# Plainenglish.io in the Machine Relations Index

Canonical URL: https://machinerelations.ai/index/domains/plainenglish.io
Canonical domain: plainenglish.io
Source role: Vendor-owned source
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.

plainenglish.io appeared as a cited source in 16 of 15,782 monitored answer runs (0.10%) from 2026-05-10 to 2026-09-18.

## Overall Evidence

- Citation rate: 0.10%
- Cited runs: 16 of 15,782
- Days cited: 11 of 125
- Engine breadth: 5 observed engines (claude, gemini, google_ai_mode, google_ai_overviews, perplexity)
- Confidence: Collecting
- Standing: collecting · 0.10% across 16/15,782 observed runs

## Observed Segments

| Category | Question shape | State | Cited runs | Observed runs | Run dates | Rate | Confidence | Standing |
|---|---|---|---:|---:|---:|---:|---|---|
| [AI Infrastructure](https://machinerelations.ai/index/categories/ai-infrastructure) | [Best tools](https://machinerelations.ai/index/categories/ai-infrastructure/best_x) | published | 3 | 77 | 7 | 3.90% | Unavailable | #69 of 204 |
| [AI Infrastructure](https://machinerelations.ai/index/categories/ai-infrastructure) | [How buyers choose](https://machinerelations.ai/index/categories/ai-infrastructure/how_choose) | published | 1 | 106 | 7 | 0.94% | Unavailable | #206 of 258 |
| [AI Infrastructure](https://machinerelations.ai/index/categories/ai-infrastructure) | [Problem-first research](https://machinerelations.ai/index/categories/ai-infrastructure/problem_first) | published | 3 | 106 | 7 | 2.83% | Unavailable | #39 of 212 |
| [AI Security & Privacy](https://machinerelations.ai/index/categories/ai-security-privacy) | [Comparisons](https://machinerelations.ai/index/categories/ai-security-privacy/x_vs_y) | published | 3 | 114 | 7 | 2.63% | Unavailable | #74 of 263 |
| [AI Visibility & GEO](https://machinerelations.ai/index/categories/ai-visibility-geo) | [Problem-first research](https://machinerelations.ai/index/categories/ai-visibility-geo/problem_first) | published | 1 | 132 | 7 | 0.76% | Unavailable | #327 of 420 |
| [Legacy News Topics](https://machinerelations.ai/index/categories/legacy-unmapped) | [News-driven citations](https://machinerelations.ai/index/categories/legacy-unmapped/news_topic) | published | 5 | 2,138 | 54 | 0.23% | Unavailable | #758 of 4,025 |

## Citation

Plainenglish.io (plainenglish.io), 0.10% citation rate, 16 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/plainenglish.io.

## Public Boundary

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; it does not measure all AI answers, recommendation quality, website traffic, or commercial performance. A citation does not prove source support, and MRI confidence is not an Answer-Source Fidelity grade.

## Related Sources

- [Machine Relations Index](https://machinerelations.ai/index)
- [Public JSON artifact](https://machinerelations.ai/data/machine-relations-index.json)
- [Release manifest](https://machinerelations.ai/data/mri-release-manifest.json)
- [AuthorityTech publication intelligence projection](https://authoritytech.io/publications.md) — Practitioner projection derived from the neutral Machine Relations Index. It is not source evidence, citation provenance, or sameAs identity for the neutral dataset.