A following analysis script for Mastodon.

readme.md

Mastodon Follower Analysis

A rough Mastodon follower origin analysis script.

Operation

1. Zoom out Mastodon all the way so all following are on screen.
2. Copy and paste follow_analysis.js's contents into the JS console.
3. Set your mode. If you want to analyze followers, set mode to 2, and 1 if you want to analyze following.
4. Select the appropiate tab (follower/following) in Mastodon.
5. Run it by pressing Enter.
6. All data will be printed to console.

Note: Uses various code snippets from StackOverflow, including:

• https://stackoverflow.com/questions/14379274/how-to-iterate-over-a-javascript-object
• https://stackoverflow.com/questions/19395257/how-to-count-duplicate-value-in-an-array-in-javascript#19395302
• https://stackoverflow.com/questions/432493/how-do-you-access-the-matched-groups-in-a-javascript-regular-expression#432503

License

MIT.

follow_analysis.js

var mode = 1
// mode 1: following
// mode 2: followers

if(mode == 1) {
console.warn ("Followed Users Breakdown:")
} else if(mode == 2) {
console.warn ("Follower Breakdown:")
}

var ar = []
var entries = document.querySelectorAll(".item-list>article>.account>.account__wrapper>a>.display-name>.display-name__account")
for(i=0;i<entries.length;i++) {
    try {
       ar.push(/(@.*@)(.*\..*)/.exec(entries[i].innerHTML)[2]) 
    } catch(err) {}
}
var home = (Number(document.querySelectorAll(".account__action-bar__tab>strong>span")[mode].innerHTML))-ar.length

console.info("Remote Follows: " + ar.length + "\nHome Follows: " + home + "\n")

var counts = JSON.parse(`{"${window.location.host}": ${home}}`);
ar.forEach(function(x) { counts[x] = (counts[x] || 0)+1; });

for (var key in counts) {
  console.log(key, counts[key], Math.floor((counts[key]/ar.length)*100) + "%");
}