Machine Relations Index (MRI)

Measurement window2026-05-10 to 2026-07-19

Published 2026-07-19 from the current dataset release covering 15,756 cited domains and 74,597 source events.

Sample threshold10/7

Rates publish after enough answer runs across distinct observation dates.

Segment coverage5.7%

9 validated segments, 142 still collecting observations.

Citation leaders

Top cited domains

Reddit#1 overall · Community and social platform100th percentile overall · 983 cited runs · 4 enginesLinkedIn#2 overall · Community and social platform100th percentile overall · 698 cited runs · 6 enginesYouTube#3 overall · Search or media platform100th percentile overall · 689 cited runs · 6 enginesMedium#1 of 1021 classified editorial publications · Editorial publication100th percentile overall · 570 cited runs · 6 enginesGartner.com#5 overall · Analyst and consulting research100th percentile overall · 377 cited runs · 6 enginesG2#6 overall · Market and company database100th percentile overall · 334 cited runs · 6 enginesForbes#2 of 1021 classified editorial publications · Editorial publication100th percentile overall · 330 cited runs · 6 enginesLandbase.com#8 overall · Vendor-owned source100th percentile overall · 296 cited runs · 6 engines

Source universe

Cited source index

Initial view shows the top 50 domains from 15,756 total.

Data through 2026-07-19

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 15,756 observed domains	Community and social platform	11.30%	983		Confidence A	61
2	LinkedInlinkedin.com · #2 of 15,756 observed domains	Community and social platform	8.02%	698		Confidence A	48
3	YouTubeyoutube.com · #3 of 15,756 observed domains	Search or media platform	7.92%	689		Confidence A	61
4	Mediummedium.com · #1 of 1021 classified editorial publications	Editorial publication	6.55%	570		Confidence A	39
5	Gartner.comgartner.com · #5 of 15,756 observed domains	Analyst and consulting research	4.33%	377		Confidence A	16
6	G2g2.com · #6 of 15,756 observed domains	Market and company database	3.84%	334		Confidence A	16
7	Forbesforbes.com · #2 of 1021 classified editorial publications	Editorial publication	3.79%	330		Confidence A	32
8	Landbase.comlandbase.com · #8 of 15,756 observed domains	Vendor-owned source	3.40%	296		Confidence B	7
9	NIHnih.gov · #9 of 15,756 observed domains	Academic and government source	3.25%	283		Confidence B	27
10	Crunchbase.comcrunchbase.com · #10 of 15,756 observed domains	Market and company database	3.11%	271		Confidence B	7
11	Ibm.comibm.com · #11 of 15,756 observed domains	Vendor-owned source	3.01%	262		Confidence B	24
12	Arxiv.orgarxiv.org · #12 of 15,756 observed domains	Academic and government source	2.65%	231		Confidence B	28
13	Microsoft.commicrosoft.com · #13 of 15,756 observed domains	Vendor-owned source	2.44%	212		Confidence B	25
14	Yahooyahoo.com · #3 of 1021 classified editorial publications	Editorial publication	2.37%	206		Confidence B	22
15	TechRadartechradar.com · #4 of 1021 classified editorial publications	Editorial publication	2.23%	194		Confidence B	23
16	Substack.comsubstack.com · #16 of 15,756 observed domains	Community and social platform	2.16%	188		Confidence B	25
17	Grandviewresearch.comgrandviewresearch.com · #17 of 15,756 observed domains	Market and company database	2.15%	187		Confidence B	7
18	Deloitte.comdeloitte.com · #18 of 15,756 observed domains	Analyst and consulting research	2.05%	178		Confidence B	9
19	Fortunebusinessinsights.comfortunebusinessinsights.com · #19 of 15,756 observed domains	Market and company database	1.85%	161		Confidence B	7
20	Healthline.comhealthline.com · #20 of 15,756 observed domains	Other observed source	1.85%	161		Confidence C	12
21	Y Combinatorycombinator.com · #21 of 15,756 observed domains	Community and social platform	1.85%	161		Confidence B	12
22	TechCrunchtechcrunch.com · #5 of 1021 classified editorial publications	Editorial publication	1.84%	160		Confidence B	7
23	Paloaltonetworks.compaloaltonetworks.com · #23 of 15,756 observed domains	Vendor-owned source	1.75%	152		Confidence B	14
24	Sentinelone.comsentinelone.com · #24 of 15,756 observed domains	Vendor-owned source	1.72%	150		Confidence B	10
25	PR Newswireprnewswire.com · #6 of 1021 classified editorial publications	Editorial publication	1.67%	145		Confidence B	18
26	Mordorintelligence.commordorintelligence.com · #26 of 15,756 observed domains	Market and company database	1.60%	139		Confidence B	9
27	TechTargettechtarget.com · #7 of 1021 classified editorial publications	Editorial publication	1.60%	139		Confidence B	16
28	Wikipediawikipedia.org · #28 of 15,756 observed domains	Academic and government source	1.59%	138		Confidence B	22
29	Salesforce.comsalesforce.com · #29 of 15,756 observed domains	Vendor-owned source	1.46%	127		Confidence B	8
30	Marketsandmarkets.commarketsandmarkets.com · #30 of 15,756 observed domains	Market and company database	1.45%	126		Confidence B	8
31	Dev.todev.to · #31 of 15,756 observed domains	Community and social platform	1.44%	125		Confidence B	23
32	Databricks.comdatabricks.com · #32 of 15,756 observed domains	Vendor-owned source	1.38%	120		Confidence B	8
33	Fiercehealthcare.comfiercehealthcare.com · #8 of 1021 classified editorial publications	Editorial publication	1.36%	118		Confidence B	2
34	Failory.comfailory.com · #34 of 15,756 observed domains	Market and company database	1.34%	117		Confidence B	7
35	Axios.comaxios.com · #9 of 1021 classified editorial publications	Editorial publication	1.31%	114		Confidence B	14
36	Facebook.comfacebook.com · #36 of 15,756 observed domains	Community and social platform	1.31%	114		Confidence B	43
37	Nerdwallet.comnerdwallet.com · #10 of 1021 classified editorial publications	Editorial publication	1.31%	114		Confidence B	9
38	Amazon.comamazon.com · #11 of 1021 classified editorial publications	Editorial publication	1.30%	113		Confidence B	26
39	Tracxn.comtracxn.com · #39 of 15,756 observed domains	Market and company database	1.25%	109		Confidence B	7
40	Hubspot.comhubspot.com · #40 of 15,756 observed domains	Vendor-owned source	1.24%	108		Confidence B	12
41	Nvidia.comnvidia.com · #41 of 15,756 observed domains	Vendor-owned source	1.24%	108		Confidence B	12
42	Harvard.eduharvard.edu · #42 of 15,756 observed domains	Academic and government source	1.20%	104		Confidence B	12
43	Qubit.capitalqubit.capital · #43 of 15,756 observed domains	Market and company database	1.20%	104		Confidence B	7
44	Shadow.incshadow.inc · #12 of 1021 classified editorial publications	Editorial publication	1.20%	104		Confidence B	4
45	Openvc.appopenvc.app · #45 of 15,756 observed domains	Market and company database	1.18%	103		Confidence B	6
46	Cbinsights.comcbinsights.com · #46 of 15,756 observed domains	Market and company database	1.15%	100		Confidence B	7
47	Guideflow.comguideflow.com · #47 of 15,756 observed domains	Vendor-owned source	1.14%	99		Confidence C	7
48	Itpro.comitpro.com · #13 of 1021 classified editorial publications	Editorial publication	1.11%	97		Confidence C	9
49	MarTechmartech.org · #14 of 1021 classified editorial publications	Editorial publication	1.06%	92		Confidence C	2
50	Sciencedirect.comsciencedirect.com · #50 of 15,756 observed domains	Academic and government source	1.05%	91		Confidence C	21

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 5.7% of the monitored benchmark.

Release mri_score_v2.0+2026-07-19+30a596992620.