485 cited runs of 15,782 observed answer runs.
Source domain profile · Academic and government source
NIH in the Machine Relations Index
nih.gov appeared as a cited source in 485 of 15,782 monitored answer runs (3.07%) from 2026-05-10 to 2026-09-18.
Days cited and days observed in the current release window.
chatgpt, 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
- #6 of 22,179 observed domains
- Full universe
- #6 of 22,179
- Source role population
- #1 of 413
- Evidence-qualified source role
- #1 of 22
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 | 1 | 77 | 7 | 1.30% | Unavailable | #159 of 204 |
| AI Infrastructure | Problem-first research | Published | 1 | 106 | 7 | 0.94% | Unavailable | #156 of 212 |
| AI Infrastructure | Comparisons | Published | 5 | 108 | 7 | 4.63% | Unavailable | #32 of 231 |
| AI Security & Privacy | Best tools | Published | 8 | 136 | 7 | 5.88% | Unavailable | #39 of 275 |
| AI Security & Privacy | Is it worth it | Published | 1 | 130 | 7 | 0.77% | Unavailable | #256 of 330 |
| AI Security & Privacy | Problem-first research | Published | 3 | 106 | 7 | 2.83% | Unavailable | #58 of 272 |
| AI Security & Privacy | Top lists | Published | 1 | 106 | 7 | 0.94% | Unavailable | #245 of 313 |
| AI Security & Privacy | Comparisons | Published | 4 | 114 | 7 | 3.51% | Unavailable | #46 of 263 |
| AI Visibility & GEO | Is it worth it | Published | 7 | 137 | 7 | 5.11% | Unavailable | #36 of 467 |
| AI Visibility & GEO | Top lists | Published | 1 | 71 | 7 | 1.41% | Unavailable | #291 of 412 |
| Consumer Health | Best tools | Published | 29 | 132 | 7 | 21.97% | Unavailable | #5 of 298 |
| Consumer Health | How buyers choose | Published | 37 | 131 | 7 | 28.24% | Unavailable | #1 of 339 |
| Consumer Health | Is it worth it | Published | 48 | 130 | 7 | 36.92% | Unavailable | #2 of 213 |
| Consumer Health | Problem-first research | Published | 14 | 131 | 7 | 10.69% | Unavailable | #13 of 227 |
| Consumer Health | Top lists | Published | 12 | 131 | 7 | 9.16% | Unavailable | #21 of 338 |
| Consumer Health | Comparisons | Published | 26 | 131 | 7 | 19.85% | Unavailable | #4 of 217 |
| Consumer Products | Best tools | Published | 2 | 131 | 7 | 1.53% | Unavailable | #138 of 318 |
| Consumer Products | How buyers choose | Published | 3 | 137 | 7 | 2.19% | Unavailable | #100 of 427 |
| Consumer Products | Is it worth it | Published | 3 | 136 | 7 | 2.21% | Unavailable | #77 of 228 |
| Consumer Products | Problem-first research | Published | 5 | 132 | 7 | 3.79% | Unavailable | #38 of 216 |
| Consumer Products | Comparisons | Published | 1 | 131 | 7 | 0.76% | Unavailable | #218 of 268 |
| Cybersecurity | News-driven citations | Published | 2 | 623 | 54 | 0.32% | Unavailable | #518 of 1,340 |
| Cybersecurity | Top lists | Published | 4 | 130 | 7 | 3.08% | Unavailable | #81 of 264 |
| Cybersecurity | Comparisons | Published | 7 | 107 | 7 | 6.54% | Unavailable | #22 of 189 |
| Deep Tech & Hardware | Best tools | Published | 9 | 121 | 7 | 7.44% | Unavailable | #19 of 328 |
| Deep Tech & Hardware | Problem-first research | Published | 2 | 104 | 7 | 1.92% | Unavailable | #66 of 157 |
| Deep Tech & Hardware | Top lists | Published | 15 | 106 | 7 | 14.15% | Unavailable | #4 of 279 |
| Deep Tech & Hardware | Comparisons | Published | 3 | 105 | 7 | 2.86% | Unavailable | #60 of 171 |
| Emergent Prosumer | How buyers choose | Published | 3 | 100 | 7 | 3.00% | Unavailable | #73 of 192 |
| Family Software | How buyers choose | Published | 7 | 104 | 7 | 6.73% | Unavailable | #20 of 153 |
| Family Software | Problem-first research | Published | 1 | 108 | 7 | 0.93% | Unavailable | #158 of 195 |
| Fintech | News-driven citations | Published | 6 | 616 | 53 | 0.97% | Unavailable | #209 of 1,531 |
| Fintech | Comparisons | Published | 1 | 102 | 7 | 0.98% | Unavailable | #118 of 136 |
| Healthcare Services | Best tools | Collecting observations | 2 | 101 | 6 | Unavailable | Unavailable | No mature rank |
| Healthcare Services | How buyers choose | Collecting observations | 7 | 101 | 6 | Unavailable | Unavailable | No mature rank |
| Healthcare Services | Is it worth it | Collecting observations | 28 | 101 | 6 | Unavailable | Unavailable | No mature rank |
| Healthcare Services | News-driven citations | Published | 154 | 613 | 53 | 25.12% | Unavailable | #1 of 1,264 |
| Healthcare Services | Problem-first research | Collecting observations | 7 | 102 | 6 | Unavailable | Unavailable | No mature rank |
| Healthcare Services | Top lists | Collecting observations | 2 | 78 | 6 | Unavailable | Unavailable | No mature rank |
| Healthcare Services | Comparisons | Collecting observations | 4 | 72 | 4 | Unavailable | Unavailable | No mature rank |
| HR & Talent | Is it worth it | Collecting observations | 1 | 66 | 4 | Unavailable | Unavailable | No mature rank |
| HR & Talent | News-driven citations | Published | 3 | 608 | 53 | 0.49% | Unavailable | #356 of 1,249 |
| iGaming & Betting | Problem-first research | Collecting observations | 1 | 30 | 1 | Unavailable | Unavailable | No mature rank |
| iGaming & Betting | Top lists | Collecting observations | 1 | 29 | 1 | Unavailable | Unavailable | No mature rank |
| Legacy News Topics | News-driven citations | Published | 3 | 2,138 | 54 | 0.14% | Unavailable | #1,188 of 4,025 |
Published segments: 36. Collecting segments: 9.
Release and boundary
How to cite this profile
NIH (nih.gov), 3.07% citation rate, 485 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/nih.gov.
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.