ブログ 画像 最適化 SEO: The Mistakes to Avoid and What Actually Works
A concrete, expert breakdown of what goes wrong with ブログ 画像 最適化 SEO and exactly how to fix it.
Nine times out of ten, hard-to-read writing isn't a content problem — it's a one-sentence-too-long problem.
One idea per sentence: the line between writing people finish and writing people skip
1. The Mistake: "This tool is easy to use, has a rich feature set, and is a convenient service that we can recommend to many people." (three claims in one sentence)
The Fix: "This tool is easy to use. It's feature-rich too. That's why we recommend it to a lot of people." (one idea per sentence, split into three)
Do This: Find any sentence with 3+ commas doing the connecting work, and split it into 2-3 separate sentences at the natural idea boundaries.
2. The Mistake: Uploading images as raw JPG/PNG and publishing without checking load speed.
The Fix: Converting images to WebP before uploading, then measuring LCP (Largest Contentful Paint, a load-speed metric) before and after.
Do This: Measure LCP with your browser's dev tools (e.g. Lighthouse) before and after the WebP conversion and record both numbers — file size typically drops by roughly 20-30%.
3 Steps You Can Run Today
- Pick a recent piece of your own writing and find a sentence with 3 or more commas.
- Split that sentence into 2-3 sentences, one idea each.
- Pick one image you're using and check the file-size difference if converted to WebP.
Rewriting for one idea per sentence, or adjusting the same text for multiple platforms by hand, eats time fast.
Don't Over-Split
Splitting too aggressively can start to read as choppy — aim for roughly 3-4 sentences per paragraph as a rough ceiling.
FAQ
Q. What does "one idea per sentence" actually mean?
A. It's the rule of putting exactly one claim in each sentence. The more claims you chain together with commas, the easier it is for a reader to lose the thread mid-sentence.
Q. How fast will rewriting for one idea per sentence change readability?
A. Rewrite a single article and you'll see the comma count drop immediately — the LCP improvement from a WebP conversion is measurable in one pass too.
Q. Does the tool actually save time on rewriting or image conversion?
A. Splitting comma-heavy sentences and converting image formats by hand are both tedious, so automating them shows a clear, measurable time difference.
Wrap-up: Your Next Step
The gap between writing that gets read and writing that gets skipped isn't vocabulary — it's how many claims are packed into each sentence. Paste your latest draft into the tool linked in this article and see the before/after for yourself.