HTTP-01 challenges intermittently fail from one vantage
HTTP-01 validation intermittently times out from one certificate authority vantage point while other requests succeed.
Tier II · Emerging Problems that are still building up.
4 public reports · first reported 30 September 2026 · last reported 1 October 2026
What's going wrong
Operators of websites behind a reverse proxy see renewals succeed on some days and fail on others, with a timeout reported from one validation location while the same challenge succeeds from another.
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 4 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.