Leverage browser caching and Minimize redirects - .htaccess

Question

I'm trying to improve my performance for my website, but somehow, when I read the report, I find something that I don't quite understand.
My website is built with WordPress, but it's very clean and I didn't install many plugins because I built most of them by myself.
So my problems are:
Leverage browser caching - Report:
https://js.hs-scripts.com/3833369.js (1 minute)
https://js.hs-analytics.net/analytics/1553706000000/3833369.js (5 minutes)
https://js.hsadspixel.net/fb.js (10 minutes)
https://js.usemessages.com/conversations-embed.js (10 minutes)
https://www.googletagmanager.com/gtag/js?id=AW-1031048769 (15 minutes)
https://www.googletagmanager.com/gtm.js?id=GTM-TBCGVL (15 minutes)
https://connect.facebook.net/en_US/fbevents.js (20 minutes)
https://connect.facebook.net/signals/config/719765148155095?v=2.8.45&r=stable (20 minutes)
https://www.googleadservices.com/pagead/conversion_async.js (1 hour)
https://www.google-analytics.com/analytics.js (2 hours)
I set up all of the headers for all my script and my css, so this bunch of code shouldn't appear in this section.
Minimize redirects -> Report
https://px.ads.linkedin.com/collect/?time=1553706091452&pid=810212&url=https%3A%2F%2Fwww.stenbergcollege.com%2F&fmt=js&s=1
https://px.ads.linkedin.com/collect/?time=1553706091452&pid=810212&url=https%3A%2F%2Fwww.stenbergcollege.com%2F&fmt=js&s=1&cookiesTest=true
https://www.linkedin.com/px/li_sync?redirect=https%3A%2F%2Fpx.ads.linkedin.com%2Fcollect%2F%3Ftime%3D1553706091452%26pid%3D810212%26url%3Dhttps%253A%252F%252Fwww.stenbergcollege.com%252F%26fmt%3Djs%26s%3D1%26cookiesTest%3Dtrue%26liSync%3Dtrue
https://px.ads.linkedin.com/collect/?time=1553706091452&pid=810212&url=https%3A%2F%2Fwww.stenbergcollege.com%2F&fmt=js&s=1&cookiesTest=true&liSync=true
I have no idea where these links are coming from..
My .htaccess file looks like this:
<IfModule mod_rewrite.c>
ExpiresActive On
ExpiresByType text/css "access 1 month"
ExpiresByType text/html "access 1 month"
ExpiresByType image/gif "access 1 year"
ExpiresByType image/png "access 1 year"
ExpiresByType image/jpg "access 1 year"
ExpiresByType image/jpeg "access 1 year"
ExpiresByType image/x-icon "access 1 year"
ExpiresByType image/webp "access plus 1 month"
ExpiresByType application/pdf "access 1 month"
ExpiresByType application/javascript "access 1 month"
ExpiresByType text/x-javascript "access 1 month"
ExpiresByType application/x-shockwave-flash "access 1 month"
ExpiresDefault "access 1 month"
RewriteEngine On
RewriteBase /
RewriteRule ^index\.php$ - [L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /index.php [L]
</IfModule>
<IfModule mod_deflate.c>
# Compress HTML, CSS, JavaScript, Text, XML and fonts
AddOutputFilterByType DEFLATE application/javascript
AddOutputFilterByType DEFLATE application/rss+xml
AddOutputFilterByType DEFLATE application/vnd.ms-fontobject
AddOutputFilterByType DEFLATE application/x-font
AddOutputFilterByType DEFLATE application/x-font-opentype
AddOutputFilterByType DEFLATE application/x-font-otf
AddOutputFilterByType DEFLATE application/x-font-truetype
AddOutputFilterByType DEFLATE application/x-font-ttf
AddOutputFilterByType DEFLATE application/x-javascript
AddOutputFilterByType DEFLATE application/xhtml+xml
AddOutputFilterByType DEFLATE application/xml
AddOutputFilterByType DEFLATE font/opentype
AddOutputFilterByType DEFLATE font/otf
AddOutputFilterByType DEFLATE font/ttf
AddOutputFilterByType DEFLATE image/svg+xml
AddOutputFilterByType DEFLATE image/x-icon
AddOutputFilterByType DEFLATE text/css
AddOutputFilterByType DEFLATE text/html
AddOutputFilterByType DEFLATE text/javascript
AddOutputFilterByType DEFLATE text/plain
AddOutputFilterByType DEFLATE text/xml
# Remove browser bugs (only needed for really old browsers)
BrowserMatch ^Mozilla/4 gzip-only-text/html
BrowserMatch ^Mozilla/4\.0[678] no-gzip
BrowserMatch \bMSIE !no-gzip !gzip-only-text/html
Header append Vary User-Agent
</IfModule>
Is there something that I forget to add? There are many plugins out there that could do the job for you but I want to understand where my mistake is.

Answer 1

I think you can't do anything if you want to keep tracking data with Google Tag, Facebook Tag and the LinkedIn Convertion Pixel. I'm facing the same here.