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Certbot fails across several hostnames with unclear errors

Certbot fails for several hostnames at once with AAAA and timeout errors, and the messages do not show which fix applies to which name.

Tier II · Emerging Problems that are still building up.

5 public reports · first reported 27 August 2026 · last reported 27 August 2026

Idea report · $9 · No contacts · All sales final

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What's going wrong

When one Certbot command requests certificates for several hostnames at once, the run can fail with AAAA record complaints and connection timeouts, and the messages do not say which hostname needs which fix.

AI-assisted: written with the help of AI from the reports. The idea report has the full summary.

In the idea report

  • The full summary.
  • The products the 5 reports are about, and how many came each month.
  • Related problems.

No business has been found with this problem yet, so the report has no contacts. All sales are final — no refunds. Pricing.