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Presumably if your site is behind Cloudflare then this strategy won't work, right? Since the IP addresses that Security Trails sees are just of Cloudflare rathe

Presumably if your site is behind Cloudflare then this strategy won't work, right? Since the IP addresses that Security Trails sees are just of Cloudflare rather than your actual Heroku IPs...? Or is it possible in the Cloudflare dashboard there is somewhere to see your Heroku server's IP address?

bfirsh 4y ago
You need to put in the herokudns.com address that the CNAME is pointing at – e.g. stark-wisteria-rnbgkawldfk6gq7m8308ytts.herokudns.com in our case.
- iuliu 4y ago
  For me the securitytrails.com website just crashes. I put my DNS target: "stark-horse-mrp4jeowu9yvwpnnma32x6hd.herokudns.com", clicked "Run Check" and it seems to redirect to a failed (no CSS) webpage. Anyone else experiencing this? EDIT: I MANAGED to make it work with this: https://www.nslookup.io/ https://www.nslookup.io/ Make sure to go through all the tabs at the top (Cloudflare DNS, Google DNS) - for me they were all "no A records found". Only "Authoritative" gave me 3 A records which I successfully managed to use.
  - jonathanreinink 4y ago
    Yeah securitytrails.com was working for me, but went down about 10 mins ago.
  - eappleby 4y ago
    That seems to happen when you put in a DNS target that doesn't have any records in SecurityTrails. In that case, it is best to use nslookup
- jplehmann 4y ago
  Thanks so much, it worked for us.
ladybro 4y ago
Worked for us on Cloudflare
rsweeney21 4y ago
We use cloudflare. If you look up the IP address for your public domain name, you will get the cloudflare IP, yes. If you lookup the IP address of the CNAME target, you will get the heroku IP.
- estafaa 4y ago
  on Cloudflare do you create A records (with found IPs) with name "www" or "mydomain.com"? also do you make that A record proxied or no? Thank you!
  - rickyc091 4y ago
    Use an A record and type in @. Proxied is fine.
  - alexpoof 4y ago
    For my domain (https://www.poof.io https://www.poof.io), it's www. If you just use something like https://poof.io https://poof.io, then it would be @. Depends on your site. There should be a few historical IP addresses, but you would create an A record for each of them.
tdehnke 4y ago
We use Cloudflare + Heroku and it worked for us.

bfirsh 4y ago

You need to put in the herokudns.com address that the CNAME is pointing at – e.g. stark-wisteria-rnbgkawldfk6gq7m8308ytts.herokudns.com in our case.

iuliu 4y ago
For me the securitytrails.com website just crashes. I put my DNS target: "stark-horse-mrp4jeowu9yvwpnnma32x6hd.herokudns.com", clicked "Run Check" and it seems to redirect to a failed (no CSS) webpage. Anyone else experiencing this? EDIT: I MANAGED to make it work with this: https://www.nslookup.io/ https://www.nslookup.io/ Make sure to go through all the tabs at the top (Cloudflare DNS, Google DNS) - for me they were all "no A records found". Only "Authoritative" gave me 3 A records which I successfully managed to use.
- jonathanreinink 4y ago
  Yeah securitytrails.com was working for me, but went down about 10 mins ago.
- eappleby 4y ago
  That seems to happen when you put in a DNS target that doesn't have any records in SecurityTrails. In that case, it is best to use nslookup
jplehmann 4y ago
Thanks so much, it worked for us.

ladybro 4y ago

Worked for us on Cloudflare

rsweeney21 4y ago

We use cloudflare. If you look up the IP address for your public domain name, you will get the cloudflare IP, yes. If you lookup the IP address of the CNAME target, you will get the heroku IP.

estafaa 4y ago
on Cloudflare do you create A records (with found IPs) with name "www" or "mydomain.com"? also do you make that A record proxied or no? Thank you!
- rickyc091 4y ago
  Use an A record and type in @. Proxied is fine.
- alexpoof 4y ago
  For my domain (https://www.poof.io https://www.poof.io), it's www. If you just use something like https://poof.io https://poof.io, then it would be @. Depends on your site. There should be a few historical IP addresses, but you would create an A record for each of them.

tdehnke 4y ago

We use Cloudflare + Heroku and it worked for us.