letsencrypt.org

The available scan data is broadly reassuring. At the time of this scan, 0 out of 91 security engines flagged the domain, and the domain was categorized by multiple web-classification providers as a technology or information-security website. In addition, the checked threat and blacklist databases did not report the domain as phishing, malware-hosting, or otherwise blocked.

One malware scan did produce a generic "suspicious" result and flagged a number of internal pages and a few referenced links/domains with generic heuristic labels. However, these detections appear to be low-confidence pattern matches rather than corroborated malware findings, especially because they were not supported by the broader engine consensus and the domain is long-established, highly ranked, and clearly associated with a legitimate nonprofit certificate authority.

Based on available data, no threats were detected at the time of this scan. The isolated heuristic findings may warrant routine caution, but they do not appear to outweigh the stronger clean signals from the wider scan results.