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Title Tag Best Practices: Length, Keywords, and Duplicates
A practical guide to the title tag: what it controls, how long it should be in pixels, how to write one that earns the click, and how to fix duplicates.
Run a fresh DomainLens audit and use the report as your priority list.
What the title tag does
The <title> element is the single most important on-page SEO tag. It is the clickable headline in the search results, the label on the browser tab, and the default title when someone shares your page. Google uses it as a strong hint about what the page is about — and while it sometimes rewrites titles it judges unhelpful, a clear, relevant title is still your best control over both rankings and click-through.
Because it does double duty — a ranking signal and a marketing headline — the best titles are written for a human deciding whether to click, using the words that human would search for.
Length: think pixels, not characters
Google truncates titles by pixel width, not character count, so "50–60 characters" is only a rough guide. On desktop the limit is roughly 580 pixels; wide characters (W, M, capital letters) eat that budget faster than narrow ones (i, l, t). A 60-character title of narrow letters may fit, while a 55-character title in caps gets cut with an ellipsis.
The practical rule: front-load the important words so the title still makes sense if it is truncated, and keep the most useful, distinguishing information in the first ~50 characters.
How to write a title that earns the click
- Put the primary keyword near the front, phrased the way people actually search.
- Make each title unique and specific to that page — the title should answer "which page is this?" at a glance.
- Add a differentiator: a benefit, a number, a year, or a qualifier that sets it apart from competing results.
- Include the brand at the end for recognisable sites (Page Topic | Brand), and drop it if space is tight.
- Match search intent: a "how to" query wants a how-to title, a product query wants the product and a buying signal.
Common title tag mistakes
- Stuffing keywords ("Cheap Shoes, Buy Shoes, Shoes Online, Shoes") — it reads as spam and Google may rewrite it.
- Leaving the CMS default, so dozens of pages share "Home" or the site name only.
- Writing titles longer than the pixel budget so the useful part is cut off.
- Front-loading the brand on every page, wasting the most valuable pixels on a word searchers already know.
- A title that does not match the H1 or the page content, which erodes trust and click-through.
Duplicate and templated titles
Duplicate titles are usually a template problem, not a one-page problem: a category or product template that outputs the same title pattern across hundreds of URLs, or pagination that repeats page 1’s title on every page. Duplicates make it hard for Google to tell your pages apart and dilute the relevance of each.
Fix them at the template: build titles from the unique fields the page already has (product name, category, location, page number) so every URL gets a distinct, descriptive title without manual work.
How DomainLens checks your titles
DomainLens reads the rendered <title>, flags it when it is missing, empty, too long for the SERP, or duplicated across the pages it sees, and shows you the exact value so you can judge it against the page’s intent.
Treat its finding as the starting point: the tool tells you a title is too long or generic; you decide the wording that matches what your searcher wants and what makes your result the one worth clicking.