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Welcome to Let's Encrypt Community Support
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1
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88026
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August 7, 2015
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Safari won't trust Let's Encrypt certs
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5
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14
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April 15, 2026
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CNAME and CAA clarification
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6
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36
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April 15, 2026
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Win-Acme Renewal Failing Suddenly with DNS-01 (Dreamhost)
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6
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32
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April 15, 2026
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Certbot failed to authenticate some domains
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10
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68
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April 15, 2026
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ARI renewal-info Rate Limit Changes?
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10
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157
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April 15, 2026
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Does Certbot support CNAME challenge? How does CNAME validation work vs DNS-01?
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2
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33
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April 15, 2026
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My certicate is obsokete
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13
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57
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April 15, 2026
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Expired certs - auto-renew or manual
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20
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245
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April 15, 2026
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Possible deliberate publicly admitted violation of subscriber policy by Tom Murphy VII in the form of HTTPV
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8
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199
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April 14, 2026
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Error auto renewing my ssl certificate
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12
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133
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April 14, 2026
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Certificate renewal issue: OpenSSL legacy provider failed to load @ FreeBSD amd64
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2
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83
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April 14, 2026
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Failed to validate ownership of domainName
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5
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65
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April 13, 2026
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Minor DNSSEC validation change
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1
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251
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April 13, 2026
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Choice of key size for LE certificate authorities
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5
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132
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April 13, 2026
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Request: clientAuth EKU and R10/R11 issuing CA for monara.ch (bLink / SIX Group onboarding)
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5
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121
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April 13, 2026
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Incorrect TXT Record
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13
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80
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April 13, 2026
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Getting an email when certificates are about to expire
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3
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88
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April 12, 2026
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Let's Encrypt stats, breakdown by signature algorithm
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22
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459
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April 12, 2026
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My site has a B rating because of certificate "chain issues"
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2
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113
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April 11, 2026
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Roadmap request (redux): Post-quantum cryptography
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11
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323
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April 10, 2026
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CNAME validation
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7
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91
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April 10, 2026
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Missing accounturi field in LE dns-persist-01 challenges
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2
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97
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April 9, 2026
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Dns-persist-01 deployment status and timeline
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3
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175
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April 9, 2026
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Problem obtaining a certificate
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3
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111
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April 9, 2026
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One cert failing to renew - don't know why
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7
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77
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April 9, 2026
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Failure to retrieve TXT records with RFC2136 DNS challenge
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11
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283
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April 9, 2026
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Issue (apparently) after upgrading certbot/ubuntu
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2
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62
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April 9, 2026
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Certbot nginx challenge times out
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8
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93
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April 8, 2026
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Expressway ACME Certificate Renewal failing
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8
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77
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April 8, 2026
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