249 cited runs of 15,782 observed answer runs.
Source domain profile · Community and social platform
Substack.com in the Machine Relations Index
substack.com appeared as a cited source in 249 of 15,782 monitored answer runs (1.58%) from 2026-05-10 to 2026-09-18.
Days cited and days observed in the current release window.
claude, gemini, google_ai_mode, google_ai_overviews, perplexity. This is an observed-engine list, not a per-engine rate.
MRI confidence is not an Answer-Source Fidelity grade.
Standing
Population ranks from the public release
- Public standing
- #18 of 22,179 observed domains
- Full universe
- #18 of 22,179
- Source role population
- #3 of 27
- Evidence-qualified source role
- #3 of 10
Segment evidence
Observed category and question-shape rows
Segment rates use the exact category/question-shape denominator. Collecting rows show sample progress only; null or missing rates are not rendered as 0%.
| Category | Question shape | State | Cited runs | Observed runs | Run dates | Rate | Confidence | Rank population |
|---|---|---|---|---|---|---|---|---|
| AI Infrastructure | Best tools | Published | 6 | 77 | 7 | 7.79% | Unavailable | #32 of 204 |
| AI Infrastructure | How buyers choose | Published | 6 | 106 | 7 | 5.66% | Unavailable | #28 of 258 |
| AI Infrastructure | Is it worth it | Published | 4 | 106 | 7 | 3.77% | Unavailable | #45 of 265 |
| AI Infrastructure | Problem-first research | Published | 5 | 106 | 7 | 4.72% | Unavailable | #20 of 212 |
| AI Infrastructure | Top lists | Published | 1 | 108 | 7 | 0.93% | Unavailable | #256 of 270 |
| AI Infrastructure | Comparisons | Published | 4 | 108 | 7 | 3.70% | Unavailable | #44 of 231 |
| AI Security & Privacy | Best tools | Published | 2 | 136 | 7 | 1.47% | Unavailable | #143 of 275 |
| AI Security & Privacy | Is it worth it | Published | 3 | 130 | 7 | 2.31% | Unavailable | #83 of 330 |
| AI Security & Privacy | Problem-first research | Published | 2 | 106 | 7 | 1.89% | Unavailable | #102 of 272 |
| AI Security & Privacy | Comparisons | Published | 13 | 114 | 7 | 11.40% | Unavailable | #10 of 263 |
| AI Visibility & GEO | Best tools | Published | 5 | 113 | 7 | 4.42% | Unavailable | #59 of 351 |
| AI Visibility & GEO | How buyers choose | Published | 1 | 113 | 7 | 0.88% | Unavailable | #398 of 448 |
| AI Visibility & GEO | Is it worth it | Published | 2 | 137 | 7 | 1.46% | Unavailable | #188 of 467 |
| AI Visibility & GEO | Problem-first research | Published | 1 | 132 | 7 | 0.76% | Unavailable | #382 of 420 |
| Consumer Products | How buyers choose | Published | 3 | 137 | 7 | 2.19% | Unavailable | #110 of 427 |
| Cybersecurity | Is it worth it | Published | 1 | 131 | 7 | 0.76% | Unavailable | #209 of 227 |
| Cybersecurity | News-driven citations | Published | 21 | 623 | 54 | 3.37% | Unavailable | #34 of 1,340 |
| Cybersecurity | Problem-first research | Published | 4 | 125 | 7 | 3.20% | Unavailable | #60 of 263 |
| Deep Tech & Hardware | Best tools | Published | 6 | 121 | 7 | 4.96% | Unavailable | #36 of 328 |
| Deep Tech & Hardware | How buyers choose | Published | 2 | 130 | 7 | 1.54% | Unavailable | #99 of 195 |
| Deep Tech & Hardware | Is it worth it | Published | 6 | 105 | 7 | 5.71% | Unavailable | #26 of 181 |
| Deep Tech & Hardware | Comparisons | Published | 3 | 105 | 7 | 2.86% | Unavailable | #62 of 171 |
| Education & Training | Problem-first research | Published | 3 | 100 | 7 | 3.00% | Unavailable | #44 of 229 |
| Emergent Prosumer | Best tools | Published | 12 | 100 | 7 | 12.00% | Unavailable | #5 of 219 |
| Emergent Prosumer | Is it worth it | Published | 1 | 100 | 7 | 1.00% | Unavailable | #122 of 136 |
| Emergent Prosumer | Comparisons | Published | 1 | 95 | 7 | 1.05% | Unavailable | #112 of 118 |
| Enterprise Software | News-driven citations | Published | 13 | 596 | 53 | 2.18% | Unavailable | #59 of 1,375 |
| Family Software | How buyers choose | Published | 1 | 104 | 7 | 0.96% | Unavailable | #145 of 153 |
| Family Software | Is it worth it | Published | 1 | 100 | 7 | 1.00% | Unavailable | #110 of 114 |
| Fintech | Best tools | Published | 1 | 108 | 7 | 0.93% | Unavailable | #196 of 224 |
| Fintech | How buyers choose | Published | 3 | 102 | 7 | 2.94% | Unavailable | #62 of 170 |
| Fintech | News-driven citations | Published | 21 | 616 | 53 | 3.41% | Unavailable | #31 of 1,531 |
| Healthcare Services | News-driven citations | Published | 19 | 613 | 53 | 3.10% | Unavailable | #32 of 1,264 |
| HR & Talent | News-driven citations | Published | 26 | 608 | 53 | 4.28% | Unavailable | #26 of 1,249 |
| HR & Talent | Problem-first research | Collecting observations | 1 | 65 | 4 | Unavailable | Unavailable | No mature rank |
| Legacy News Topics | News-driven citations | Published | 43 | 2,138 | 54 | 2.01% | Unavailable | #47 of 4,025 |
| Martech & Advertising | News-driven citations | Published | 2 | 602 | 53 | 0.33% | Unavailable | #504 of 1,244 |
Published segments: 36. Collecting segments: 1.
Release and boundary
How to cite this profile
Substack.com (substack.com), 1.58% citation rate, 249 of 15,782 monitored answer runs, 2026-05-10 to 2026-09-18, mri_score_v2.0, mri_score_v2.0+2026-09-18+8fa38e54dd0a, https://machinerelations.ai/index/domains/substack.com.
Release mri_score_v2.0+2026-09-18+8fa38e54dd0a; methodology mri_score_v2.0; generated 2026-09-18; window 2026-05-10 to 2026-09-18; artifact 8fa38e54dd0a.
The public dataset reports citation rates, rankings, and evidence counts. It excludes internal query identifiers, raw cited URLs, and answer-engine provider payloads. MRI measures observed root-domain citations in monitored prompts, not all AI answers, recommendation quality, web traffic or commercial performance. A citation is not source support.
AuthorityTech publication intelligence projection is a downstream practitioner projection. It is not source evidence, citation provenance, or sameAs identity for the neutral dataset.