I tried using these guides:
When I ping my domain, I get a response from my compute-engine external IP address, but my WebApp is not loading.
Am I missing something? I get ERR_CONNECTION_REFUSED
There is not enough information to definitely say what the issue is, but here are some suggestions to troubleshoot.
Have your registrar's name server records been updated?
Make sure the following consistently returns Google's name servers for your zone
$ dig +short NS example.com
Have Google's name server propagated the change?
List your Google name servers -
$ gcloud dns managed-zones describe examplezonename
Verify they have propagated -
$ dig example.com @your_zone_nameserver
Are your A and CNAME records set correctly?
Next you should verify that the DNS reply returns the correct A and CNAME entries.
$ dig example.com A
$ dig example.com CNAME
Have you configured your IP and Firewall settings correctly?
You can follow the troubleshooting guide here or update your question with more details.
Caveats
Please also keep in mind that DNS entries are cached and it can take some time for your changes to take effect.
Pings of your external IP are most likely answered by a load balancer and not your instance specifically.
I tried using these guides:
When I ping my domain, I get a response from my compute-engine external IP address, but my WebApp is not loading.
Am I missing something? I get ERR_CONNECTION_REFUSED
There is not enough information to definitely say what the issue is, but here are some suggestions to troubleshoot.
Have your registrar's name server records been updated?
Make sure the following consistently returns Google's name servers for your zone
$ dig +short NS example.com
Have Google's name server propagated the change?
List your Google name servers -
$ gcloud dns managed-zones describe examplezonename
Verify they have propagated -
$ dig example.com @your_zone_nameserver
Are your A and CNAME records set correctly?
Next you should verify that the DNS reply returns the correct A and CNAME entries.
$ dig example.com A
$ dig example.com CNAME
Have you configured your IP and Firewall settings correctly?
You can follow the troubleshooting guide here or update your question with more details.
It appears that your web server may not be set up correctly and there does not seem to be any process listening on either port 80 or 443.
$ nmap queguia.com
Starting Nmap 7.40 ( https://nmap.org ) at 2017-05-03 12:16 PDT
Nmap scan report for queguia.com (35.184.29.62)
Host is up (0.15s latency).
rDNS record for 35.184.29.62: 62.29.184.35.bc.googleusercontent.com
Not shown: 996 filtered ports
PORT STATE SERVICE
22/tcp open ssh
80/tcp closed http
443/tcp closed https
3389/tcp closed ms-wbt-server
Nmap done: 1 IP address (1 host up) scanned in 10.21 seconds
Caveats
Please also keep in mind that DNS entries are cached and it can take some time for your changes to take effect.
Pings of your external IP are most likely answered by a load balancer and not your instance specifically.
Google Enterprise Support:
All App Engine services run by default (domain.appspot.com). In order to map your service on your own domain name, please read the following article https://cloud.google.com/appengine/docs/standard/python/console/using-custom-domains-and-ssl