Corrections

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By Certalyze Research Desk Automated Research & Source Audit
Reviewed by Certalyze Source Audit Updated 2026-04-26

Every material correction we make to published data ends up here, with date, what was wrong, what we changed it to, and what triggered the update. If a number on this site has ever been wrong, you should be able to find the trail.

Why we publish a corrections log

Most sites quietly edit and move on. We think readers deserve the opposite: a visible record that shows we treat accuracy as ongoing work. It's also a commitment device — publishing a public log makes it harder for us to get sloppy.

What counts as a correction

Minor typo fixes and cosmetic edits are not logged.

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Correction history

  1. Methodology Per-field source verification
    Previous Sources cited at the page level (category only)
    Updated Every numeric claim now mapped to a specific URL and checkedAt date

    Page-level citations made it impossible to verify individual data points. Reader trust requires per-field provenance.

  2. CompTIA Cloud+ vs AWS Cloud Practitioner Verdict — pass rate and job listings figures
    Previous Verdict claimed AWS CP "high pass rate (82%)" and "4x the job listings (32K vs 8K)"
    Updated Verdict now reads "high pass rate (90%)" and "roughly 3.5x the job listings (22K vs 6.2K)" — matching the data displayed in the comparison cards

    Internal consistency. The verdict numbers were misaligned with the per-cert data shown on the same page (passRate=90, jobListings 22000 and 6200). Aligning them removes a confusing discrepancy a reader would catch immediately.

    Source: Internal audit triggered by GSC top-impressions review (this page had 51 impressions in the 28-day window).

  3. CompTIA Security+ vs ISC2 SSCP Verdict — job listings figures
    Previous Verdict claimed Security+ had "45K listings vs 8K for SSCP"
    Updated Verdict now reads "roughly 3x more active listings in the data set (38K vs 12K)" — matching the data shown in the comparison cards (Security+ jobListings=38000, SSCP jobListings=12000)

    Internal consistency. Verdict had 45K/8K claim while data shows 38K/12K (real ratio 3.17x, not the implied 5.6x). Detected during pre-audit structural sanity check while opening the security-plus-vs-sscp cluster.

    Source: Pre-audit structural sanity check per CLAUDE.md §11.bis.A.

  4. 9 comparison pages — verdict/FAQ numeric figures Verdict / FAQ numeric claims out of sync with structured data
    Previous Verdict or FAQ on these 9 pages stated job-listing or ratio figures that did not match the data shown in their own comparison cards: aws-data-engineer-vs-gcp-data-engineer ("18K vs 14K"), az400-vs-aws-devops ("28K vs 25K"), ccna-vs-network-plus ("2.5x"), data-plus-vs-aws-cloud-practitioner ("35K vs 12K"), docker-dca-vs-terraform ("30K vs 15K"), gsec-vs-security-plus FAQ ("$22K higher salary"), linux-plus-vs-aws-saa ("42K vs 14K"), pmp-vs-itil FAQ ("5x"), psm-vs-pmi-acp ("3x more")
    Updated Each verdict/FAQ now uses figures consistent with the data shown on the same page. Examples: "18K vs 14K" → "roughly 22K vs 8.5K"; "2.5x" → "roughly 1.25x"; "5x" → "roughly 2.3x". Numbers are still aggregate estimates, not externally verified — the disclaimer pattern-generated remains where applicable.

    Internal consistency. The expanded numeric-contradiction-check (validator) detected 9 cases where the verbal claim diverged >30% from the per-cert data on the same page. None constituted entity mismatch (the certs being compared were correct), only numeric discrepancies in the wording.

    Source: Validator numeric-contradiction-check expanded per ChatGPT debate ronda 10. Patterns added: direct "X vs Y" comparisons, ratio claims (Nx, N times), salary/listing diff claims, market-share % without source.

  5. AWS Solutions Architect Associate vs Google Cloud Associate Cloud Engineer Verdict + FAQ — job listings, salary numbers
    Previous Verdict claimed "68K job listings vs 25K for GCP ACE" and "$135K vs $115K" salary. FAQ also stated "AWS SAA averages $135K vs GCP ACE's $115K"
    Updated Verdict now reads "roughly 3.5x more active job listings (42K vs 12K)" and "roughly $15K difference ($130K vs $115K)" — matching the data shown in the comparison cards (AWS SAA salaryAvg=130000 jobListings=42000; GCP ACE salaryAvg=115000 jobListings=12000). FAQ updated correspondingly to $130K.

    Internal consistency. Verdict numbers diverged from data significantly (68K claim vs 42K real, 25K claim vs 12K real, $135K claim vs $130K real). The 42K/12K ratio is 3.5x while the 68K/25K claim implied 2.7x — directionally similar but factually wrong.

    Source: Pre-audit structural sanity check before opening the cluster aws-saa-vs-gcp-ace per the methodology codified in CLAUDE.md §11.bis.A.

  6. PMP vs PSM I (CSM) Verdict — salary gap and job listings ratio
    Previous Verdict claimed PMP had a "$10K higher average salary ($115K vs $105K)" and "10K more job listings (40K vs 30K)"
    Updated Verdict now reads "roughly $15K higher average salary ($120K vs $105K)" and "nearly 2x more active job listings in the data set (42K vs 22K)" — matching the per-cert data shown on the same page (PMP salaryAvg=120000, PSM I salaryAvg=105000; PMP jobListings=42000, PSM I jobListings=22000)

    Internal consistency. The verdict numbers were misaligned with the per-cert data shown in the comparison cards. Detected by the new numeric-contradiction-check the validator gained in commit 5539eb5; the discrepancy was >30% on both figures.

    Source: Internal validator detection.

  7. Microsoft Power BI (PL-300) vs CompTIA Data+ Verdict — job listings ratio
    Previous Verdict claimed Power BI PL-300 had "3.5x more job listings (42K vs 12K)" than Data+
    Updated Verdict now reads "roughly 1.9x more active job listings in the data set (28K vs 15K)" — matching the per-cert data shown on the same page (PL-300 jobListings=28000, Data+ jobListings=15000)

    Internal consistency. The verdict overstated the gap (3.5x claimed vs 1.87x actual). Detected by the numeric-contradiction-check.

    Source: Internal validator detection.

  8. AWS Cloud Practitioner vs GCP Cloud Digital Leader Entity mismatch — page title named the wrong certification
    Previous The page was titled "AWS Cloud Practitioner vs GCP Cloud Digital Leader" but the internal slug, structured data, and verdict actually referenced GCP Associate Cloud Engineer (a different certification). The verdict additionally contained numbers (3.5x job listings, "$5K higher salary AWS") that did not match the data displayed in the comparison cards (1.83x ratio, GCP +$30K).
    Updated The page has been corrected to "AWS Cloud Practitioner vs GCP Associate Cloud Engineer" — the certification it was actually comparing all along — at a new URL. The old URL 301-redirects to the new one. The verdict and FAQs were rewritten to reflect the actual data and to clarify that these two certifications are not equivalent levels (Cloud Practitioner is foundational; Associate Cloud Engineer is associate-level and hands-on).

    Entity mismatch + internal consistency correction. The previous page was actively incorrect, not just imprecise: it presented a foundational/Cloud Digital Leader framing for a certification (Associate Cloud Engineer) that is at a different level and tests different skills. We do not declare this verified or hand-curated; the page now correctly identifies the certification it references, but per-field source audit is pending.

    Source: Internal pre-audit structural sanity check while preparing the source audit for the AWS CP vs GCP cluster.

Corrections log last reviewed 2026-04-26. See also our methodology.