# Substack: Issue with reported open rates

> Substack status incident “Issue with reported open rates” on 2026-03-27: impact none (vendor’s label), 45 d, 2 update(s). Archived by Rewindex.

Canonical: https://rewindex.com/company/substack/incidents/3qhm6lvk4x2p
Last updated: 2026-05-11T17:55:59Z

- Impact (vendor’s label): none
- Status: resolved
- Started: 2026-03-27 22:20 UTC · Resolved: 2026-05-11 17:55 UTC · Duration: 45 d
- Updates: 2 · Affected components: Email delivery
- [Vendor status page: https://stspg.io/gfd9nywqt1hf](https://stspg.io/gfd9nywqt1hf)
- [Company: Substack](https://rewindex.com/company/substack.md)

## Timeline of updates

- **investigating** 2026-03-27 22:20 UTC: We’re investigating an issue affecting reported open rates for some publishers. Current evidence suggests this is related to how Gmail loads tracking pixels, and does not indicate a change in engagement or deliverability. We take responsibility for ensuring these metrics are accurate and are prioritizing improvements to our open rate tracking so this is resolved as quickly as possible. We will continue to provide updates here as we learn more.
- **resolved** 2026-05-11 17:55 UTC: This incident has been resolved.

## Cite this

Status incident (vendor impact label: none) posted by Substack, started 2026-03-27 22:20 UTC, resolved after 45 d, 2 update(s).

- Canonical URL: https://rewindex.com/company/substack/incidents/3qhm6lvk4x2p
- Citation: Substack, “Issue with reported open rates” (2026-03-27 22:20 UTC). Archived by Rewindex: https://rewindex.com/company/substack/incidents/3qhm6lvk4x2p (CC BY 4.0).
- Markdown link: `[Substack: Issue with reported open rates (2026-03-27)](https://rewindex.com/company/substack/incidents/3qhm6lvk4x2p)`


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Canonical: https://rewindex.com/company/substack/incidents/3qhm6lvk4x2p · Markdown: https://rewindex.com/company/substack/incidents/3qhm6lvk4x2p.md · JSON: https://rewindex.com/api/v1/companies/substack/incidents/3qhm6lvk4x2p · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-11-05T15:21:34.014Z