this post was submitted on 15 Oct 2025
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This is the main reason I completely ditched Reddit, if you use the new Reddit interface instead of the old one (old.reddit.com), you'll see a constant request being made to "https://www.reddit.com/svc/shreddit/events" (open your DevTools > Network tab, can't see on Firefox idk why).

The problem is, if you add this to your Ublock Origin filters the website won't load properly, that's why uBO team didn't block it already.

You'll notice this request isn't only being made from a interval but also when you do basically any action in the site, like pausing or resuming a video (send timestamps of when did you pause or resumed).

It sends other kind of data like what subjects you're seeing when closed a tab or the related subjects of a post you click, this all can be used to trace a perfect profile of you and things you like.

You can avoid that by using the old.reddit but it still has the same kind of tracker, even tho you can block it here without major issues.

By my analysis, old Reddit interface does the same but to a random URL path that always starts with "reddit.com/api/something". Ex.: reddit.com/api/friends So you can block anything that starts with "www.reddit.com/api" in your custom filters (after all you're using old.reddit.com), then you're mostly free from Reddit trackers (more or less). Side effect is, you won't be able to use the chat in the old interface.

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[–] expr@programming.dev 4 points 1 day ago (1 children)

Reddit sucks for many reasons and I refuse to use it, but as a software engineer, this hardly looks nefarious. That looks like a pretty typical event gateway in networked applications, which is used for all kinds of things to make a platform run. We have one in our application, and it's not used for any kind of privacy-invasive tracking. We use it for things like bulk data processing for things like userbase-level analytics (like, how many users are using this feature?), or for billing purposes for our customers (since we bill based on usage).

And calls to /api/* routes are absolutely completely normal for any SPA (single page app), and are required for them to function. There's certainly a technical argument to be made against SPAs in favor of more traditional server-side rendering (augmented by tools like https://htmx.org/ for dynamic content), which could be used to avoid these kinds of API calls (and, in fact, it's a model I'm very much in favor of), but that kind of architecture is far from the norm these days. The SPA model is the current (IMO bad, from a technical perspective) standard.

We have many reasons to shit on reddit and their behavior, but this honestly isn't one of them.

[–] CodenameDarlen@lemmy.world 1 points 1 day ago (1 children)

The point isn't the endpoint call, the point is while accessing old.reddit.com it's making calls to reddit.com, I inspect it closely, reddit.com/api has no use when you're using old.reddit.com, the calls to the website work are made to old.reddit.com/api, the calls for tracking are made to reddit.com/api. And old reddit isn't a SPA, you can access it with JS disabled.

[–] expr@programming.dev 1 points 1 day ago (1 children)

I know old reddit is not an SPA, but that's entirely the point. New reddit is clearly written as an SPA. Old reddit was created before SPAs were super common, so it uses a different architecture.

[–] CodenameDarlen@lemmy.world 1 points 1 day ago (1 children)

Yes, so when we're talking about calls to /api/* we're talking about old.reddit.com, I didn't say anything about calls to this endpoint on new reddit, the problem with new Reddit are calls made to https://www.reddit.com/svc/shreddit/events with a lot of trackers. It can't be blocked.

[–] expr@programming.dev 1 points 1 day ago (1 children)

Right, and I explained that looks like a very common event gateway kind of architecture, which has many legitimate uses.

Now, it's entirely possible that Reddit is also using it for tracking shit (because of who they are), but the mere fact that an event gateway exists isn't evidence of that. Here's the Wikipedia article on the architecture: https://en.m.wikipedia.org/wiki/Event-driven_architecture.

[–] CodenameDarlen@lemmy.world 1 points 1 day ago (1 children)

If you want to believe Reddit is using it merely to make their website to work properly, be my guest.

[–] expr@programming.dev 2 points 1 day ago (1 children)

I have no doubt Reddit is doing shitty things (as evidenced by, well, everything in the last several years), but that's entirely unrelated to what kind of architecture is involved. You can do shitty stuff with regular JS, cookies, etc. on webpages.

I simply don't want people thinking that this is actual evidence of wrongdoing, because it isn't.

[–] CodenameDarlen@lemmy.world 2 points 1 day ago

You really can't tell that this isn't being used for evil practices, personal info is leaving your machine via client-side requests, end of story. You can use your judgement, but by fact, you can't really tell anything. I wouldn't trust Reddit, if you trust them good of your.

[–] Xylight@feddit.online 1 points 1 day ago

I use Redlib to access Reddit, especially because I constantly get the "your request was blocked by network security" issues

[–] njordomir@lemmy.world 3 points 1 day ago* (last edited 1 day ago)

Sad. There was a time when Reddit, despite all its flaws, was great for connecting with obscure interests and getting inside knowledge on niche topics. It made small communities feel big. I find myself on Reddit occasionally, usually just the "you've been blocked by network security ;-) page, but I don't feel the same way on Reddit anymore. The more I hear about their behavior in the background, the less I want to read or contribute in the foreground. Lemmy captures some of the vibes of reddit, but the in-depth, obscure communites, were kind of shattered. I'm slowly discovering some cool forums and stuff that have weathered the web centralization era.

[–] Pamasich@kbin.earth 3 points 1 day ago (1 children)

I'm a bit confused here. API calls aren't trackers. It's how the frontend communicates with the backend. Of course Shreddit wouldn't work if you blocked them, Reddit doesn't live on your PC. ~~I'm actually surprised Old Reddit still works with them blocked. Are you sure it actually works works, or does it just look like it's working locally? If you save a post for example, does it stay saved if you close the window and open it again?~~

Edit: Yeah, just tested it: even on Old Reddit, saving, for example, doesn't work if you block reddit.com/api/*. Voting looks like it works, but if you reload the page, your vote is gone. Because it only ever existed client-side.

[–] CodenameDarlen@lemmy.world 1 points 1 day ago* (last edited 1 day ago) (1 children)

It should explicit start with "www.reddit" or it'll be targeting "old.reddit.com/api" which is used for site features. Then you'll see everything works as usual, no issues, but this request is blocked (the trackers).

[–] Pamasich@kbin.earth 1 points 1 day ago (1 children)

I use www.reddit, so there's no old.reddit calls happening. You can change in the settings whether www is old reddit or shreddit (until you clear your cookies).

Anyway, my point was more that that's just the general frontend-backend communication happening there. If you turn that off, even old reddit won't work anymore. It's not something you should be blocking.

[–] CodenameDarlen@lemmy.world 1 points 1 day ago

The old reddit will work fine my friend, the new one won't.

[–] KairuByte@lemmy.dbzer0.com 1 points 1 day ago* (last edited 1 day ago) (1 children)

This entire post is just a massive misunderstanding of how web software works. This is a normal, every day thing, and every single non static (and even sometimes static) site out there does this, or something parallel to this.

They don’t need to make api calls to track you, you’re logged in or at the very least connecting in a way that lets them follow your session.

They don’t even need api calls to fingerprint your browser, they can just throw that fingerprinting into every post when you go to get more content.

Bottom line: This ain’t it, chief.

[–] CodenameDarlen@lemmy.world 1 points 1 day ago (1 children)

Inspect this request by yourself and you'll see, they send info about everything, this is not normal. If this is normal all Ublock Origin team work is non-sense, why bother blocking trackers on client-side? If, according to you, they can tracker the same way via server-side.

Blocking this request is a layer of protection, not a silver bullet to not be tracked, other means should be used for that.

[–] KairuByte@lemmy.dbzer0.com 1 points 1 day ago (1 children)

99% of that is stuff they already know. What api endpoint is this?

[–] CodenameDarlen@lemmy.world 1 points 21 hours ago (1 children)

They can't know at what minute you paused or resumed a video via server side (this is sick to me)... Actually, this doesn't even make sense, if they are able to know all of that via server-side why send redundant data via client-side?

I took a look and besides the amount of info they send, what draw my attention is that they send an accurate flag if you're using an adblocker or not, not sure why tho, but they know who use and who don't, they just chose to do nothing.

There are way more if you inspect it closely.

It's the endpoint of new reddit that I mentioned in the post, if you block it the feed won't load anymore.

[–] KairuByte@lemmy.dbzer0.com 1 points 21 hours ago (1 children)

Their video player streams, not unlike YouTube. Sending the “the user paused” action can easily be explained by them wanting to tell the server to stop sending data when the client isn’t even attempting to view it.

Look, I get that you’re gung go about privacy, but you’re going to see damn near exactly these types of things with any API. Sometimes it’s nefarious, sure. But the vast majority of it is simply how web based software works.

I mean, just look at the majority of that data. What feed you’re in? You pulled the feed data from their server, they don’t need to gather that for tracing purposes. What media is open? Obviously they can track that when you pull the media info down from their servers. How long that media is? The sizing of the media? When that post was posted?

I’m seeing virtually nothing in there they don’t already have. This is just an API being fed information it needs to run. The fact that it’s all information they can already track is kinda proof of that. Why go to all this trouble tracking the information a second time?

[–] zecg@lemmy.world 25 points 2 days ago (7 children)

That's like warning me there's bacteria in the shitting bucket

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[–] crank0271@lemmy.world 45 points 2 days ago (2 children)

This is good to know - thanks for sharing. I dread that old.reddit.com's days are numbered...

[–] CodenameDarlen@lemmy.world 18 points 2 days ago

Same, pretty sure they'll completely shut down old reddit soon.

[–] EndlessNightmare@reddthat.com 5 points 2 days ago

It's been acting really squirrely on my phone (no, I don't use the app), to the point where I've just don't bother with it anymore. It seems like they are changing stuff, and I'm done with it.

[–] FreeBooteR69@lemmy.ca 8 points 2 days ago (1 children)

It's a guilty little pleasure of mine to read about how shitty it is for those who freely choose to remain there. It's tragic, but I can't help but shake my head in disbelief at such stupidity. Why do people put up with shit like that, totally blows my mind.

[–] nutsack@lemmy.dbzer0.com 5 points 2 days ago (2 children)

it's got all the content and users

[–] Yaky@slrpnk.net 1 points 1 day ago

IMO it had all the content and users some time ago. I follow mostly specific interest/hobby subreddits, but lately even they have devolved into illiterates asking the same exact questions repeatedly; some strange attention-seeking posts such as pictures captioned "getting started"/“this just arrived" or "what should I do with this thing that I got?"; and really dumb stuff such as "I inhaled solder fumes, will I get lead poisoning?" (These are at least entertaining in a way)

[–] Garbagio@lemmy.zip 2 points 2 days ago

I mean it depends on what you use it for. Lemmy instances might not have as much content, but the question is if they have enough content. If I can't scroll to the end of reddit or Lemmy, what's the difference? Lemmy doesn't have the depth of knowledge, though; I'm not going to find 12 year old troubleshooting tips for my GBA on Lemmy.

[–] A_norny_mousse@feddit.org 11 points 2 days ago (1 children)

The problem is, if you add this to your Ublock Origin filters the website won’t load properly

This is unfortunately true for many many many sites.

Use non-commercial web pages & internet stuff as much as possible.

[–] Pamasich@kbin.earth 0 points 1 day ago

Many non-commercial websites still need to talk to their backend to function. Lemmy for example has the same exact "issue" OP is pointing out about Reddit here. It also makes those API calls whenever you do something, and if you block them, the site doesn't work anymore.

[–] hexagonwin@lemmy.sdf.org 6 points 2 days ago (2 children)

weird. old reddit loads fine for me with js completely disabled.

[–] Scrollone@feddit.it 4 points 2 days ago

That's what I miss about the good old web. Websites that just work, without JavaScript

[–] CodenameDarlen@lemmy.world 3 points 2 days ago (1 children)

Indeed, it'll work, you just won't be able to interact, upvote/downvote, join subreddits or comment etc....

If you'll not interact at all better to use RedLib (private frontend red.artemislena.eu), I think they'll hide even your IP address (not sure tho).

[–] hexagonwin@lemmy.sdf.org 1 points 1 day ago* (last edited 1 day ago)

yeah, those and old reddit (also available as tor onion site) is good.

at least a few years ago one could set some cookie to a weird value and bypass old reddit's vpn restriction page, not sure if it's got patched now..

[–] pirat@lemmy.world 13 points 2 days ago (6 children)

Could the fact that you don't see the requests in Firefox be a sign that uBO actually works better in Firefox and worse in Chrome? Possibly something about manifest V3 being implemented? Or do you think the Firefox DevTools are just less advanced? Or something else?

I'm only speculating, but I believe uBO behaves differently between Chromium-based and Gecko-based browsers because Chrome is restricting the abilities of extensions like uBO to do their thing.

[–] CodenameDarlen@lemmy.world 6 points 2 days ago

My point is, when you open both browsers without any extension you can see the HTTP requests in the Devtools > Network page, so it isn't related to uBO, for some reason I can't see this specific request on Firefox, but I can see in Chromium based.

I know that this request is happening in Firefox because I tested with a MITM Proxy, so I can see all my network traffic, I noticed the request is being made but Firefox DevTools doesn't show it for some reason.

I tested without uBO installed of course, but anyway, requests blocked by uBO are shown in red with "Blocked by uBO" in the "Transferred" column.

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