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

70,269,600

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	1,911,609
2	linkedin.com	253,748
3	twitter.com	217,650
4	namu.wiki	132,713
5	facebook.com	94,982
6	amazon.com	94,777
7	x.com	72,801
8	instagram.com	46,818
9	youtube.com	29,952
10	crunchbase.com	21,431
11	isfdb.org	19,574
12	wiktionary.org	18,495
13	google.com	13,986
14	britannica.com	13,945
15	legacy.com	11,797
16	gutenberg.org	9,671
17	yahoo.com	9,178
18	trustpilot.com	8,831
19	wikiquote.org	8,615
20	dictionary.com	8,179
21	reddit.com	8,132
22	letterboxd.com	7,393
23	tiktok.com	6,833
24	fandom.com	6,779
25	apple.com	5,482
26	famousbirthdays.com	4,886
27	justwatch.com	4,564
28	nintendo.com	4,346
29	rottentomatoes.com	4,091
30	quora.com	3,856
31	indeed.com	3,847
32	house.gov	3,783
33	linkedin.cn	3,746
34	imdb.com	3,603
35	investing.com	3,366
36	mit.edu	3,338
37	forbes.com	3,278
38	wikiwand.com	3,232
39	ed.gov	3,094
40	coach.com	3,017
41	awards.com	2,933
42	treated.com	2,900
43	wikisource.org	2,900
44	the-awards.co.uk	2,826
45	family-side.com	2,799
46	pinterest.com	2,783
47	last.fm	2,710
48	microsoft.com	2,696
49	war.gov	2,670
50	10.com.au	2,652
51	meta.com	2,616
52	example.com	2,604
53	soundcloud.com	2,549
54	a-artist.com	2,539
55	netflix.com	2,522
56	espn.com	2,513
57	stanford.edu	2,475
58	genius.com	2,453
59	artnet.com	2,387
60	thesaurus.com	2,380
61	app-microsoft.com	2,337
62	github.com	2,295
63	baseball-almanac.com	2,263
64	b.com	2,235
65	nb.com	2,199
66	notrecinema.com	2,197
67	yale.edu	2,174
68	dr-it.co.uk	2,163
69	reuters.com	2,098
70	climate.com	2,065
71	cambridge.org	2,048
72	un.org	2,037
73	uk.com	2,032
74	cnn.com	2,007
75	virgin.com	1,971
76	bu.edu	1,927
77	tommy.com	1,915
78	vocabulary.com	1,912
79	twitch.tv	1,884
80	diesel.com	1,847
81	theguardian.com	1,850
82	baron-baron.com	1,830
83	bbc.com	1,820
84	rs-online.com	1,815
85	ca.gov	1,760
86	bloomberg.com	1,656
87	rakuten.com	1,637
88	es.com.vn	1,617
89	key.com	1,597
90	state.gov	1,598
91	it-iq.com	1,583
92	wa.gov.au	1,565
93	triumph.com	1,556
94	free-range.org.uk	1,556
95	altro.com	1,527
96	be-life.eu	1,526
97	wimbledon.com	1,507
98	asko.com	1,506
99	baidu.com	1,480
100	spotify.com	1,486
101+	62,102 additional niche-specific domains in full dataset covering 67,053,197 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.

Work With Us