns
Generic "authority lists" miss 95%+ of niche-specific opportunities

⚠️ This Free List is Intentionally Limited

The top 100 domains shown above are dominated by massive generalist sites. For 99% of brands, the real opportunities lie in the niche-specific domains that only appear in our full platform dataset.

Recommended Reading:

🔐 Find YOUR Niche-Specific isReference Domains

We monitor 23M+ URLs across 1.7M domains to identify the exclusive 3.65% that qualify as isReference domains for 72M+ entities. The Kalicube Pro platform maps your competitive landscape and identifies your niche-specific opportunities in 15 minutes.

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