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
76,054,739
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 713,100
2 instagram.com 136,073
3 x.com 96,672
4 allocine.fr 83,392
5 linkedin.com 62,734
6 deezer.com 54,426
7 facebook.com 50,022
8 twitter.com 48,120
9 namu.wiki 39,644
10 youtube.com 36,710
11 google.com 34,942
12 legacy.com 28,594
13 britannica.com 22,144
14 reddit.com 18,207
15 amazon.com 17,411
16 dictionary.com 16,618
17 microsoft.com 13,957
18 fandom.com 12,459
19 wiktionary.org 11,783
20 crunchbase.com 10,167
21 tiktok.com 9,100
22 trustpilot.com 9,007
23 letterboxd.com 8,740
24 rottentomatoes.com 8,219
25 yahoo.com 8,054
26 metacritic.com 7,600
27 github.com 7,052
28 quora.com 6,832
29 apple.com 6,537
30 fifa.com 6,492
31 justwatch.com 6,387
32 history.com 5,988
33 shopee.co.id 5,410
34 espn.com 5,252
35 wikiwand.com 5,198
36 hbomax.com 5,154
37 forbes.com 4,991
38 cambridge.org 4,976
39 epicgames.com 4,922
40 time.is 4,790
41 uk.com 4,781
42 imdb.com 4,755
43 billboard.com 4,572
44 theguardian.com 4,433
45 pinterest.com 4,424
46 shopee.ph 4,280
47 bbc.co.uk 4,087
48 dictionary.net 3,940
49 bbc.com 3,840
50 nhl.com 3,827
51 spotify.com 3,814
52 pornhub.com 3,758
53 independent.co.uk 3,731
54 isfdb.org 3,554
55 indeed.com 3,460
56 bloomberg.com 3,458
57 google.co.il 3,357
58 genius.com 3,351
59 bing.com 3,270
60 dell.com 3,225
61 vocabulary.com 3,192
62 wikia.com 3,151
63 nih.gov 3,063
64 xhamster.com 2,991
65 soundcloud.com 2,943
66 itv.com 2,874
67 eo-paris.fr 2,876
68 house.gov 2,857
69 nfl.com 2,849
70 temu.com 2,799
71 netflix.com 2,786
72 thesaurus.com 2,722
73 plus.lefigaro.fr 2,715
74 ca.gov 2,674
75 famousbirthdays.com 2,632
76 radiofrance.fr 2,608
77 goodreads.com 2,595
78 televisionacademy.com 2,571
79 amazon.co.uk 2,522
80 nytimes.com 2,449
81 google.com.br 2,437
82 france24.com 2,425
83 hotels.com 2,418
84 reuters.com 2,373
85 nintendo.com 2,326
86 the-independent.com 2,294
87 rateyourmusic.com 2,264
88 playstation.com 2,193
89 gog.com 2,187
90 deel.com 2,185
91 gov.uk 2,169
92 inc.com 2,160
93 ebay.com 2,137
94 zhihu.com 2,102
95 nasa.gov 2,100
96 one-line.com 2,096
97 loc.gov 2,089
98 delta.com 2,089
99 libri.de 2,055
100 aliexpress.com 2,044
101+ 62,102 additional niche-specific domains in full dataset covering 74,238,934 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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