How to fix a bug that slows down the site with social buttons?

Question

Social media

Hello.
I use these social buttons and recently noticed a bug that significantly slows down the loading of the site.

Failed to load resource: the server responded with a https://share.yandex.ru/gpp.xml?url=http%3A%2F%2Fsocial-likes.js.org%2Fru%2F&callback=jQuery220020035631438018187_1504109446300&_=1504109446301 
status of 500 (Internal Server Error)

The error on their home page is similar to the error on my site. How can it be corrected?

Answer 1

The problem was in the google+ counter.
I solved it with this code:

var url = "http://www.yoursite-to-be-counted.com";
var data = {
    "method":"pos.plusones.get",
    "id": url,
    "params":{
        "nolog":true,
        "id": url,
        "source":"widget",
        "userId":"@viewer",
        "groupId":"@self"
    },
    "jsonrpc":"2.0",
    "key":"p",
    "apiVersion":"v1"
  };
  $.ajax({
    type: "POST",
    url: "https://clients6.google.com/rpc",
    processData: true,
    contentType: 'application/json',
    data: JSON.stringify(data),
    success: function(r){
      setCount($(".google-plus-count"), r.result.metadata.globalCounts.count);
    }
  });

  var setCount = function($item, count) {
    if (count) {
      $item.text(count);
    }
  };

Answer 2

Load everything asynchronously if possible, but it depends heavily on the context, so you can see more details, for example, here https://css-tricks.com/thinking-async/
And figure out where and what to stick in your case.