dnsprobe v1
cached probe / public landing

DNS & SSL for letsencrypt.org

Last probed 1 hour ago. Use "re-check now" to refresh.

probe.2026102009
probe result / letsencrypt.org cached 1 hour ago · 6341ms
letsencrypt.org → · share:
A record [WARN] partial
STATUSRESOLVERIPVALUELATENCY
[OK] Cloudflare 1.1.1.1
98.84.224.111 18.208.88.157
0ms
[OK] Cloudflare 2 1.0.0.1
35.157.26.135 63.176.8.218
0ms
[OK] Google 8.8.8.8
63.176.8.218 35.157.26.135
0ms
[OK] Google 2 8.8.4.4
35.157.26.135 63.176.8.218
0ms
[OK] Quad9 9.9.9.9
63.176.8.218 35.157.26.135
31ms
[OK] OpenDNS 208.67.222.222
35.157.26.135 63.176.8.218
0ms
[OK] DNS.Watch 84.200.69.80
98.84.224.111 18.208.88.157
0ms
[OK] Yandex 77.88.8.8
35.157.26.135 63.176.8.218
0ms
[OK] Comodo 8.26.56.26
98.84.224.111 18.208.88.157
0ms
[OK] Verisign 64.6.64.6
35.157.26.135 63.176.8.218
0ms
[OK] Hurricane Electric 74.82.42.42
35.157.26.135 63.176.8.218
0ms
[OK] AdGuard 94.140.14.14
35.157.26.135 63.176.8.218
0ms
AAAA record [WARN] partial
STATUSRESOLVERIPVALUELATENCY
[OK] Cloudflare 1.1.1.1
2a05:d014:58f:6200::259 2a05:d014:58f:6200::258
0ms
[OK] Cloudflare 2 1.0.0.1
2a05:d014:58f:6200::259 2a05:d014:58f:6200::258
0ms
[OK] Google 8.8.8.8
2a05:d014:58f:6200::259 2a05:d014:58f:6200::258
0ms
[OK] Google 2 8.8.4.4
2a05:d014:58f:6200::259 2a05:d014:58f:6200::258
0ms
[OK] Quad9 9.9.9.9
2a05:d014:58f:6200::258 2a05:d014:58f:6200::259
0ms
[OK] OpenDNS 208.67.222.222
2a05:d014:58f:6200::258 2a05:d014:58f:6200::259
0ms
[OK] DNS.Watch 84.200.69.80
;; communications error to 84.200.69.80#53: timed out ;; no servers could be reached
2877ms
[OK] Yandex 77.88.8.8
2a05:d014:58f:6200::259 2a05:d014:58f:6200::258
0ms
[OK] Comodo 8.26.56.26
2a05:d014:58f:6200::259 2a05:d014:58f:6200::258
0ms
[OK] Verisign 64.6.64.6
2a05:d014:58f:6200::259 2a05:d014:58f:6200::258
0ms
[OK] Hurricane Electric 74.82.42.42
2a05:d014:58f:6200::258 2a05:d014:58f:6200::259
0ms
[OK] AdGuard 94.140.14.14
2a05:d014:58f:6200::259 2a05:d014:58f:6200::258
0ms
MX record [WARN] partial
STATUSRESOLVERIPVALUELATENCY
[OK] Cloudflare 1.1.1.1
1 aspmx.l.google.com. 10 aspmx2.googlemail.com. 10 aspmx3.googlemail.com. 5 alt1.aspmx.l.google.com. 5 alt2.aspmx.l.google.com.
0ms
[OK] Cloudflare 2 1.0.0.1
1 aspmx.l.google.com. 10 aspmx2.googlemail.com. 10 aspmx3.googlemail.com. 5 alt1.aspmx.l.google.com. 5 alt2.aspmx.l.google.com.
0ms
[OK] Google 8.8.8.8
10 aspmx3.googlemail.com. 1 aspmx.l.google.com. 10 aspmx2.googlemail.com. 5 alt1.aspmx.l.google.com. 5 alt2.aspmx.l.google.com.
0ms
[OK] Google 2 8.8.4.4
10 aspmx2.googlemail.com. 5 alt1.aspmx.l.google.com. 10 aspmx3.googlemail.com. 1 aspmx.l.google.com. 5 alt2.aspmx.l.google.com.
0ms
[OK] Quad9 9.9.9.9
;; communications error to 9.9.9.9#53: timed out ;; no servers could be reached
11ms
[OK] OpenDNS 208.67.222.222
1 aspmx.l.google.com. 5 alt1.aspmx.l.google.com. 5 alt2.aspmx.l.google.com. 10 aspmx2.googlemail.com. 10 aspmx3.googlemail.com.
0ms
[OK] DNS.Watch 84.200.69.80
;; communications error to 84.200.69.80#53: timed out ;; no servers could be reached
5ms
[OK] Yandex 77.88.8.8
5 alt1.aspmx.l.google.com. 10 aspmx3.googlemail.com. 1 aspmx.l.google.com. 5 alt2.aspmx.l.google.com. 10 aspmx2.googlemail.com.
0ms
[OK] Comodo 8.26.56.26
10 aspmx2.googlemail.com. 10 aspmx3.googlemail.com. 5 alt1.aspmx.l.google.com. 5 alt2.aspmx.l.google.com. 1 aspmx.l.google.com.
0ms
[OK] Verisign 64.6.64.6
5 alt1.aspmx.l.google.com. 5 alt2.aspmx.l.google.com. 1 aspmx.l.google.com. 10 aspmx2.googlemail.com. 10 aspmx3.googlemail.com.
0ms
[OK] Hurricane Electric 74.82.42.42
5 alt1.aspmx.l.google.com. 5 alt2.aspmx.l.google.com. 10 aspmx2.googlemail.com. 1 aspmx.l.google.com. 10 aspmx3.googlemail.com.
0ms
[OK] AdGuard 94.140.14.14
10 aspmx2.googlemail.com. 10 aspmx3.googlemail.com. 5 alt1.aspmx.l.google.com. 5 alt2.aspmx.l.google.com. 1 aspmx.l.google.com.
0ms
TXT record [OK] propagated
STATUSRESOLVERIPVALUELATENCY
[OK] Cloudflare 1.1.1.1
"anthropic-domain-verification-eer9ky=uy5e3EOy8j15k1u9UesevyP1N" "pardot1011011=d160caff32c4415bb46bb82d8c50e5bea7ea1a74f5a149cb96bd952467266044" "sending_domain1011011=f98c68e7636a708a1987c7b9da300d64a354041fa41ea2039fbb02bc18c4ed0f" "v=spf1 include:_spf.google.com ip4:23.178.112.0/24 ip4:66.133.109.36 ip4:64.78.152.132 include:mail.zendesk.com include:_spf.intacct.com -all"
0ms
[OK] Cloudflare 2 1.0.0.1
"anthropic-domain-verification-eer9ky=uy5e3EOy8j15k1u9UesevyP1N" "pardot1011011=d160caff32c4415bb46bb82d8c50e5bea7ea1a74f5a149cb96bd952467266044" "sending_domain1011011=f98c68e7636a708a1987c7b9da300d64a354041fa41ea2039fbb02bc18c4ed0f" "v=spf1 include:_spf.google.com ip4:23.178.112.0/24 ip4:66.133.109.36 ip4:64.78.152.132 include:mail.zendesk.com include:_spf.intacct.com -all"
0ms
[OK] Google 8.8.8.8
"pardot1011011=d160caff32c4415bb46bb82d8c50e5bea7ea1a74f5a149cb96bd952467266044" "v=spf1 include:_spf.google.com ip4:23.178.112.0/24 ip4:66.133.109.36 ip4:64.78.152.132 include:mail.zendesk.com include:_spf.intacct.com -all" "sending_domain1011011=f98c68e7636a708a1987c7b9da300d64a354041fa41ea2039fbb02bc18c4ed0f" "anthropic-domain-verification-eer9ky=uy5e3EOy8j15k1u9UesevyP1N"
0ms
[OK] Google 2 8.8.4.4
"anthropic-domain-verification-eer9ky=uy5e3EOy8j15k1u9UesevyP1N" "sending_domain1011011=f98c68e7636a708a1987c7b9da300d64a354041fa41ea2039fbb02bc18c4ed0f" "pardot1011011=d160caff32c4415bb46bb82d8c50e5bea7ea1a74f5a149cb96bd952467266044" "v=spf1 include:_spf.google.com ip4:23.178.112.0/24 ip4:66.133.109.36 ip4:64.78.152.132 include:mail.zendesk.com include:_spf.intacct.com -all"
0ms
[OK] Quad9 9.9.9.9
"anthropic-domain-verification-eer9ky=uy5e3EOy8j15k1u9UesevyP1N" "pardot1011011=d160caff32c4415bb46bb82d8c50e5bea7ea1a74f5a149cb96bd952467266044" "sending_domain1011011=f98c68e7636a708a1987c7b9da300d64a354041fa41ea2039fbb02bc18c4ed0f" "v=spf1 include:_spf.google.com ip4:23.178.112.0/24 ip4:66.133.109.36 ip4:64.78.152.132 include:mail.zendesk.com include:_spf.intacct.com -all"
0ms
[OK] OpenDNS 208.67.222.222
"anthropic-domain-verification-eer9ky=uy5e3EOy8j15k1u9UesevyP1N" "pardot1011011=d160caff32c4415bb46bb82d8c50e5bea7ea1a74f5a149cb96bd952467266044" "sending_domain1011011=f98c68e7636a708a1987c7b9da300d64a354041fa41ea2039fbb02bc18c4ed0f" "v=spf1 include:_spf.google.com ip4:23.178.112.0/24 ip4:66.133.109.36 ip4:64.78.152.132 include:mail.zendesk.com include:_spf.intacct.com -all"
0ms
[OK] DNS.Watch 84.200.69.80
"pardot1011011=d160caff32c4415bb46bb82d8c50e5bea7ea1a74f5a149cb96bd952467266044" "sending_domain1011011=f98c68e7636a708a1987c7b9da300d64a354041fa41ea2039fbb02bc18c4ed0f" "v=spf1 include:_spf.google.com ip4:23.178.112.0/24 ip4:66.133.109.36 ip4:64.78.152.132 include:mail.zendesk.com include:_spf.intacct.com -all" "anthropic-domain-verification-eer9ky=uy5e3EOy8j15k1u9UesevyP1N"
0ms
[OK] Yandex 77.88.8.8
"sending_domain1011011=f98c68e7636a708a1987c7b9da300d64a354041fa41ea2039fbb02bc18c4ed0f" "anthropic-domain-verification-eer9ky=uy5e3EOy8j15k1u9UesevyP1N" "pardot1011011=d160caff32c4415bb46bb82d8c50e5bea7ea1a74f5a149cb96bd952467266044" "v=spf1 include:_spf.google.com ip4:23.178.112.0/24 ip4:66.133.109.36 ip4:64.78.152.132 include:mail.zendesk.com include:_spf.intacct.com -all"
0ms
[OK] Comodo 8.26.56.26
"pardot1011011=d160caff32c4415bb46bb82d8c50e5bea7ea1a74f5a149cb96bd952467266044" "sending_domain1011011=f98c68e7636a708a1987c7b9da300d64a354041fa41ea2039fbb02bc18c4ed0f" "v=spf1 include:_spf.google.com ip4:23.178.112.0/24 ip4:66.133.109.36 ip4:64.78.152.132 include:mail.zendesk.com include:_spf.intacct.com -all" "anthropic-domain-verification-eer9ky=uy5e3EOy8j15k1u9UesevyP1N"
0ms
[OK] Verisign 64.6.64.6
"sending_domain1011011=f98c68e7636a708a1987c7b9da300d64a354041fa41ea2039fbb02bc18c4ed0f" "v=spf1 include:_spf.google.com ip4:23.178.112.0/24 ip4:66.133.109.36 ip4:64.78.152.132 include:mail.zendesk.com include:_spf.intacct.com -all" "anthropic-domain-verification-eer9ky=uy5e3EOy8j15k1u9UesevyP1N" "pardot1011011=d160caff32c4415bb46bb82d8c50e5bea7ea1a74f5a149cb96bd952467266044"
0ms
[OK] Hurricane Electric 74.82.42.42
"sending_domain1011011=f98c68e7636a708a1987c7b9da300d64a354041fa41ea2039fbb02bc18c4ed0f" "pardot1011011=d160caff32c4415bb46bb82d8c50e5bea7ea1a74f5a149cb96bd952467266044" "anthropic-domain-verification-eer9ky=uy5e3EOy8j15k1u9UesevyP1N" "v=spf1 include:_spf.google.com ip4:23.178.112.0/24 ip4:66.133.109.36 ip4:64.78.152.132 include:mail.zendesk.com include:_spf.intacct.com -all"
0ms
[OK] AdGuard 94.140.14.14
"pardot1011011=d160caff32c4415bb46bb82d8c50e5bea7ea1a74f5a149cb96bd952467266044" "sending_domain1011011=f98c68e7636a708a1987c7b9da300d64a354041fa41ea2039fbb02bc18c4ed0f" "v=spf1 include:_spf.google.com ip4:23.178.112.0/24 ip4:66.133.109.36 ip4:64.78.152.132 include:mail.zendesk.com include:_spf.intacct.com -all" "anthropic-domain-verification-eer9ky=uy5e3EOy8j15k1u9UesevyP1N"
0ms
NS record [WARN] partial
STATUSRESOLVERIPVALUELATENCY
[OK] Cloudflare 1.1.1.1
owen.ns.cloudflare.com. vera.ns.cloudflare.com.
0ms
[OK] Cloudflare 2 1.0.0.1
owen.ns.cloudflare.com. vera.ns.cloudflare.com.
0ms
[OK] Google 8.8.8.8
vera.ns.cloudflare.com. owen.ns.cloudflare.com.
0ms
[OK] Google 2 8.8.4.4
vera.ns.cloudflare.com. owen.ns.cloudflare.com.
0ms
[OK] Quad9 9.9.9.9
;; communications error to 9.9.9.9#53: timed out ;; no servers could be reached
32ms
[OK] OpenDNS 208.67.222.222
owen.ns.cloudflare.com. vera.ns.cloudflare.com.
0ms
[OK] DNS.Watch 84.200.69.80
vera.ns.cloudflare.com. owen.ns.cloudflare.com.
0ms
[OK] Yandex 77.88.8.8
vera.ns.cloudflare.com. owen.ns.cloudflare.com.
0ms
[OK] Comodo 8.26.56.26
vera.ns.cloudflare.com. owen.ns.cloudflare.com.
0ms
[OK] Verisign 64.6.64.6
vera.ns.cloudflare.com. owen.ns.cloudflare.com.
0ms
[OK] Hurricane Electric 74.82.42.42
owen.ns.cloudflare.com. vera.ns.cloudflare.com.
0ms
[OK] AdGuard 94.140.14.14
vera.ns.cloudflare.com. owen.ns.cloudflare.com.
0ms
CNAME record [WARN] partial
STATUSRESOLVERIPVALUELATENCY
[--] Cloudflare 1.1.1.1 — no answer 0ms
[--] Cloudflare 2 1.0.0.1 — no answer 0ms
[--] Google 8.8.8.8 — no answer 0ms
[--] Google 2 8.8.4.4 — no answer 0ms
[--] Quad9 9.9.9.9 — no answer 0ms
[--] OpenDNS 208.67.222.222 — no answer 0ms
[OK] DNS.Watch 84.200.69.80
;; communications error to 84.200.69.80#53: timed out ;; no servers could be reached
12ms
[--] Yandex 77.88.8.8 — no answer 0ms
[--] Comodo 8.26.56.26 — no answer 0ms
[--] Verisign 64.6.64.6 — no answer 0ms
[--] Hurricane Electric 74.82.42.42 — no answer 0ms
[--] AdGuard 94.140.14.14 — no answer 0ms
CAA record [WARN] partial
STATUSRESOLVERIPVALUELATENCY
[OK] Cloudflare 1.1.1.1
0 issue "amazon.com" 0 issue "letsencrypt.org" 0 issue "pki.goog" 0 issue "sectigo.com" 0 issue "ssl.com" 0 issue "www.digicert.com" 0 issuewild "amazon.com" 0 issuewild "letsencrypt.org" 0 issuewild "pki.goog" 0 issuewild "sectigo.com" 0 issuewild "ssl.com" 0 issuewild "www.digicert.com"
0ms
[OK] Cloudflare 2 1.0.0.1
0 issue "amazon.com" 0 issue "letsencrypt.org" 0 issue "pki.goog" 0 issue "sectigo.com" 0 issue "ssl.com" 0 issue "www.digicert.com" 0 issuewild "amazon.com" 0 issuewild "letsencrypt.org" 0 issuewild "pki.goog" 0 issuewild "sectigo.com" 0 issuewild "ssl.com" 0 issuewild "www.digicert.com"
0ms
[OK] Google 8.8.8.8
0 issue "pki.goog" 0 issuewild "ssl.com" 0 issue "letsencrypt.org" 0 issue "ssl.com" 0 issue "amazon.com" 0 issuewild "www.digicert.com" 0 issue "www.digicert.com" 0 issuewild "letsencrypt.org" 0 issuewild "sectigo.com" 0 issue "sectigo.com" 0 issuewild "amazon.com" 0 issuewild "pki.goog"
0ms
[OK] Google 2 8.8.4.4
0 issuewild "amazon.com" 0 issue "www.digicert.com" 0 issue "pki.goog" 0 issuewild "letsencrypt.org" 0 issue "sectigo.com" 0 issuewild "pki.goog" 0 issuewild "sectigo.com" 0 issuewild "www.digicert.com" 0 issue "letsencrypt.org" 0 issue "amazon.com" 0 issuewild "ssl.com" 0 issue "ssl.com"
0ms
[OK] Quad9 9.9.9.9
0 issue "amazon.com" 0 issue "letsencrypt.org" 0 issue "pki.goog" 0 issue "sectigo.com" 0 issue "ssl.com" 0 issue "www.digicert.com" 0 issuewild "amazon.com" 0 issuewild "letsencrypt.org" 0 issuewild "pki.goog" 0 issuewild "sectigo.com" 0 issuewild "ssl.com" 0 issuewild "www.digicert.com"
0ms
[OK] OpenDNS 208.67.222.222
0 issue "amazon.com" 0 issue "letsencrypt.org" 0 issue "pki.goog" 0 issue "sectigo.com" 0 issue "ssl.com" 0 issue "www.digicert.com" 0 issuewild "amazon.com" 0 issuewild "letsencrypt.org" 0 issuewild "pki.goog" 0 issuewild "sectigo.com" 0 issuewild "ssl.com" 0 issuewild "www.digicert.com"
0ms
[OK] DNS.Watch 84.200.69.80
;; communications error to 84.200.69.80#53: timed out ;; no servers could be reached
31ms
[OK] Yandex 77.88.8.8
0 issuewild "www.digicert.com" 0 issue "amazon.com" 0 issue "letsencrypt.org" 0 issue "pki.goog" 0 issue "sectigo.com" 0 issue "ssl.com" 0 issue "www.digicert.com" 0 issuewild "amazon.com" 0 issuewild "letsencrypt.org" 0 issuewild "pki.goog" 0 issuewild "sectigo.com" 0 issuewild "ssl.com"
0ms
[OK] Comodo 8.26.56.26
0 issue "www.digicert.com" 0 issuewild "amazon.com" 0 issuewild "letsencrypt.org" 0 issuewild "pki.goog" 0 issuewild "sectigo.com" 0 issuewild "ssl.com" 0 issuewild "www.digicert.com" 0 issue "amazon.com" 0 issue "letsencrypt.org" 0 issue "pki.goog" 0 issue "sectigo.com" 0 issue "ssl.com"
0ms
[OK] Verisign 64.6.64.6
0 issuewild "www.digicert.com" 0 issue "amazon.com" 0 issue "letsencrypt.org" 0 issue "pki.goog" 0 issue "sectigo.com" 0 issue "ssl.com" 0 issue "www.digicert.com" 0 issuewild "amazon.com" 0 issuewild "letsencrypt.org" 0 issuewild "pki.goog" 0 issuewild "sectigo.com" 0 issuewild "ssl.com"
0ms
[OK] Hurricane Electric 74.82.42.42
0 issue "amazon.com" 0 issuewild "ssl.com" 0 issue "sectigo.com" 0 issue "www.digicert.com" 0 issuewild "pki.goog" 0 issuewild "sectigo.com" 0 issuewild "www.digicert.com" 0 issue "ssl.com" 0 issue "letsencrypt.org" 0 issuewild "letsencrypt.org" 0 issue "pki.goog" 0 issuewild "amazon.com"
0ms
[OK] AdGuard 94.140.14.14
0 issuewild "amazon.com" 0 issuewild "letsencrypt.org" 0 issuewild "pki.goog" 0 issuewild "sectigo.com" 0 issuewild "ssl.com" 0 issuewild "www.digicert.com" 0 issue "amazon.com" 0 issue "letsencrypt.org" 0 issue "pki.goog" 0 issue "sectigo.com" 0 issue "ssl.com" 0 issue "www.digicert.com"
0ms
SOA record [WARN] partial
STATUSRESOLVERIPVALUELATENCY
[OK] Cloudflare 1.1.1.1
owen.ns.cloudflare.com. dns.cloudflare.com. 2417512371 10000 2400 604800 1800
0ms
[OK] Cloudflare 2 1.0.0.1
owen.ns.cloudflare.com. dns.cloudflare.com. 2417512371 10000 2400 604800 1800
0ms
[OK] Google 8.8.8.8
owen.ns.cloudflare.com. dns.cloudflare.com. 2417512371 10000 2400 604800 1800
0ms
[OK] Google 2 8.8.4.4
owen.ns.cloudflare.com. dns.cloudflare.com. 2417512371 10000 2400 604800 1800
0ms
[OK] Quad9 9.9.9.9
;; communications error to 9.9.9.9#53: timed out ;; no servers could be reached
24ms
[OK] OpenDNS 208.67.222.222
owen.ns.cloudflare.com. dns.cloudflare.com. 2417512371 10000 2400 604800 1800
0ms
[OK] DNS.Watch 84.200.69.80
;; communications error to 84.200.69.80#53: timed out ;; no servers could be reached
2ms
[OK] Yandex 77.88.8.8
owen.ns.cloudflare.com. dns.cloudflare.com. 2417512371 10000 2400 604800 1800
0ms
[OK] Comodo 8.26.56.26
owen.ns.cloudflare.com. dns.cloudflare.com. 2417512371 10000 2400 604800 1800
0ms
[OK] Verisign 64.6.64.6
owen.ns.cloudflare.com. dns.cloudflare.com. 2417512371 10000 2400 604800 1800
0ms
[OK] Hurricane Electric 74.82.42.42
owen.ns.cloudflare.com. dns.cloudflare.com. 2417512371 10000 2400 604800 1800
0ms
[OK] AdGuard 94.140.14.14
owen.ns.cloudflare.com. dns.cloudflare.com. 2417512371 10000 2400 604800 1800
0ms
PTR record [WARN] partial
STATUSRESOLVERIPVALUELATENCY
[OK] Cloudflare 1.1.1.1
ec2-98-84-224-111.compute-1.amazonaws.com.
45ms
[OK] Cloudflare 2 1.0.0.1
ec2-98-84-224-111.compute-1.amazonaws.com.
6ms
[OK] Google 8.8.8.8
ec2-98-84-224-111.compute-1.amazonaws.com.
0ms
[OK] Google 2 8.8.4.4
ec2-98-84-224-111.compute-1.amazonaws.com.
0ms
[OK] Quad9 9.9.9.9
ec2-98-84-224-111.compute-1.amazonaws.com.
165ms
[OK] OpenDNS 208.67.222.222
ec2-98-84-224-111.compute-1.amazonaws.com.
0ms
[OK] DNS.Watch 84.200.69.80
;; communications error to 84.200.69.80#53: timed out ;; no servers could be reached
2815ms
[OK] Yandex 77.88.8.8
ec2-98-84-224-111.compute-1.amazonaws.com.
0ms
[OK] Comodo 8.26.56.26
ec2-98-84-224-111.compute-1.amazonaws.com.
0ms
[OK] Verisign 64.6.64.6
ec2-98-84-224-111.compute-1.amazonaws.com.
0ms
[OK] Hurricane Electric 74.82.42.42
ec2-98-84-224-111.compute-1.amazonaws.com.
0ms
[OK] AdGuard 94.140.14.14
ec2-98-84-224-111.compute-1.amazonaws.com.
0ms
TLS / SSL health [OK] 44d left
issuer
C = US, O = Let's Encrypt, CN = YE2
subject
CN = letsencrypt.org
valid from
Sep 4 14:34:32 2026 GMT
valid to
Dec 3 14:34:31 2026 GMT
signature algorithm
ecdsa-with-SHA384
public key
id-ecPublicKey · 256 bit
subject alternative names (10)
cp.letsencrypt.org cp.root-x1.letsencrypt.org cps.letsencrypt.org cps.root-x1.letsencrypt.org lencr.org letsencrypt.com letsencrypt.org www.lencr.org www.letsencrypt.com www.letsencrypt.org
sha256 fingerprint
1F:C4:F6:97:EE:FA:30:22:D8:72:DF:23:22:93:BD:DA:76:24:C9:39:64:D7:78:A5:30:26:91:2D:9D:52:9A:53
TLS 1.0
[OK] disabled
TLS 1.1
[OK] disabled
TLS 1.2
[OK] supported
TLS 1.3
[OK] supported
HTTP/2
[OK] supported
HTTP/3 (QUIC)
[--] no
HSTS
[OK] supported
max-age=31536000
OCSP stapling
[--] no
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faq / letsencrypt.org
How does the propagation check work for letsencrypt.org? →

We query 12 well-known recursive resolvers (Cloudflare, Google, Quad9, OpenDNS and others) in parallel using dig +short with a 3-second per-resolver timeout. The verdict is propagated when every resolver returns the same answer set, partial if any disagree, and missing if none answer.

How accurate is the SSL audit? →

We perform a real TLS handshake against port 443 using openssl s_client for each protocol version, then parse the leaf certificate. HTTP/2 and HTTP/3 are probed with curl. HTTP/3 may be marked as not probeable when our host's libcurl is built without nghttp3.

Why was this result cached? →

Results are cached per hour per domain to be kind to upstream resolvers and to keep this page snappy. Click re-check now to force a fresh probe.