NGINX Multiple Site Setup - nginx

Question

Basically, my NGINX setup is working fine for 2 of my sites but adding a third redirects to the second one.
server {
listen 80;
root /var/www/html/link.com/public/;
index index.php index.html index.htm index.nginx-debian.html;
server_name www.link.com link.com;
location / {
# URLs to attempt, including pretty ones.
try_files $uri $uri/ /index.php?$query_string;
}
location ~ \.php$ {
include snippets/fastcgi-php.conf;
fastcgi_pass unix:/run/php/php7.0-fpm.sock;
fastcgi_split_path_info ^(.+\.php)(/.+)$;
fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
include fastcgi_params;
}
location ~ /\.ht {
deny all;
}
}
user www-data;
worker_processes auto;
pid /run/nginx.pid;
events {
worker_connections 768;
# multi_accept on;
}
http {
##
# Basic Settings
##
sendfile on;
tcp_nopush on;
tcp_nodelay on;
keepalive_timeout 65;
types_hash_max_size 2048;
# server_tokens off;
# server_names_hash_bucket_size 64;
# server_name_in_redirect off;
include /etc/nginx/mime.types;
default_type application/octet-stream;
##
# SSL Settings
##
ssl_protocols TLSv1 TLSv1.1 TLSv1.2; # Dropping SSLv3, ref: POODLE
ssl_prefer_server_ciphers on;
##
# Logging Settings
##
access_log /var/log/nginx/access.log;
error_log /var/log/nginx/error.log;
##
# Gzip Settings
##
gzip on;
gzip_disable "msie6";
# gzip_vary on;
# gzip_proxied any;
# gzip_comp_level 6;
# gzip_buffers 16 8k;
# gzip_http_version 1.1;
# gzip_types text/plain text/css application/json application/javascript text/xml application/xml application/xml+rss text/javascript;
##
# Virtual Host Configs
##
include /etc/nginx/conf.d/*.conf;
include /etc/nginx/sites-enabled/*;
}
My other 3 sites have the same config but editted accordingly. I also have a default section.
All 4 sites have a symbolic link in sites-enabled. I also havent editted the nginx.conf I dont think.
What could be the issue here?

Answer 1

Just consolidating the links in the comments above and adding a few more for reference :
https://www.nginx.com/resources/wiki/start/topics/examples/full/
https://www.nginx.com/resources/wiki/start/topics/examples/server_blocks/
https://nginx.org/en/docs/example.html
+
multiple websites on nginx & sites-available
Below two are in turn referenced in one of the answers in the above SO post :
http://nginx.org/en/docs/http/request_processing.html
http://nginx.org/en/docs/http/server_names.html
+
https://www.digitalocean.com/community/tutorials/how-to-set-up-nginx-server-blocks-virtual-hosts-on-ubuntu-16-04
While its not quite the standard SO answer, until someone else with better understanding comes along, you can refer these.