Machine Relations Index (MRI)

Measurement window2026-05-10 to 2026-09-02

Published 2026-09-02 from the current dataset release covering 20,297 cited domains and 112,931 source events.

Sample threshold10/7

Rates publish after enough answer runs across distinct observation dates.

Segment coverage43.9%

69 validated segments, 82 still collecting observations.

Citation leaders

Top cited domains

Reddit#1 overall · Community and social platform100th percentile overall · 1,895 cited runs · 4 enginesYouTube#2 overall · Search or media platform100th percentile overall · 1,371 cited runs · 6 enginesLinkedIn#3 overall · Community and social platform100th percentile overall · 974 cited runs · 6 enginesMedium#1 of 1165 classified editorial publications · Editorial publication100th percentile overall · 790 cited runs · 6 enginesForbes#2 of 1165 classified editorial publications · Editorial publication100th percentile overall · 594 cited runs · 6 enginesGartner.com#6 overall · Analyst and consulting research100th percentile overall · 439 cited runs · 6 enginesNIH#7 overall · Academic and government source100th percentile overall · 426 cited runs · 6 enginesG2#8 overall · Market and company database100th percentile overall · 403 cited runs · 6 engines

Source universe

Cited source index

Initial view shows the top 50 domains from 20,297 total.

Data through 2026-09-02

All classesEditorial publicationAnalyst and consulting researchMarket and company databaseAcademic and government sourceCommunity and social platformWire and press-release distributionSearch or media platformVendor-owned sourceOther observed sourceAll enginesChatGPTClaudeGeminiGoogle AI ModeGoogle AI OverviewsPerplexityAll confidenceConfidence AConfidence BConfidence C

Row	Source	Class	Citation rate	Cited runs	Engines	Confidence	Strata
1	Redditreddit.com · #1 of 20,297 observed domains	Community and social platform	13.57%	1,895		Confidence A	81
2	YouTubeyoutube.com · #2 of 20,297 observed domains	Search or media platform	9.82%	1,371		Confidence A	77
3	LinkedInlinkedin.com · #3 of 20,297 observed domains	Community and social platform	6.97%	974		Confidence A	60
4	Mediummedium.com · #1 of 1165 classified editorial publications	Editorial publication	5.66%	790		Confidence A	60
5	Forbesforbes.com · #2 of 1165 classified editorial publications	Editorial publication	4.25%	594		Confidence A	48
6	Gartner.comgartner.com · #6 of 20,297 observed domains	Analyst and consulting research	3.14%	439		Confidence A	23
7	NIHnih.gov · #7 of 20,297 observed domains	Academic and government source	3.05%	426		Confidence A	34
8	G2g2.com · #8 of 20,297 observed domains	Market and company database	2.89%	403		Confidence A	25
9	Arxiv.orgarxiv.org · #9 of 20,297 observed domains	Academic and government source	2.84%	396		Confidence A	33
10	TechRadartechradar.com · #3 of 1165 classified editorial publications	Editorial publication	2.83%	395		Confidence A	42
11	Ibm.comibm.com · #11 of 20,297 observed domains	Vendor-owned source	2.18%	304		Confidence A	25
12	Microsoft.commicrosoft.com · #12 of 20,297 observed domains	Vendor-owned source	2.16%	302		Confidence A	33
13	Yahooyahoo.com · #4 of 1165 classified editorial publications	Editorial publication	2.16%	301		Confidence A	30
14	Landbase.comlandbase.com · #14 of 20,297 observed domains	Vendor-owned source	2.15%	300		Confidence A	9
15	Healthline.comhealthline.com · #15 of 20,297 observed domains	Other observed source	2.13%	297		Confidence B	12
16	Crunchbase.comcrunchbase.com · #16 of 20,297 observed domains	Market and company database	1.94%	271		Confidence B	7
17	Substack.comsubstack.com · #17 of 20,297 observed domains	Community and social platform	1.75%	245		Confidence B	34
18	Nerdwallet.comnerdwallet.com · #5 of 1165 classified editorial publications	Editorial publication	1.70%	238		Confidence B	10
19	Amazon.comamazon.com · #6 of 1165 classified editorial publications	Editorial publication	1.68%	235		Confidence B	36
20	Paloaltonetworks.compaloaltonetworks.com · #20 of 20,297 observed domains	Vendor-owned source	1.55%	216		Confidence B	14
21	TechTargettechtarget.com · #7 of 1165 classified editorial publications	Editorial publication	1.55%	216		Confidence B	24
22	Dev.todev.to · #22 of 20,297 observed domains	Community and social platform	1.46%	204		Confidence B	27
23	Facebook.comfacebook.com · #23 of 20,297 observed domains	Community and social platform	1.45%	202		Confidence B	55
24	Sentinelone.comsentinelone.com · #24 of 20,297 observed domains	Vendor-owned source	1.43%	200		Confidence B	10
25	Deloitte.comdeloitte.com · #25 of 20,297 observed domains	Analyst and consulting research	1.37%	191		Confidence B	10
26	Grandviewresearch.comgrandviewresearch.com · #26 of 20,297 observed domains	Market and company database	1.35%	188		Confidence B	8
27	Wikipediawikipedia.org · #27 of 20,297 observed domains	Academic and government source	1.30%	182		Confidence B	31
28	PR Newswireprnewswire.com · #8 of 1165 classified editorial publications	Editorial publication	1.27%	177		Confidence B	24
29	Y Combinatorycombinator.com · #29 of 20,297 observed domains	Community and social platform	1.18%	165		Confidence B	14
30	TechCrunchtechcrunch.com · #9 of 1165 classified editorial publications	Editorial publication	1.17%	163		Confidence B	9
31	Fortunebusinessinsights.comfortunebusinessinsights.com · #31 of 20,297 observed domains	Market and company database	1.15%	161		Confidence B	7
32	Github.comgithub.com · #32 of 20,297 observed domains	Community and social platform	1.07%	150		Confidence B	26
33	Hubspot.comhubspot.com · #33 of 20,297 observed domains	Vendor-owned source	1.02%	142		Confidence B	12
34	Mordorintelligence.commordorintelligence.com · #34 of 20,297 observed domains	Market and company database	1.01%	141		Confidence B	10
35	Nvidia.comnvidia.com · #35 of 20,297 observed domains	Vendor-owned source	1.01%	141		Confidence B	15
36	Experian.comexperian.com · #36 of 20,297 observed domains	Vendor-owned source	1.00%	140		Confidence C	6
37	Salesforce.comsalesforce.com · #37 of 20,297 observed domains	Vendor-owned source	1.00%	140		Confidence B	12
38	Bankrate.combankrate.com · #38 of 20,297 observed domains	Other observed source	1.00%	139		Confidence B	7
39	Harvard.eduharvard.edu · #39 of 20,297 observed domains	Academic and government source	1.00%	139		Confidence B	16
40	Guideflow.comguideflow.com · #40 of 20,297 observed domains	Vendor-owned source	0.98%	137		Confidence B	15
41	Databricks.comdatabricks.com · #41 of 20,297 observed domains	Vendor-owned source	0.95%	133		Confidence B	9
42	Axios.comaxios.com · #10 of 1165 classified editorial publications	Editorial publication	0.93%	130		Confidence B	16
43	Sciencedirect.comsciencedirect.com · #43 of 20,297 observed domains	Academic and government source	0.92%	128		Confidence B	25
44	Marketsandmarkets.commarketsandmarkets.com · #44 of 20,297 observed domains	Market and company database	0.90%	126		Confidence B	8
45	Cnbc.comcnbc.com · #11 of 1165 classified editorial publications	Editorial publication	0.90%	125		Confidence B	14
46	Nytimes.comnytimes.com · #12 of 1165 classified editorial publications	Editorial publication	0.86%	120		Confidence B	18
47	Fiercehealthcare.comfiercehealthcare.com · #13 of 1165 classified editorial publications	Editorial publication	0.84%	118		Confidence B	2
48	Zapier.comzapier.com · #48 of 20,297 observed domains	Vendor-owned source	0.84%	118		Confidence B	18
49	Failory.comfailory.com · #49 of 20,297 observed domains	Market and company database	0.84%	117		Confidence B	7
50	Instagram.cominstagram.com · #50 of 20,297 observed domains	Other observed source	0.82%	114		Confidence B	31

Showing 1-50 of 50

The Machine Relations Index measures how often AI answer engines cite each source domain when people ask real buying and research questions. It observes six engines — Perplexity, ChatGPT, Gemini, Claude, Google AI Mode, and Google AI Overviews — across a fixed basket of 24 measured subject categories plus a legacy news-topic bucket (25 taxonomy nodes in all). Findings are grouped into strata, where a stratum is one subject category paired with one question type. A stratum publishes a citation rate only after it clears the evidence floor of at least 10 observed runs across at least 7 distinct dates; below that line it is marked collecting rather than scored, so early or thin signal is never shown as settled. Every domain an engine cites is measured on equal terms — membership in any external catalog is recorded only as a label and is never used to decide what gets scored. The public Index reports rates and rankings; it excludes raw cited URLs, internal query identifiers, and provider payloads. Validated source segments currently cover 43.9% of the monitored benchmark.

Release mri_score_v2.0+2026-09-02+598e6c65f8c3.