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Every time you upload something new, measure again
You'll come away knowing that speed isn't a one-time fix: you measure again every time you upload a large photo, a video, or a new font, and you keep a saved number to compare against.
By Yodai · Published September 6, 2026 · Updated October 12, 2026
Imagine you already tested your site on your phone with weak signal, say two bars, trimmed the weight down, and it opened in the time you wanted. The real question is different: what happens three months from now, after you've uploaded twenty new catalog photos and a welcome video on the homepage?
Nothing, if you don't check again. It's a common mistake: treating speed like a renovation you do once and it's done. It's not a renovation, it's a garden. Every photo you add, every video you upload, piles weight back on top of the weight you already removed.
When to retest, and when not to
You don't need to retest every time you change a price, fix a sentence, or add new hours. That's text: it weighs so little you won't even notice it.
Yes, it's needed every time you upload something the phone has to download in full before it can show it: a photo, a video, a new font. Those are the three things that can add the most weight at once. The difference is they're no longer a one-time test, they're something you check each time one of the three shows up again.
Think of it this way: you don't step on the scale on day one of your diet and call it done. You check it every time you eat something you know is heavy.
- 1Weigh the file before you upload it
Check the size of the photo or video before you put it on the site, not after. If a photo goes over the limit you've set for yourself (say, 300 KB), compress it before uploading, not once it's already live. - 2If it's a video, ask yourself if it really needs to load in full
A welcome video on the homepage almost never needs to start playing on its own. A still frame that turns into video when someone taps it works better. - 3Publish and measure right away
Using the same phone and the same signal as the first time, say two bars, open the page where you just added the new content and count how long it takes to load. - 4Compare it to your saved number
Write down somewhere permanent (a note, an email to yourself) the load time you got at the end of this course. If the new time is off by more than a second from that number, something you just uploaded needs to go.
- You don't spend a single minute while everything seems fine
- By the time you finally notice, a customer already noticed first, and left without buying
- The drop in bookings or sales shows up long before you even suspect the site is running slow
- One minute with your phone in hand, right after you publish
- The benchmark is always the same saved number, so there's no guessing involved
- The problem gets caught before a customer feels it, not after
Which one do I pick: Check every time you upload a large photo, a video, or a new font: it's the only one of the two that warns you in time. Save the surprise check for weeks when you truly haven't touched anything.
- You have your reference number saved: how long your site took to load when you finished this course
- You know the three things that call for a retest: a new photo, a new video, a new font
- You have a four-step routine to run every time you upload one of those
- You know that changing a price or a line of text doesn't call for a retest
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