UNABLE TO TRIGGER WEBHOOK USING AT COMMAND

[Biswanath00]

I am using ESP-01 module for WIFI communication :

AT+CWJAP="FTTH-0FC5","*******"
AT+CIPSTART="TCP","maker.ifttt.com",443
AT+CIPSEND=80

\r\nGET /trigger/help/with/key/MY_KEY HTTP/1.1\r\n
Host: maker.ifttt.com\r\n\r\n

---

output:

23:57:08.737 -> +IPD,272:HTTP/1.1 400 Bad Request
23:57:08.737 -> Server: awselb/2.0
23:57:08.784 -> Date: Sun, 12 Sep 2021 18:27:08 GMT
23:57:08.831 -> Content-Type: text/html
23:57:08.831 -> Content-Length: 122
23:57:08.831 -> Connection: close
23:57:08.877 ->
23:57:08.877 ->
23:57:08.877 -> <title>400 Bad Request</title>
23:57:08.924 ->
23:57:08.924 ->

400 Bad Request

23:57:08.970 ->
23:57:08.970 ->

[d-a-v]

This is not about the arduino firmware.
Please address your question to an esp8266-AT firmware forum (example: stack overflow, esp8266.com)