Failed to connect to WordPress.com

Hi @nibbl –

When we attempt to connect to your site, requests to xmlrpc.php are being blocked as shown in this error:

Testing: https://aroundmos.ru/xmlrpc.php
HTTP/2 405 
server: nginx-reuseport/1.21.1
date: Mon, 02 Jan 2023 20:09:09 GMT
content-type: text/html
content-length: 167

Jetpack Boost uses the connection to the Jetpack servers to generate Critical CSS.

I’d  suggest  checking if  you  have  any  security  plugins  activated that  might  be  blocking  our requests.  If  not,  try  contacting  your  hosting  provider  and  asking  them  to  check  their  security  logs  to  see  if  they  are  blocking  or  otherwise  limiting  incoming  and  outgoing  connections  over  XML-RPC. 

Jetpack  uses  this  file  to  communicate  with  your  site,  but  some  hosts  block  connection  requests  to  that  file.

Please  ask  them  to  allowlist  the  IP  addresses  listed  above.  Note  that  these  IP  addresses  could  change  (or  more  could  be  added)  at  any  time,  which  could  break  your  connection  to  Jetpack.  For  this  reason,  we  actually  discourage  allowing  specific  IPs,  although  with  some  hosts  it  may  be  the  only  option.

Let  us  know  how  that  goes.