§ The result
3 points separate Dover and Mercer | Mettl.
Dover (Sourcing) edges Mercer | Mettl (Assessment) by 3 points under rubric v1.0, 45 to 42. Dover leads 5 of the 7 criteria, including Bias Audit Transparency, while Mercer | Mettl leads 2, including Article 11 Technical Documentation. The widest raw gap and the heaviest weighted swing fall on different criteria: Human Oversight Design (Dover 58, Mercer | Mettl 45) and Bias Audit Transparency at 18% (Dover 52, Mercer | Mettl 42), the second being 36% of the weighted advantage Dover holds across the 5 criteria on that side of the table.
Vendor profile
Dover
Dover is an AI recruiting platform for startups offering a free applicant tracking system, candidate sourcing via a LinkedIn/Copilot browser extension, OpenAI/Anthropic-powered 0-100 applicant scoring, and a fractional-recruiter marketplace.
Vendor profile
Mercer | Mettl
Mercer | Mettl is an online talent assessment and remote-proctoring platform offering psychometric, aptitude, coding, and skills tests plus AI-assisted exam proctoring and scoring for hiring, certification, and L&D.
§ The record
Dover is filed under Candidate sourcing AI, Mercer | Mettl under Assessment AI. They record no secondary category in common.
Both are in scope of EU AI Act, Colorado AI Act and NYC LL 144. Only Mercer | Mettl is in scope of Illinois HB 3773 and Mobley v. Workday.
| Record | Dover | Mercer | Mettl |
|---|---|---|
| Price tier | Low | Mid |
| Headquarters | US | IN |
| Founded | 2019 | 2010 |
§ What decides it
The criteria that move the gap, heaviest swing first.
18% weight · 27% of the movement so far
Bias Audit Transparency
Dover 52 · Mercer | Mettl 42
1.8 weighted points to Dover
12% weight · 51% of the movement so far
Human Oversight Design
Dover 58 · Mercer | Mettl 45
1.6 weighted points to Dover
20% weight · 63% of the movement so far
Article 11 Technical Documentation
Dover 34 · Mercer | Mettl 38
0.8 weighted points to Mercer | Mettl
15% weight · 75% of the movement so far
Data Governance Disclosure
Dover 50 · Mercer | Mettl 55
0.8 weighted points to Mercer | Mettl
12% weight · 86% of the movement so far
Post-Market Monitoring
Dover 44 · Mercer | Mettl 38
0.7 weighted points to Dover
8% weight · 95% of the movement so far
Customer Documentation
Dover 60 · Mercer | Mettl 52
0.6 weighted points to Dover
15% weight · 100% of the movement so far
FRIA Support
Dover 30 · Mercer | Mettl 28
0.3 weighted points to Dover
Weighted delta is the raw difference times the criterion weight, so the 7 figures above sum to +3.5 — the difference between the two totals before either is rounded. Shares are of 6.6 points of movement counted without direction. The table below rounds each side to a whole number first, so its Δ raw total reads +3 beside that +3.5.
§ Category-by-category
Raw score per criterion, with weighted delta.
Δ is Dover minus Mercer | Mettl.
| Category | Weight | Dover | Mercer | Mettl | Δ raw | Δ weighted |
|---|---|---|---|---|---|
| Article 11 Technical Documentation | 20% | 34 | 38 | -4 | -0.8 |
| Bias Audit Transparency | 18% | 52 | 42 | +10 | +1.8 |
| FRIA Support | 15% | 30 | 28 | +2 | +0.3 |
| Data Governance Disclosure | 15% | 50 | 55 | -5 | -0.8 |
| Human Oversight Design | 12% | 58 | 45 | +13 | +1.6 |
| Post-Market Monitoring | 12% | 44 | 38 | +6 | +0.7 |
| Customer Documentation | 8% | 60 | 52 | +8 | +0.6 |
| Total | 100% | 45 (F) | 42 (F) | +3 | +3.5 |
§ Evidence
Cited sources and documented absences, criterion by criterion.
An absence is a finding, not a blank: the reviewer looked for a named artefact and recorded that it is not located. Where a source sits is a fact about hosting only.
| Criterion | Weight | Dover | Mercer | Mettl | ||||
|---|---|---|---|---|---|---|---|
| Cited | Absences | Audit / hosting | Cited | Absences | Audit / hosting | ||
| Article 11 Technical Documentation | 20% | 1 | 1 | Sources on the vendor's own domain | 2 | 1 | Sources on the vendor's own domain |
| Bias Audit Transparency | 18% | 2 | 0 | Audit reportSources on the vendor's own domain | 0 | 1 | — |
| FRIA Support | 15% | 1 | 1 | Sources on the vendor's own domain | 1 | 1 | — |
| Data Governance Disclosure | 15% | 2 | 1 | Sources on the vendor's own domain | 2 | 0 | Sources on the vendor's own domain |
| Human Oversight Design | 12% | 2 | 0 | Sources on the vendor's own domain | 2 | 0 | Sources on the vendor's own domain |
| Post-Market Monitoring | 12% | 2 | 1 | Sources on the vendor's own domainSources on a separate domain | 1 | 1 | Sources on the vendor's own domain |
| Customer Documentation | 8% | 3 | 0 | Sources on the vendor's own domain | 1 | 1 | Sources on the vendor's own domain |
| All criteria | 100% | 13 | 4 | Audit reportSources on the vendor's own domainSources on a separate domain | 9 | 5 | Sources on the vendor's own domain |
Dover has 17 evidence rows across 7 of 7 criteria — 13 with a source URL, 4 documented absences; Mercer | Mettl has 14 evidence rows across 7 of 7 criteria — 9 with a source URL, 5 documented absences; some documentation or audit rows for Dover sit on a domain separate from the vendor's own site.
Provenance
The scores above are documented by 31 evidence rows on file for these two vendors: 17 for Dover, across 3 distinct source domains, and 14 for Mercer | Mettl, across 2 distinct source domains.
- Rubric
- v1.0
- Dover last reviewed
- July 17, 2026 · HireAIScore editorial team
- Mercer | Mettl last reviewed
- June 7, 2026 · HireAIScore editorial team
HireAIScore scores are editorial research, not legal advice, and no vendor pays for placement, scoring or removal — see the methodology, conflicts policy and terms.
§ Where next