You’d be surprised how many SEO mistakes that hurt rankings are usually overlooked by website owners. These mistakes, like ignoring mobile optimisation or keyword stuffing, can creep up on you. At first, they don’t seem like a big deal, but over time, they can really hurt your site.
The scary part is you won’t see the damage right away but these issues build up and drag your rankings down when you least expect it. So why wait for that to happen? We’ve highlighted the most common SEO mistakes people make and how you can avoid them before they do real damage.
12 Common SEO Mistakes That Hurt Rankings

1. Not Doing Keyword Research
If you’re not using the right keywords, your website is invisible. Random keywords won’t help you rank and convert. You must use keyword research tools like Google Keyword Planner, Ahrefs, or SEMrush to do thorough keyword research.

Also consider creating content around long-tail keywords; these are search terms people use when they’re more specific about what they need. These keywords comparatively rank easily and are more likely to convert.
2. Keyword Stuffing
We’ve all seen it: the page that looks like it’s written for Google’s algorithm, not humans. Keyword stuffing is when you overuse a keyword in the hopes of ranking higher.
The problem? It feels unnatural, and search engines can spot it from a mile away. Worse, it can get you penalized.

Instead, focus on naturally integrating your keywords. It’s always a good idea to use synonyms and related terms and prioritize readability.
Consider Reading: How Many Keywords Should I Use for SEO? Find Out Now!
3. Duplicate Content
Duplicating content across multiple pages or copying from other sites might seem harmless but it can hurt your SEO.
Google gets confused when it sees the same content in multiple places and it can result in pages competing against each other for rankings.
If you need to reuse content, make sure you’re using canonical tags and always create fresh, unique content that answers specific questions or needs.
4. Slow Website
Site speed is not just for user experience; it’s a ranking factor. If your website takes so long to open, visitors will leave fast even before they even see your amazing content.
So consider it one of the biggest SEO mistakes that hurt rankings. It can also hurt your bounce rate, which Google watches closely. To improve speed, compress images, minimize JavaScript and use caching to speed up loading times. Google PageSpeed Insights can give you an idea of where you are and how to improve.

5. Poor Mobile Optimization
Users usually use mobile phones to do their searches on Google. That is the reason Google has switched to mobile-first indexing which means if your site doesn’t perform well on mobile, you’re hurting your rankings.
Responsive design is non-negotiable. Make sure your text is legible, buttons are clickable, and navigation is intuitive. A good test? Try browsing your site on a phone and see how it feels. If it’s hard to use, it’s time for an update.

6. Missing or Poor Meta Tags
If meta tags are missing or poorly written, you’re giving search engines no reason to show your page in search results. Think of your meta tags as a mini-advert for your page.
Make them compelling and relevant to the content, and also include your target keywords. A good meta tag can directly impact your click-through rate, which will definitely affect your ranking.
7. Broken Links (404 Errors)
Broken links don’t just annoy your visitors, they also hurt how search engines see your site. When someone clicks a link expecting information but ends up on a 404 error page instead, it’s a bad experience.
Over time, Google picks up on these issues, and it can drag down your SEO performance.

Check your website for broken links and either update or remove them. Tools like Screaming Frog can help you find these issues quickly.
8. Not Using HTTPS
Having an SSL certificate is a basic but essential step. Without HTTPS, your site is seen as insecure and will turn visitors away.
Plus, Google gives preference to secure sites and even displays a “Not Secure” warning for non-HTTPS sites. Get that SSL certificate sorted, and your site will be safer and more SEO friendly.

Also Read: How To Secure Your Website from Hackers: Proven Ways To Try
9. Not Using Internal Linking
Internal linking makes it easier for visitors to navigate your site and also assists Google in crawling and interpreting your content more effectively.
When you don’t use internal linking properly, you’re missing a huge opportunity to distribute your site’s authority and rank your pages better.
Make sure each page has links to other relevant content. It’s an easy win for both user experience and SEO.
10. Thin or Low Quality Content
If your pages don’t provide enough information, Google will see it as low quality content. Thin content doesn’t answer the user’s question or give them enough substance to stick around.
Google’s all about delivering the best possible answers to search queries. So, make your content long enough to cover the topic and keep it interesting. It should solve problems, provide insights or educate the reader in some way.
11. Not Optimising Images
Images make your site look better, but if they’re too heavy, your pages load slowly, which is frustrating for visitors. Stick to smaller file sizes, and choose the right type: JPEGs for photos and PNGs for graphics.
Also, add short image descriptions (called alt text). It helps people using screen readers and makes your content easier for search engines to understand.
12. No Sitemap or Robots.txt
A sitemap helps search engines know which pages to crawl and index. Without it Google can miss important pages on your site.
Similarly, robots.txt is important for telling search engines which parts of your site they can access and which they should ignore. Both are easy to set up, so don’t skip them. They’re basic to keeping your site SEO friendly.
FAQs
1. What affects SEO ranking?
- Content quality: Valuable, relevant content ranks better.
- Backlinks: Links from reputable sites boost rankings.
- User experience: Fast, mobile-friendly, and easy-to-navigate pages matter.
- Keywords: Relevant keywords help search engines understand your page.
- Technical SEO: Proper coding, secure site (HTTPS), and clean URLs help.
2. What is the main mistake that companies make in SEO?
Ignoring user intent by focusing too much on keywords and not enough on what users actually need.
3. What is the ranking difficulty in SEO?
It’s the challenge of ranking for a keyword, depending on how competitive and authoritative other sites targeting the same keyword are.
Final Thoughts
SEO isn’t just about rankings and checklists, it’s about making sure people can actually find and enjoy your website. The small mistakes we talked about might not seem like a big deal at first, but over time, they can quietly pull your site down.
The good news? You can avoid most of them with a little effort and the right support.
If you’re feeling stuck or just want someone to handle the messy parts, Brand ClickX is here to help. We dig deep, fix what’s holding you back, and help your website show up where it matters most.
Reach out today and let’s get your site ranking the way it should.