The title tag is a single line of HTML in a page's <head>. It is also, page for page, the most consequential on-page element in SEO: it tells search engines what the page is about, and it is usually the headline someone reads before deciding whether to click.
<head>
<title>How to Choose a Laptop for Students | TechShop</title>
</head>It does not appear anywhere in the visible page content — that is the <h1>, which is a separate thing covered in the headings lesson.
Search engines truncate titles based on the pixel width of the rendered text, not a character count — so a title full of wide capital letters gets cut sooner than one of the same length in narrow lowercase ones. Any exact character limit you see quoted is an approximation of that, not a rule the engine applies.
The practical guidance that follows: keep titles reasonably short, and front-load the part that must survive. If the meaning still lands when the tail is cut off, the length is fine.
Your title is a strong suggestion, not a guarantee
Search engines sometimes rewrite the title shown in results — using your <h1>, your site name, or other text on the page — when they judge their version more useful for that particular query. You cannot force your title to be displayed. A clear, accurate, specific title is rewritten less often than a vague or misleading one.
Most sites use a consistent structure, with the site name appended:
<!-- Page-specific part first, brand last -->
<title>Laptop Repair Services in Kolkata | TechShop</title>
<title>How to Choose a Laptop for Students | TechShop</title>
<!-- The homepage is the one place brand-first makes sense -->
<title>TechShop — Laptop Sales and Repair in Kolkata</title>The brand goes last on inner pages because the page-specific part is what someone is searching for; on the homepage it goes first because the brand is the subject.
Two habits to avoid: stuffing the title with repeated keywords ("Laptop Repair, Laptop Service, Laptop Fix, Cheap Laptop Repair"), and writing a title that promises something the page does not deliver. Both hurt — the first looks like spam, the second sends people straight back to the results page.