Machine Relations Index (MRI)

Measurement window2026-05-10 to 2026-08-07

Published 2026-08-07 from the current dataset release covering 17,533 cited domains and 93,093 source events.

Sample threshold10/7

Rates publish after enough answer runs across distinct observation dates.

Segment coverage21.0%

33 validated segments, 118 still collecting observations.

Citation leaders

Top cited domains

Reddit#1 overall · Community and social platform100th percentile overall · 1,420 cited runs · 4 enginesYouTube#2 overall · Search or media platform100th percentile overall · 1,191 cited runs · 6 enginesLinkedIn#3 overall · Community and social platform100th percentile overall · 826 cited runs · 6 enginesMedium#1 of 1088 classified editorial publications · Editorial publication100th percentile overall · 720 cited runs · 6 enginesForbes#2 of 1088 classified editorial publications · Editorial publication100th percentile overall · 471 cited runs · 6 enginesGartner.com#6 overall · Analyst and consulting research100th percentile overall · 389 cited runs · 6 enginesNIH#7 overall · Academic and government source100th percentile overall · 382 cited runs · 6 enginesG2#8 overall · Market and company database100th percentile overall · 355 cited runs · 6 engines

Source universe

Cited source index

Initial view shows the top 50 domains from 17,533 total.

Data through 2026-08-07

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 17,533 observed domains	Community and social platform	12.90%	1,420		Confidence A	61
2	YouTubeyoutube.com · #2 of 17,533 observed domains	Search or media platform	10.82%	1,191		Confidence A	61
3	LinkedInlinkedin.com · #3 of 17,533 observed domains	Community and social platform	7.50%	826		Confidence A	49
4	Mediummedium.com · #1 of 1088 classified editorial publications	Editorial publication	6.54%	720		Confidence A	43
5	Forbesforbes.com · #2 of 1088 classified editorial publications	Editorial publication	4.28%	471		Confidence A	33
6	Gartner.comgartner.com · #6 of 17,533 observed domains	Analyst and consulting research	3.53%	389		Confidence A	16
7	NIHnih.gov · #7 of 17,533 observed domains	Academic and government source	3.47%	382		Confidence A	29
8	G2g2.com · #8 of 17,533 observed domains	Market and company database	3.22%	355		Confidence A	19
9	Arxiv.orgarxiv.org · #9 of 17,533 observed domains	Academic and government source	3.16%	348		Confidence A	29
10	Ibm.comibm.com · #10 of 17,533 observed domains	Vendor-owned source	2.74%	302		Confidence A	24
11	Landbase.comlandbase.com · #11 of 17,533 observed domains	Vendor-owned source	2.70%	297		Confidence B	8
12	Yahooyahoo.com · #3 of 1088 classified editorial publications	Editorial publication	2.64%	291		Confidence B	26
13	Healthline.comhealthline.com · #13 of 17,533 observed domains	Other observed source	2.63%	289		Confidence B	12
14	Microsoft.commicrosoft.com · #14 of 17,533 observed domains	Vendor-owned source	2.51%	276		Confidence B	28
15	Crunchbase.comcrunchbase.com · #15 of 17,533 observed domains	Market and company database	2.46%	271		Confidence B	7
16	Nerdwallet.comnerdwallet.com · #4 of 1088 classified editorial publications	Editorial publication	2.13%	234		Confidence B	9
17	TechRadartechradar.com · #5 of 1088 classified editorial publications	Editorial publication	2.02%	222		Confidence B	24
18	Substack.comsubstack.com · #18 of 17,533 observed domains	Community and social platform	1.93%	212		Confidence B	27
19	Paloaltonetworks.compaloaltonetworks.com · #19 of 17,533 observed domains	Vendor-owned source	1.84%	203		Confidence B	14
20	Dev.todev.to · #20 of 17,533 observed domains	Community and social platform	1.75%	193		Confidence B	24
21	Amazon.comamazon.com · #6 of 1088 classified editorial publications	Editorial publication	1.71%	188		Confidence B	27
22	Grandviewresearch.comgrandviewresearch.com · #22 of 17,533 observed domains	Market and company database	1.71%	188		Confidence B	8
23	Deloitte.comdeloitte.com · #23 of 17,533 observed domains	Analyst and consulting research	1.63%	179		Confidence B	9
24	Sentinelone.comsentinelone.com · #24 of 17,533 observed domains	Vendor-owned source	1.63%	179		Confidence B	10
25	Facebook.comfacebook.com · #25 of 17,533 observed domains	Community and social platform	1.55%	171		Confidence B	47
26	TechTargettechtarget.com · #7 of 1088 classified editorial publications	Editorial publication	1.54%	169		Confidence B	18
27	PR Newswireprnewswire.com · #8 of 1088 classified editorial publications	Editorial publication	1.48%	163		Confidence B	21
28	Y Combinatorycombinator.com · #28 of 17,533 observed domains	Community and social platform	1.47%	162		Confidence B	12
29	Fortunebusinessinsights.comfortunebusinessinsights.com · #29 of 17,533 observed domains	Market and company database	1.46%	161		Confidence B	7
30	TechCrunchtechcrunch.com · #9 of 1088 classified editorial publications	Editorial publication	1.46%	161		Confidence B	8
31	Wikipediawikipedia.org · #31 of 17,533 observed domains	Academic and government source	1.34%	148		Confidence B	24
32	Hubspot.comhubspot.com · #32 of 17,533 observed domains	Vendor-owned source	1.29%	142		Confidence B	12
33	Experian.comexperian.com · #33 of 17,533 observed domains	Vendor-owned source	1.27%	140		Confidence C	6
34	Mordorintelligence.commordorintelligence.com · #34 of 17,533 observed domains	Market and company database	1.26%	139		Confidence B	9
35	Databricks.comdatabricks.com · #35 of 17,533 observed domains	Vendor-owned source	1.21%	133		Confidence B	9
36	Harvard.eduharvard.edu · #36 of 17,533 observed domains	Academic and government source	1.21%	133		Confidence B	12
37	Salesforce.comsalesforce.com · #37 of 17,533 observed domains	Vendor-owned source	1.21%	133		Confidence B	10
38	Bankrate.combankrate.com · #38 of 17,533 observed domains	Other observed source	1.20%	132		Confidence C	6
39	Axios.comaxios.com · #10 of 1088 classified editorial publications	Editorial publication	1.17%	129		Confidence B	16
40	Github.comgithub.com · #40 of 17,533 observed domains	Community and social platform	1.17%	129		Confidence B	21
41	Nvidia.comnvidia.com · #41 of 17,533 observed domains	Vendor-owned source	1.16%	128		Confidence B	14
42	Marketsandmarkets.commarketsandmarkets.com · #42 of 17,533 observed domains	Market and company database	1.14%	126		Confidence B	8
43	Cnbc.comcnbc.com · #11 of 1088 classified editorial publications	Editorial publication	1.14%	125		Confidence B	14
44	Fiercehealthcare.comfiercehealthcare.com · #12 of 1088 classified editorial publications	Editorial publication	1.07%	118		Confidence B	2
45	Failory.comfailory.com · #45 of 17,533 observed domains	Market and company database	1.06%	117		Confidence B	7
46	Shadow.incshadow.inc · #13 of 1088 classified editorial publications	Editorial publication	1.00%	110		Confidence B	5
47	Tracxn.comtracxn.com · #47 of 17,533 observed domains	Market and company database	0.99%	109		Confidence B	7
48	Guideflow.comguideflow.com · #48 of 17,533 observed domains	Vendor-owned source	0.96%	106		Confidence B	9
49	Instagram.cominstagram.com · #49 of 17,533 observed domains	Other observed source	0.95%	105		Confidence B	28
50	Webmd.comwebmd.com · #50 of 17,533 observed domains	Other observed source	0.95%	105		Confidence C	9

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 21.0% of the monitored benchmark.

Release mri_score_v2.0+2026-08-07+be3a7c0c2943.