Title: Blocking embeds' trackers?
Last modified: August 31, 2016

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# Blocking embeds' trackers?

 *  Resolved Anonymous User 8639124
 * (@anonymized-8639124)
 * [10 years, 4 months ago](https://wordpress.org/support/topic/blocking-embeds-trackers/)
 * My site makes pretty heavy use of Scribd.com to embed PDFs. One of the ways Scribd
   finances itself is by including trackers (for user data collection to sell to
   advertisers), but those trackers turn out to be huge files. We have a decently
   sized readership in countries with slow connections, so sometimes I worry about
   this kind of stuff.
 * Scribd-related assets add up to ~600kb per pageload:
    [http://tools.pingdom.com/fpt/#!/dlRUDp/http://cmsw.mit.edu/evaluating-interactive-documentaries/](http://tools.pingdom.com/fpt/#!/dlRUDp/http://cmsw.mit.edu/evaluating-interactive-documentaries/)
 * So granted, 1) Scribd is free so this is how they’re paying for themselves and
   2) I could take a bunch of time and set up a different way to feature the PDFs,
   but I’m curious: are there ways to block individual trackers from the site’s (
   not the user’s) end? Almost like an ad-track blocker for hosts?

Viewing 4 replies - 1 through 4 (of 4 total)

 *  Moderator [James Huff](https://wordpress.org/support/users/macmanx/)
 * (@macmanx)
 * [10 years, 4 months ago](https://wordpress.org/support/topic/blocking-embeds-trackers/#post-6910091)
 * Tracker blocking will have to happen on the browser’s end, not the site’s end.
 * As you mentioned, this is how Scribd funds itself, so if you use Scribd’s embeds,
   it has to include their trackers.
 * There are a few plugins which will allow you to embed PDFs yourself, like [https://wordpress.org/plugins/vanilla-pdf-embed/](https://wordpress.org/plugins/vanilla-pdf-embed/)
   and [https://wordpress.org/plugins/pdf-embedder/](https://wordpress.org/plugins/pdf-embedder/)
   with more at [https://wordpress.org/plugins/search.php?q=embed+pdf](https://wordpress.org/plugins/search.php?q=embed+pdf)
 *  Thread Starter Anonymous User 8639124
 * (@anonymized-8639124)
 * [10 years, 4 months ago](https://wordpress.org/support/topic/blocking-embeds-trackers/#post-6910178)
 * Thanks, James. 🙂
 *  Thread Starter Anonymous User 8639124
 * (@anonymized-8639124)
 * [10 years, 4 months ago](https://wordpress.org/support/topic/blocking-embeds-trackers/#post-6910184)
 * And for what it’s worth, after some testing, on balance PDF Embedder indeed is
   better than using Scribd.
 * I say “on balance” because on the one hand the PDF Embedder page size ends up
   quite a bit larger, I think because of the size of PDF Embedder’s .js file (but
   there may be a quirk in how the page-size testing tool I use measures files that
   load asynchronously), but on the other hand PDF Embedder doesn’t need to make
   a single external request. Compare that to Scribd, which in my tests resulted
   in _80 more requests_ for data, including 30 external scripts.
 *  Moderator [James Huff](https://wordpress.org/support/users/macmanx/)
 * (@macmanx)
 * [10 years, 4 months ago](https://wordpress.org/support/topic/blocking-embeds-trackers/#post-6910221)
 * You’re welcome! 🙂

Viewing 4 replies - 1 through 4 (of 4 total)

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 * In: [Fixing WordPress](https://wordpress.org/support/forum/how-to-and-troubleshooting/)
 * 4 replies
 * 2 participants
 * Last reply from: [James Huff](https://wordpress.org/support/users/macmanx/)
 * Last activity: [10 years, 4 months ago](https://wordpress.org/support/topic/blocking-embeds-trackers/#post-6910221)
 * Status: resolved

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