Let's Debug

Test result for www.iotplayground.tk using http-01

www.iotplayground.tk has an AAAA (IPv6) record (2606:4700:3035::ac43:a8f3) but a test request to this address over port 80 did not succeed. Your web server must have at least one working IPv4 or IPv6 address. You should either ensure that validation requests to this domain succeed over IPv6, or remove its AAAA record.
A timeout was experienced while communicating with www.iotplayground.tk/2606:4700:3035::ac43:a8f3: Get "http://www.iotplayground.tk/.well-known/acme-challenge/letsdebug-test": context deadline exceeded

Trace:
@0ms: Making a request to http://www.iotplayground.tk/.well-known/acme-challenge/letsdebug-test (using initial IP 2606:4700:3035::ac43:a8f3)
@0ms: Dialing 2606:4700:3035::ac43:a8f3
@10000ms: Experienced error: context deadline exceeded
www.iotplayground.tk has an AAAA (IPv6) record (2606:4700:3033::6815:3f03) but a test request to this address over port 80 did not succeed. Your web server must have at least one working IPv4 or IPv6 address. You should either ensure that validation requests to this domain succeed over IPv6, or remove its AAAA record.
A timeout was experienced while communicating with www.iotplayground.tk/2606:4700:3033::6815:3f03: Get "http://www.iotplayground.tk/.well-known/acme-challenge/letsdebug-test": context deadline exceeded

Trace:
@0ms: Making a request to http://www.iotplayground.tk/.well-known/acme-challenge/letsdebug-test (using initial IP 2606:4700:3033::6815:3f03)
@0ms: Dialing 2606:4700:3033::6815:3f03
@10000ms: Experienced error: context deadline exceeded
Error
www.iotplayground.tk has an A (IPv4) record (104.21.63.3) but a request to this address over port 80 did not succeed. Your web server must have at least one working IPv4 or IPv6 address.
A timeout was experienced while communicating with www.iotplayground.tk/104.21.63.3: Get "http://www.iotplayground.tk/.well-known/acme-challenge/letsdebug-test": context deadline exceeded

Trace:
@0ms: Making a request to http://www.iotplayground.tk/.well-known/acme-challenge/letsdebug-test (using initial IP 104.21.63.3)
@2ms: Dialing 104.21.63.3
@10000ms: Experienced error: context deadline exceeded
Error
www.iotplayground.tk has an A (IPv4) record (172.67.168.243) but a request to this address over port 80 did not succeed. Your web server must have at least one working IPv4 or IPv6 address.
A timeout was experienced while communicating with www.iotplayground.tk/172.67.168.243: Get "http://www.iotplayground.tk/.well-known/acme-challenge/letsdebug-test": context deadline exceeded

Trace:
@0ms: Making a request to http://www.iotplayground.tk/.well-known/acme-challenge/letsdebug-test (using initial IP 172.67.168.243)
@0ms: Dialing 172.67.168.243
@10000ms: Experienced error: context deadline exceeded

Submitted May 11 15:04:54 2021. Sat in queue for 21ms. Completed in 43s. Show verbose information.