# DNSimple: Major incident: URL Redirector outage for HTTPS sources

**Summary:** _summary pending_
- Kind: Major incident · Label: major (vendor)
- Changed: 2025-08-21 11:25 UTC · Detected: 2026-10-19 18:33 UTC
- [Source: https://stspg.io/qv02js8lg163](https://stspg.io/qv02js8lg163)
- [Company: DNSimple](https://rewindex.com/company/dnsimple.md)
- Versions: before (none: first archived) → after incident\_version:732/z4wmsf695xwb@92c30803e6a5
- Change 1 of 1 for this incident

Incident page (full timeline): [URL Redirector outage for HTTPS sources](https://rewindex.com/company/dnsimple/incidents/z4wmsf695xwb.md)
## What changed

**1. Added: Title**

```diff
+ URL Redirector outage for HTTPS sources
```

**2. Added: Impact**

```diff
+ major
```

**3. Added: Status**

```diff
+ resolved
```

**4. Added: Start time**

```diff
+ 2025-08-21 11:25 UTC
```

**5. Added: Resolved time**

```diff
+ 2025-08-21 12:30 UTC
```

**6. Added: Affected components**

```diff
+ URL Redirector
```

**7. Added: Update** (identified) · 2025-08-21 11:25 UTC

```diff
+ We have identified an issue with the SSL chain that our Redirector service uses for the most recent Let's Encrypt SSL certificates. This issue only impacts domains with URL redirects with HTTPS sources and SSL certificates issued from August 20th onwards. This issue doesn't impact URL redirects with HTTP sources. Our team is actively engaged and will release a fixed certificate chain momentarily.
```

**8. Added: Update** (monitoring) · 2025-08-21 11:57 UTC

```diff
+ A fix has been implemented and we are monitoring the results.
```

**9. Added: Update** (resolved) · 2025-08-21 12:30 UTC

```diff
+ This incident has been resolved.
```

## History of this incident

| When (UTC) | Change | Label |
| --- | --- | --- |
| 2025-08-21 11:25 UTC | Major incident: URL Redirector outage for HTTPS sources (this change) | major |

All DNSimple changes: [timeline](https://rewindex.com/company/dnsimple/changes.md)
_Diff excerpts are shown on normalized text: dates, counters and tokens appear as ‹date›, ‹count›, ‹tok›; noise-only edits are hidden. Rewindex shows the changed passages, not a copy of the page._


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Canonical: https://rewindex.com/change/i96bbc9ae0a83a0 · Markdown: https://rewindex.com/change/i96bbc9ae0a83a0.md · JSON: https://rewindex.com/api/v1/changes/i96bbc9ae0a83a0 · Generated 2026-10-19T23:13:35.898Z