# Primer.io in the Machine Relations Index

Canonical URL: https://machinerelations.ai/index/domains/primer.io
Canonical domain: primer.io
Source role: Other observed 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.

primer.io appeared as a cited source in 25 of 15,782 monitored answer runs (0.16%) from 2026-05-10 to 2026-09-18.

## Overall Evidence

- Citation rate: 0.16%
- Cited runs: 25 of 15,782
- Days cited: 4 of 125
- Engine breadth: 4 observed engines (chatgpt, claude, gemini, perplexity)
- Confidence: Collecting
- Standing: collecting · 0.16% across 25/15,782 observed runs

## Observed Segments

| Category | Question shape | State | Cited runs | Observed runs | Run dates | Rate | Confidence | Standing |
|---|---|---|---:|---:|---:|---:|---|---|
| [Fintech](https://machinerelations.ai/index/categories/fintech) | [How buyers choose](https://machinerelations.ai/index/categories/fintech/how_choose) | published | 16 | 102 | 7 | 15.69% | Unavailable | #3 of 170 |
| [Fintech](https://machinerelations.ai/index/categories/fintech) | [Is it worth it](https://machinerelations.ai/index/categories/fintech/is_x_worth) | published | 7 | 108 | 7 | 6.48% | Unavailable | #14 of 206 |
| [Fintech](https://machinerelations.ai/index/categories/fintech) | [Top lists](https://machinerelations.ai/index/categories/fintech/top_list) | published | 1 | 102 | 7 | 0.98% | Unavailable | #169 of 200 |
| [iGaming & Betting](https://machinerelations.ai/index/categories/igaming-betting) | [Best tools](https://machinerelations.ai/index/categories/igaming-betting/best_x) | collecting | 1 | 35 | 2 | Unavailable | Unavailable | Collecting observations; no mature rank |

## Citation

Primer.io (primer.io), 0.16% citation rate, 25 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/primer.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.