Tag Archives: cache

Why Clearing Your Phone’s Cache Might Not Be the Speed Boost You’re Looking For


It’s 2023, and if I see one more “Clear your cache for a faster browsing experience!” article, I might just throw my router out of the window. Seriously, the persistence of this piece of advice is baffling to me. And if we’re being honest, this advice isn’t just antiquated—it’s misleading.

Caches: A Brief Refresher

Browser caches store website data so that when you revisit a site, it can load faster by pulling locally stored data rather than redownloading everything from the server. This mechanism isn’t a new concept; it’s foundational to how web browsers have functioned for decades.

The Myth of the Slow Cache

Enter the narrative that a “mature” cache (one that’s been accumulating data for a while) will slow down your browsing. Picture caches as attics full of junk, needing occasional spring cleaning.

But let’s get technical for a moment:

  1. Cache Lookup Time: While this is generally faster than fetching from the network, a disorganized cache could, theoretically, introduce delays.
  2. Stale Cache Data: Old and outdated data might break website functionality if not properly validated. But, a modern browser’s validation system ensures that this is rarely a problem.
  3. Cache Pollution: Rarely visited website data taking up cache space? Maybe, but today’s browsers are designed to manage and prioritize cache effectively.
  4. Mismatched Cached Resources: While development changes can lead to outdated cache versions, browsers today are optimized to handle such mismatches with grace.

The perennially posted cache and cookie-clearing articles, if they bother to actually provide any technical basis, might mention these as potential pitfalls as justification, but they are also precisely what browser developers have spent years refining. Modern browsers are optimized to handle these scenarios efficiently, ensuring users receive the fastest and most reliable browsing experience.

Seriously, I’m picturing a browser development team lead scheduling an urgent meeting, “Everybody! I just read an article on CNET, and we have a big problem with caching we have to fix! Thank goodness the article keeps getting posted, or I might have missed it!”

Should We Automate Cache Cleaning?

If clearing the cache was this panacea, why wouldn’t operating systems just automate the process? An automated monthly clear-out, maybe? But they don’t, do they? Maybe because doing so doesn’t lead to the performance boosts that some claim?

If It Ain’t Broke…

Advising users to routinely clear their cache is like suggesting they defragment their SSDs—a relic from a bygone tech era.

We are in an age in which mobile developers are deploying sophisticated optimizations like intelligent charging to prolong battery-life, pre-loading web pages the user is likely to click on, and similar. Are we still to imagine developers would pour resources into such innovations yet neglect fundamental features? To argue that there’s some endemic issue with cache implementation is borderline absurd.

Final Thoughts

Before jumping on the “clear your cache” bandwagon, let’s discern fact from fiction. A cache is there to speed up browsing. Emptying it, especially for an average user, is counterproductive. It’s 2023, and we ought to know better than to repost dated, debunked tips as fresh tech advice.

So, the next time you see that all-too-familiar recommendation, or someone advises you to clear your cache for that “extra speed”, point them to this article. Or maybe I’m wrong, and no one is posting those articles anymore, it’s just that I have an outdated cache and I get decades-old content when I visit CNET. 😅