Image Compression Is the SEO Win You're Probably Ignoring

kelen.nyc.mn — Wed, 14 Oct 2026 07:46:21 +0000

I build and run ZipPic — known as zippic.app internationally and zippic.cn for Chinese users — a free toolkit of 18 media tools that run entirely in your browser. I spend most of my days thinking about one surprisingly neglected topic: how much your images are costing you in search rankings.

Here's the thing nobody tells you when you're obsessing over meta tags and backlinks: images are typically 50–70% of a page's total weight. And page speed — specifically Largest Contentful Paint — is a confirmed Google ranking factor. In other words, that beautiful 4MB hero PNG is quietly dragging your SEO down.

Why I care about this

A while back I was optimizing my own site's Core Web Vitals and discovered something embarrassing: my tool pages were slow because of the demo screenshots. The irony of a compression tool shipping uncompressed images was not lost on me.

That experience shaped how I think about image SEO. It's not a separate discipline — it's just performance work with a search-ranking payoff.

The three levers that actually matter

1. Pick the right format

This is the highest-ROI change most sites can make:

Photos → WebP or AVIF (typically 30–50% smaller than JPG at the same quality)
Graphics with transparency → WebP instead of PNG
Simple icons/logos → SVG, always

I converted my entire site's imagery to WebP and watched LCP drop by over a second on mobile. One format change, no redesign.

2. Compress before you upload, not after

Most CMS "optimization" plugins compress images after they've already been uploaded at full size. That's backwards. The damage — slow uploads, wasted storage, oversized originals sitting on your CDN — is already done.

My workflow now: compress locally first, then upload the already-optimized file. Because zippic runs 100% in the browser via WebAssembly, there's nothing to install and no file ever leaves my machine — which matters when you're handling client assets.

3. Batch it or you won't do it

The reason most sites ship unoptimized images isn't ignorance — it's friction. Nobody wants to compress 40 blog images one by one.

Bulk processing changed this for me. Drag in a folder of images, pick WebP at 80% quality, download them all. Five minutes, done. If your tooling makes the right thing the easy thing, image SEO stops being a chore.

What the numbers look like

On a recent pass over my own content pages:

Average image size: 1.2MB → 180KB (WebP, visually identical)
Mobile LCP: 3.8s → 2.1s
The pages that got faster also started ranking better for their target keywords within a few weeks

Correlation isn't causation, and I won't pretend image compression alone moves rankings. But when Google explicitly tells you speed matters, and images are most of your page weight, the math isn't complicated.

My honest take

You don't need my tool for this — Squoosh, Sharp, and plain old cwebp all work. What you need is the habit: right format, compressed before upload, in batches.

I built zippic because I wanted that workflow to have zero friction: no signup, no upload limits, no files leaving the browser. If that sounds useful, it's free at zippic.app — or zippic.cn if you're in China. 18 tools, 11 languages, everything local.

But even if you use something else: go compress your images this week. Your LCP — and probably your rankings — will thank you.

Disclosure: I'm the developer of ZipPic. The performance numbers above are from my own site.

8 Mac Apps for Maximum Efficiency (With Minimum Software)

kelen.nyc.mn — Wed, 14 Oct 2026 06:41:06 +0000

The best Mac setup isn't the one with the most apps. It's the one where every app earns its place. Here are 8 apps that cover AI, knowledge management, window control, screenshots, system cleanup, launching, and package management — nothing more, nothing less.

1. Claude Desktop (with Cowork)

The AI assistant, now living natively on your Mac. The Cowork feature is the real story here: it turns Claude into something closer to a colleague than a chatbot, able to work alongside you on documents, research, and writing tasks.

Why it's on the list: If you do any kind of text-heavy work — writing, summarizing, brainstorming — having Claude one click away beats switching to a browser tab every time.

2. Obsidian (+ AI plugins)

A Markdown-based note app that stores everything as plain local files. Pair it with an AI plugin (like the Claudian plugin) and your notes become a searchable, AI-augmented second brain.

Why it's on the list: Your knowledge stays yours — local files, no lock-in — while AI makes retrieval and synthesis dramatically faster. The 20-minutes-to-second-brain promise is real if you actually write things down.

3. Chrome

Yes, Safari is more power-efficient. But Chrome wins on ecosystem: extensions, dev tools, and seamless Gmail/Google Workspace integration.

Why it's on the list: If your work lives in Google's ecosystem, fighting Safari's quirks isn't worth the battery savings. Pick the browser that matches your workflow.

4. Rectangle

Free, open-source window management. Drag windows to screen edges to snap them into halves, thirds, or quarters — plus keyboard shortcuts for everything.

Why it's on the list: macOS's built-in window tiling is still catching up. Rectangle is lightweight, free, and instantly makes multitasking on a 13" screen bearable.

5. iShot

A clean, free screenshot and screen-recording tool. The rounded-corner screenshots alone make your docs and tweets look 10x more professional.

Why it's on the list: macOS screenshots are fine; iShot makes them beautiful — annotations, rounded corners, and quick sharing without opening another editor.

6. Lemon

A junk/cache cleaner for Macs with tight storage. Finds the gigabytes of caches, logs, and leftovers that macOS never cleans up itself.

Why it's on the list: Especially valuable on 256GB machines. Run it monthly and stop wondering where your disk space went.

7. Raycast

A Spotlight replacement: blazing-fast launcher with a calculator, clipboard history, window management, and hundreds of extensions.

Why it's on the list: Clipboard history alone justifies the install — stop losing that thing you copied three copies ago. The extension store turns it into a command center.

8. Homebrew

The package manager for macOS. Install dev tools, CLIs, and even GUI apps with one command. Also the prerequisite for running things like Claude Code and AI agents locally.

Why it's on the list: If you touch the terminal at all, Homebrew is non-negotiable. brew install beats hunting down .dmg files every single time.

The philosophy

Eight apps. No duplicates, no "just in case" installs. Each one replaces either a worse built-in tool or an entire category of clutter.

What's on your must-install list? I'm always looking for app number nine.

DEV Community: kelen.nyc.mn