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SEO guide · category 06 · on-page

On-page contentDoes each page say clearly what it’s about?

Titles, descriptions and headings are how search engines and searchers decide a page is the right answer. Duplicates and thin pages make that choice harder.

Last reviewed · 1 Oct 2026Reference article · 18 sources →Kalenux engineering
/shop/ · page titles3 of 5 need work
TRunning Shoes for Trail & Road | Shoptitle · 38 chars · unique✓ good
TShoptitle · generic✕ vague
TProducts | Shoptitle · on 214 pages✕ duplicate
D–meta description · missing✕ missing
H1Trail running shoesone H1 · matches title✓ good
unique, descriptive, one per page · illustrative
where your page shows up

One search result, built from three parts of your page.

Searchers decide from this block alone. Each line comes from something you control, even though Google has the final say.

1Trailhead Shophttps://shop.com › shop › trail
2Trail Running Shoes for Mud, Rock & Road | Trailhead
3Compare 40+ trail shoes by grip, drop and weight. Free returns within 60 days and a sizing guide for every model.
1URL & breadcrumbFrom the page URL, or breadcrumb markup. Readable paths help.
2Title linkMostly from the <title> tag; Google may use a heading instead.
3SnippetOften the meta description, sometimes text from the page, chosen per search.
simplified mock-up · illustrative
titles, before and after

Five real patterns, rewritten.

Most weak titles fall into a handful of patterns. Each fix makes the title more specific to its page.

Home→Trailhead: Trail Running Shoes & GearNames the business and what it sells
Products | Shop→Waterproof Hiking Boots | TrailheadUnique to the category, not the template
Buy Cheap Shoes Shoes Online Best Shoes→Budget Trail Shoes Under $80 | TrailheadRemoves repetition Google would rewrite
Blog post #214→How to Choose Trail Shoe Size (With Chart)Says what the reader will get
Trailhead | Trailhead | Trail Running Shoes | Road Running Shoes | Accessories→Road Running Shoes | TrailheadCuts boilerplate that would be truncated
illustrative
how headings outline a page

Headings are a table of contents, not a font size.

Read only the headings of a page. If the outline doesn’t make sense on its own, it doesn’t make sense to a crawler either.

Broken3 problems
H1Trailheadlogo as H1
H1Trail running shoessecond H1
H3Grip and treadskips H2
H3Weight
H2Free shipping!
H2Newsletter
Clearclear outline
H1Trail running shoes
H2How to choose
H3Grip and tread
H3Weight and drop
H2Sizing guide
H2Returns
from duplicate to unique

Duplication is a spectrum, not a yes-or-no.

How close two pages are decides what Google does with them.

Exact duplicateSame page at two URLs: tracking parameters, http and https, print versions.WHAT GOOGLE DOESGoogle picks one and folds the other in.
Near duplicateVariants that differ by a word: colour pages, city pages with the name swapped.WHAT GOOGLE DOESUsually consolidated; only one tends to rank.
ThinUnique, but too little to be useful on its own: stub tags, empty categories.WHAT GOOGLE DOESOften crawled but not indexed.
Unique and usefulIts own purpose, content and title.WHAT GOOGLE DOESEligible to rank on its merits.
content questions, answered

Three questions, shown rather than told.

Each one comes down to what actually appears in the results.

Q1

Is there a character limit for titles?

DESKTOPTrail Running Shoes for Mud, Rock, Road & Every Weather Condition | TrailheadMOBILETrail Running Shoes for Mud, Rock, Road & Every Weather Condition | Trailhead
NO FIXED LIMIT

Google truncates long titles to fit the screen, so the cut-off moves with the device. Put the important words first.

Q2

Will duplicate content get my site penalised?

/boots?color=red/boots?ref=mail/boots
→
SHOWN/boots
USUALLY NOT

Duplicates aren’t punished unless they’re meant to deceive. Google shows one version; the others just don’t rank.

Q3

Does Google use my meta description?

SEARCH: “trail shoe returns”
meta descriptionCompare 40+ trail shoes by grip, drop and weight.
text on the page · chosenFree returns within 60 days on every pair, even worn outdoors.
SOMETIMES

The snippet is picked per search. A specific description gives Google a good option, but page text can win when it matches better.

illustrative
Reference article · 18 sources

How Google writes your search result, and treats duplicates.

On-page content covers the parts of a page that tell people and search engines what it is about: the <title> element, the meta description, headings, body text and images. Google uses them to build the title link and snippet shown in results, and to decide whether a page is a duplicate of another.

KALENUX REFERENCETitles, snippets and duplicate content
  1. 1Overview
  2. 2Title element and title links
  3. 3Site names
  4. 4Meta descriptions and snippets
  5. 5Headings
  6. 6Duplicate content
  7. 7Helpful content and quality
  8. 8Images and alt text
  9. 9Meta tags Google ignores
  10. 10Common misconceptions
18 references · cite-readyRead the article →
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