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Our Methodology

CertSelect ranks certifications using a transparent, weighted, five-criterion method. Every page on the site is graded against this method. We publish the criteria, the weights, and the source data so that any reader — or any auditor — can reproduce our results.

Evaluation criteria

The five criteria below produce a single composite score per certification per market. Weights reflect the relative importance these signals carry for a candidate making a $1,000–$15,000 investment decision over a 12–36 month horizon.

CriterionWeightPrimary inputs
Employer recognition30%DoD 8140 / NICCS / ANSI 17024 / NCSC / RNCP / Bildungsgutschein lists, posted job-ad mentions, vendor-preferred lists
Salary impact25%BLS, ONS, Eurostat, Robert Half, Hays salary surveys
Total 5-year cost20%Vendor exam fees, training partner pricing, recertification fees, CPE/PDU costs
Exam difficulty15%Vendor-published pass rates, community study-hour reports, prerequisite ladder
Career mobility10%BLS O*NET, equivalent EU/UK/AU role-mapping data, adjacent-role count

Data sources

We tier sources by independence and authority.

Every numeric claim on the site has a source URL and a capture date in the underlying dataset (src/data/*.json). Pricing is captured at the issuing-body source and re-checked on a 90-day cadence.

Freshness and version control

Each certification page carries a last updated timestamp. The 90-day capture cadence covers exam fees, recertification fees, and any vendor-announced curriculum or domain-weight changes. Major credential refreshes (for example the July 2026 PMP exam refresh, or the August 2026 PMI fee schedule change from $555 to $675 for non-members) are flagged in the temporal-anchors index of our information layer and rewritten in-place rather than published as duplicate versions.

Conflict-of-interest policy

CertSelect carries affiliate links to course platforms and training partners. Affiliate revenue funds our research time. To prevent that revenue from biasing our rankings, we apply three rules:

  1. Rankings precede partnerships. A certification’s composite score is computed from the criteria above before any affiliate program is consulted. We do not adjust scores after-the-fact when a higher-ranked competitor is or is not in our partner network.
  2. We disclose every affiliate placement. Every outbound CTA is accompanied by an inline disclosure note and the link itself carries rel="sponsored noopener" per Google’s guidance and the FTC’s 2023 endorsement guides.
  3. We surface non-affiliate alternatives. Where a non-affiliated certification scores higher than an affiliated one, we name it. Where a publicly-funded training credit (France’s CPF, Germany’s Bildungsgutschein, US GI Bill) covers a credential, we say so — even when it routes the reader away from our affiliate links.

Correction policy

Found a factual error or a price that has changed? Email [email protected]. We respond within five business days. Confirmed corrections trigger an in-place update with a dated note appended to the page header. Material corrections (rankings movement of three positions or more on a head-term roundup) also carry a note in the article body.

What we explicitly exclude

Version history