Let's Debug

Test result for penglipig.com using http-01

penglipig.com has an A (IPv4) record ( 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.
Get http://penglipig.com/.well-known/acme-challenge/letsdebug-test: dial tcp connect: no route to host

@0ms: Making a request to http://penglipig.com/.well-known/acme-challenge/letsdebug-test (using initial IP
@0ms: Dialing
@146ms: Experienced error: dial tcp connect: no route to host
A test authorization for penglipig.com to the Let's Encrypt staging service has revealed issues that may prevent any certificate for this domain being issued.
Fetching http://penglipig.com/.well-known/acme-challenge/2KLPQFQ-9bb3lhPL3ModTXju46baOdA4_qIkHzH9oSk: Error getting validation data
The current status as reported by the Let's Encrypt status page is Planned Maintenance as at 2019-10-16 19:55:26.125 +0000 UTC. Depending on the reported problem, this may affect certificate issuance. For more information, please visit the status page.

Submitted Oct 17 04:36:17 2019. Sat in queue for 1ms. Completed in 3s. Show verbose information.