# RubyGems.org: Major incident: Elevated DNS Errors

**Summary:** _summary pending_
## Part of an outage event

- [Cloudflare outage, Jul 17, 2020: 24 vendors, 24 incidents](https://rewindex.com/events/2020-07-17-cloudflare)
- This incident started in the same window without naming Cloudflare (timing only, not evidence of a link). (timing only, posted +21 min vs the first vendor naming Cloudflare)

```mermaid
flowchart LR
  root["Cloudflare<br/>own incident not archived"]:::inferred
  h1["Within an hour<br/>6 vendors, 6 blamed Cloudflare<br/>Sigma Computing, WorkOS, Doppler, Linode (Akamai) +2"]:::blames
  root --> h1
  h4["1 to 4 hours later<br/>1 vendor, 1 blamed Cloudflare<br/>Hotjar"]:::blames
  root --> h4
  me["RubyGems.org (this incident)<br/>posted +21 min"]:::me
  root -.->|"same window"| me
```

_Detected automatically from incidents that started together and named the same provider; a link means one incident named another vendor, not a confirmed cause._

- Kind: Major incident · Label: major (vendor)
- Changed: 2020-07-17 21:20 UTC · Detected: 2026-10-19 17:33 UTC
- [Source: http://stspg.io/6wlgr1xl9jln](http://stspg.io/6wlgr1xl9jln)
- [Company: RubyGems.org](https://rewindex.com/company/rubygems.md)
- Versions: before (none: first archived) → after incident\_version:701/yz78p74tbrfq@dc98d1c83bc0
- Change 1 of 1 for this incident

Incident page (full timeline): [Elevated DNS Errors](https://rewindex.com/company/rubygems/incidents/yz78p74tbrfq.md)
## What changed

**1. Added: Title**

```diff
+ Elevated DNS Errors
```

**2. Added: Impact**

```diff
+ major
```

**3. Added: Status**

```diff
+ resolved
```

**4. Added: Start time**

```diff
+ 2020-07-17 21:20 UTC
```

**5. Added: Resolved time**

```diff
+ 2020-07-17 22:01 UTC
```

**6. Added: Affected components**

```diff
+ Application, Dependency API, Gem Downloads, Gem Index API, Upstream Provider: DNSimple Name Servers
```

**7. Added: Update** (investigating) · 2020-07-17 21:20 UTC

```diff
+ We're experiencing an elevated level of DNS errors and are currently looking into the issue.
```

**8. Added: Update** (monitoring) · 2020-07-17 21:42 UTC

```diff
+ DNS seems to be resolving again. We continue to monitor the situation.
```

**9. Added: Update** (monitoring) · 2020-07-17 21:53 UTC

```diff
+ We are continuing to monitor for any further issues.
```

**10. Added: Update** (resolved) · 2020-07-17 22:01 UTC

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

## History of this incident

| When (UTC) | Change | Label |
| --- | --- | --- |
| 2020-07-17 21:20 UTC | Major incident: Elevated DNS Errors (this change) | major |

All RubyGems.org changes: [timeline](https://rewindex.com/company/rubygems/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._


---
Canonical: https://rewindex.com/change/ia4b43f31aec6bc · Markdown: https://rewindex.com/change/ia4b43f31aec6bc.md · JSON: https://rewindex.com/api/v1/changes/ia4b43f31aec6bc · Generated 2026-10-20T00:00:44.808Z