Trusted Sources

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.

Key concepts:

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.

📊 Kalicube's Entity Validation Dataset

1,738,093
Domains Checked Regularly
62,202
isReference Domains
3.58% qualify
23,295,240
URLs Monitored
75,467,753
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 2,393,600
2 linkedin.com 328,008
3 twitter.com 298,837
4 instagram.com 134,806
5 amazon.com 127,257
6 x.com 107,294
7 allocine.fr 102,375
8 facebook.com 97,720
9 deezer.com 56,450
10 namu.wiki 41,175
11 google.com 39,914
12 youtube.com 38,744
13 legacy.com 29,361
14 wiktionary.org 23,951
15 britannica.com 23,435
16 reddit.com 17,909
17 isfdb.org 17,825
18 yahoo.com 17,220
19 trustpilot.com 16,902
20 dictionary.com 14,699
21 fandom.com 13,770
22 gutenberg.org 10,917
23 crunchbase.com 10,863
24 microsoft.com 10,527
25 tiktok.com 10,262
26 rottentomatoes.com 9,206
27 metacritic.com 9,121
28 letterboxd.com 8,103
29 uk.com 8,092
30 espn.com 7,797
31 apple.com 6,786
32 github.com 6,496
33 quora.com 5,818
34 wikiwand.com 5,805
35 history.com 5,748
36 fifa.com 5,609
37 webuy.com 5,580
38 shopee.co.id 5,301
39 spotify.com 5,258
40 wikia.com 5,249
41 indeed.com 5,228
42 bbc.co.uk 5,014
43 justwatch.com 4,911
44 pinterest.com 4,912
45 wikiquote.org 4,890
46 reuters.com 4,598
47 plus.lefigaro.fr 4,526
48 premiere.fr 4,494
49 hotels.com 4,466
50 imdb.com 4,456
51 theguardian.com 4,437
52 forbes.com 4,412
53 time.is 4,349
54 billboard.com 4,342
55 vocabulary.com 4,254
56 shopee.ph 4,216
57 bloomberg.com 4,176
58 cambridge.org 4,180
59 vikidia.org 4,096
60 epicgames.com 4,084
61 bbc.com 3,967
62 ign.com 3,815
63 linkedin.cn 3,737
64 google.com.br 3,724
65 hbomax.com 3,693
66 nhl.com 3,647
67 soundcloud.com 3,580
68 pornhub.com 3,489
69 playstation.com 3,409
70 google.co.il 3,360
71 ca.gov 3,346
72 dell.com 3,317
73 nih.gov 3,255
74 netflix.com 3,234
75 famousbirthdays.com 3,211
76 bing.com 3,188
77 genius.com 3,077
78 mit.edu 2,951
79 itv.com 2,940
80 independent.co.uk 2,834
81 nytimes.com 2,759
82 search.google 2,628
83 radiofrance.fr 2,597
84 meta.com 2,571
85 house.gov 2,539
86 a-artist.com 2,539
87 discovery.ca 2,526
88 thesaurus.com 2,532
89 inc.com 2,512
90 watch.plex.tv 2,469
91 france24.com 2,464
92 go.com 2,414
93 kpmg.com 2,394
94 rateyourmusic.com 2,396
95 nps.gov 2,391
96 chess.com 2,368
97 nintendo.com 2,302
98 dictionary.net 2,290
99 coach.com 2,274
100 washington.edu 2,270
101+ 62,102 additional niche-specific domains in full dataset covering 71,176,913 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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