10 On-Page SEO Mistakes That Are Killing Your Rankings

You've published great content, but your pages still aren't ranking. Often the culprit isn't your writing — it's small on-page mistakes that quietly hold you back. Here are ten of the most common ones, and how to fix each.

1. Weak or duplicate title tags

Your title tag is the single biggest on-page signal. Every page needs a unique, keyword-focused title under 60 characters. Generic or repeated titles confuse search engines and cost you clicks.

2. Missing or dull meta descriptions

Meta descriptions don't directly rank you, but they drive click-through. Write a compelling, keyword-rich description under 155 characters for every important page.

3. No clear H1 — or several

Each page should have exactly one H1 that states its main topic, followed by a logical H2/H3 structure. Multiple or missing H1s blur your page's focus.

4. Ignoring search intent

Ranking is about matching intent. If someone wants to learn and your page tries to sell, you'll lose. Check what already ranks for your keyword and match that intent.

5. Keyword stuffing

Repeating your keyword unnaturally hurts more than it helps. Write for humans first; use your keyword in the title, H1, URL, and naturally throughout.

6. Poor internal linking

Internal links spread authority and help users navigate. Connect related pages with descriptive anchor text — aim for a few meaningful links per page.

7. Unoptimized images

Large images slow your site, and missing alt text wastes ranking and accessibility opportunities. Compress every image and add descriptive alt text.

8. Slow page speed

Speed is a ranking factor and a conversion factor. Test your key pages in PageSpeed Insights and fix what drags down your Core Web Vitals.

9. Not mobile-friendly

Google indexes mobile-first. If your pages aren't fully responsive, you're losing rankings with the majority of your audience.

10. No schema markup

Structured data helps search engines — and AI answer engines — understand your content. Adding schema can earn rich results and AI citations.

Fix them all, faster

Our On-Page SEO Pack gives you done-for-you templates for titles, meta descriptions, headings, internal linking, and schema — plus a checklist to catch every mistake above. Instantly downloadable in our store.