When we access carsizler.com by domain name it takes too much time, but when we access the site by IP (184.108.40.206) it opens very quickly without any delay. Can you help us determine what the problem could be?
We are using Bind9.
Because you didn't redact the domain name (thank you!), this one is hopefully simple: you are advertising two IP addresses under that A record:
[madhatta@risby madhatta]$ dig carsizler.com [...] ;; ANSWER SECTION: carsizler.com. 38400 IN A 220.127.116.11 carsizler.com. 38400 IN A 18.104.22.168
Most browsers will try one of those addresses at random, and it looks like the one that you don't list isn't running a web server:
[madhatta@risby madhatta]$ telnet 22.214.171.124 80 Trying 126.96.36.199... telnet: connect to address 188.8.131.52: No route to host
Stop advertising the
.3 address and things should speed up. Note that because your TTL is so large (38400s), it might be over ten hours before all affected clients see the fix.