mDNS is working with Bonjour

Latest AT document 2.0
https://espressif.com/sites/default/file­s/documentation/4a-esp8266_at_instructio­n_set_en.pdf

37. AT+MDNS – Set MDNS function
ESP8266 softAP mode cannot support MDNS. Please do not use special characters (for example, "."
character), or use a protocol name (for example, "http"), when defining "host_name" and
"server_name" for MDNS.
AT+WPS – Set WPS function
Example
AT+CWMODE=1
AT+WPS=1
Command AT+WPS=<enable>
Response OK
Parameter
<enable>
1 : start WPS function
0 : stop WPS function
AT+MDNS – Set MDNS function
Example AT+MDNS=1, "espressif", "iot", 8080
Command AT+MDNS=<enable>, <hostname>, <server_name>, <server_port>
Response OK
Parameter
<enable>
1 : enable MDNS function
0 : disable MDNS function
<hostname> MDNS host name
<server_name> MDNS server name
<server_port> MDNS server port