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Attributed metadata history

REPORTPUBLIC METADATA

10 Years of Let's Encrypt Certificates

On September 14, 2015, our first publicly-trusted certificate went live. We were proud that we had issued a certificate that a significant majority of clients could accept, and had done it using automated software. Of course, in retrospect this was just the first of billions of certificates. Today, Let’s Encrypt is the largest certificate authority in the world in terms of certificates issued, the

Reference details

Source category
Research & news
Report title
10 Years of Let's Encrypt Certificates
First reported
Dec 09, 2025 00:00 UTC
Last reported
Dec 09, 2025 00:00 UTC
Catalog updated
Oct 08, 2026 03:47 UTC
Record ID
a6de0d266d74bb72c100994480c1d70bd7da14fe87d6660fa5a5daa58c1b78fa

Published indicators

Network indicators are visibly defanged. This page does not make them clickable or send them to another service.

No validated file hashes or network indicators are stored for this record.

Source observations

src_823f7b237762257237

Source-provided label
Not reported
Evidence class
mentioned in report
Confidence
Not reported
Observed
Dec 09, 2025 00:00 UTC
Retrieved
Oct 08, 2026 03:47 UTC

This record contains metadata and attribution only. It does not host, download, unpack, render, or execute malware samples.

Feed collection status

Sources represented on this page. Publication and observation dates describe the content; successful batch dates describe local collection. A recent batch does not certify complete coverage or current provider availability.

1 sources: 0 stale, 0 needing attention, 0 paused, 1 unverified.

Review source update dates and status
  • src_823f7b237762257237Collection status unverifiedLast successful batch: Unverified

Stale means older than twice the recorded collection interval, with a minimum of one hour; without an interval, the threshold is 24 hours. Cached content remains available while a feed is stale, paused, or unverified.