Most websites that struggle to rank are not suffering from exotic algorithmic penalties or cutthroat competition. They are held back by a small set of very common, very fixable SEO mistakes. After analysing thousands of URLs with SEOScan, the same five issues appear again and again. Here is what they are and how to fix them.
Mistake 1: Missing or Duplicate Title Tags
The page title is the single most important on-page SEO element. It tells Google what the page is about and it appears as the blue link in search results. Missing title tags leave Google to guess — and it often guesses wrong, pulling in random text from your page. Duplicate title tags (the same title on multiple pages) force Google to pick a winner arbitrarily, splitting any ranking power between them. Every page needs a unique, descriptive title between 50 and 60 characters. A free SEO checker like SEOScan will flag both missing and duplicated titles instantly.
Mistake 2: Ignoring Meta Descriptions
Meta descriptions do not directly affect rankings, but they have a huge effect on click-through rate. A well-written meta description is your 160-character sales pitch to someone scanning search results. If you leave it blank, Google will auto-generate a snippet — often a clunky extract that undersells your page. Aim for 130 to 155 characters, include your target keyword naturally, and end with a mild call to action. SEOScan checks every page you analyse and shows you the exact character count so you can tune it perfectly.
Mistake 3: Images Without Alt Text
Images are invisible to search engines without alt text. Google cannot see your photos — it reads the alt attribute to understand what the image contains. Missing alt text is not just an SEO problem; it is also an accessibility failure that affects users with visual impairments. The fix is straightforward: add a short, descriptive alt attribute to every meaningful image on your page. Decorative images can use an empty alt attribute (alt="") to signal they can be skipped. SEOScan counts exactly how many of your images are missing alt text so you know the scope of the work.
Mistake 4: Wrong Heading Structure
Your heading tags (H1 through H6) are the outline of your page from Google's perspective. The most common mistake is having either no H1, or multiple H1s. There should be exactly one H1 per page — it is the title of your content. Everything else should use H2s and H3s in a logical hierarchy. A second common mistake is skipping heading levels (jumping from H1 to H4), which makes the structure harder to parse. Use headings to tell a story: H1 is the topic, H2s are the main sections, H3s are the sub-points within each section.
Mistake 5: No Canonical URL
Many websites accidentally serve the same content at multiple URLs — for example, both https://example.com and https://www.example.com, or both /page and /page?ref=newsletter. Without a canonical tag, Google sees these as separate pages competing with each other. A canonical tag is a single line of HTML in your page head that tells Google which URL is the definitive version. It consolidates ranking signals and prevents dilution. Every page you publish should have a self-referencing canonical tag. Run any page through SEOScan and it will tell you immediately whether a canonical is present.