SEO Help Center

General SEO Information, Glossary of Terms etc.

139 articles in this collection
Written by Simon Lesser and Wilfred Yeung

Site Issues

X-robots noindex resources

Written by Wilfred Yeung
Updated over a week ago

Resources blocked by robots.txt

Written by Wilfred Yeung
Updated over a week ago

Twitter card description too long

Written by Wilfred Yeung
Updated over a week ago

Twitter card missing

Written by Wilfred Yeung
Updated over a week ago

Twitter card incomplete

Written by Wilfred Yeung
Updated over a week ago

Multiple Rel=Canonical Tags

Written by Wilfred Yeung
Updated over a week ago

Open Graph tags missing

Written by Wilfred Yeung
Updated over a week ago

Open Graph tags incomplete

Written by Wilfred Yeung
Updated over a week ago

Multiple hreflang languages referencing the same URL

Written by Wilfred Yeung
Updated over a week ago

Hreflang and HTML lang mismatch

Written by Wilfred Yeung
Updated over a week ago

Open Graph URL not matching canonical

Written by Wilfred Yeung
Updated over a week ago

Missing HTML lang value

Written by Wilfred Yeung
Updated over a week ago

Multiple URLs referenced for the same hreflang language

Written by Wilfred Yeung
Updated over a week ago

Hreflang to non-canonical

Written by Wilfred Yeung
Updated over a week ago

Non-reciprocal hreflang tag

Written by Wilfred Yeung
Updated over a week ago

Missing x-default hreflang

Written by Wilfred Yeung
Updated over a week ago

Redirecting hreflang link

Written by Wilfred Yeung
Updated over a week ago

Invalid HTML lang value

Written by Wilfred Yeung
Updated over a week ago

Broken hreflang link

Written by Wilfred Yeung
Updated over a week ago

No self-referencing hreflang tag

Written by Wilfred Yeung
Updated over a week ago

Empty or missing hreflang

Written by Wilfred Yeung
Updated over a week ago

Rel=Canonical Empty / Missing

Written by Wilfred Yeung
Updated over a week ago

Meta Robots NoFollow

Written by Wilfred Yeung
Updated over a week ago

Blocked by robots.txt

Written by Wilfred Yeung
Updated over a week ago

Blocked by X-Robots Tag

Written by Wilfred Yeung
Updated over a week ago

Blocked by Meta Robots

Written by Wilfred Yeung
Updated over a week ago

No Keywords in Body Text

Written by Wilfred Yeung
Updated over a week ago

Mixed Redirects

Written by Wilfred Yeung
Updated over a week ago

Invalid Characters in URL

Written by Wilfred Yeung
Updated over a week ago

No Links on Page

Written by Wilfred Yeung
Updated over a week ago

Meta Refresh Tag

Written by Wilfred Yeung
Updated over a week ago

Meta Keywords Too Long

Written by Wilfred Yeung
Updated over a week ago

Body Text Too Short

Written by Wilfred Yeung
Updated over a week ago

No Keywords in URL

Written by Wilfred Yeung
Updated over a week ago

Infinite / Looped Redirect

Written by Wilfred Yeung
Updated over a week ago

Redirect Chain

Written by Wilfred Yeung
Updated over a week ago

URL Too Long

Written by Wilfred Yeung
Updated over a week ago

Too Many URL Parameters

Written by Wilfred Yeung
Updated over a week ago

Too Many Links on Page

Written by Wilfred Yeung
Updated over a week ago

Duplicate Page Content

Written by Simon Lesser
Updated over a week ago

No Keywords in Meta Keywords

Written by Simon Lesser
Updated over a week ago

Invalid hreflang value

Written by Wilfred Yeung
Updated over a week ago

Invalid Content Type

Written by Wilfred Yeung
Updated over a week ago

Duplicate Meta Keywords

Written by Simon Lesser
Updated over a week ago

Alt text too long

Written by Wilfred Yeung
Updated over a week ago

Meta Keywords Empty / Missing

Written by Simon Lesser
Updated over a week ago

Alt text empty / missing

Written by Wilfred Yeung
Updated over a week ago

No Keywords in Headings

Written by Simon Lesser
Updated over a week ago

Asset is linked via redirect

Written by Wilfred Yeung
Updated over a week ago

Multiple H1s

Written by Simon Lesser
Updated over a week ago

Broken images

Written by Wilfred Yeung
Updated over a week ago

H1 Too Short

Written by Simon Lesser
Updated over a week ago

H1 Empty / Missing

Written by Simon Lesser
Updated over a week ago

No Keywords in Meta Description

Written by Simon Lesser
Updated over a week ago

Multiple Meta Descriptions

Written by Simon Lesser
Updated over a week ago

Meta Description Too Long

Written by Simon Lesser
Updated over a week ago

Duplicate Meta Description

Written by Simon Lesser
Updated over a week ago

Meta Description Empty / Missing

Written by Simon Lesser
Updated over a week ago

No Keywords in Title

Written by Simon Lesser
Updated over a week ago

Multiple Page Titles

Written by Simon Lesser
Updated over a week ago

Title Too Short

Written by Simon Lesser
Updated over a week ago

Title Too Long

Written by Simon Lesser
Updated over a week ago

Duplicate Titles

Written by Simon Lesser
Updated over a week ago

Title Empty / Missing

Written by Simon Lesser
Updated over a week ago

5xx Error

Written by Simon Lesser
Updated over a week ago

4xx Error

Written by Simon Lesser
Updated over a week ago

3xx Redirect

Written by Simon Lesser
Updated over a week ago

302 Redirect

Written by Simon Lesser
Updated over a week ago

SEO Glossary of Terms

Dark Traffic

Written by Simon Lesser
Updated over a week ago

Qihoo 360

Written by Wilfred Yeung
Updated over a week ago

Regular Expression

Written by Wilfred Yeung
Updated over a week ago

Mixed Redirect

Written by Wilfred Yeung
Updated over a week ago

Looped Redirect

Written by Wilfred Yeung
Updated over a week ago

Naver

Written by Wilfred Yeung
Updated over a week ago

H1 Tag

Written by Wilfred Yeung
Updated over a week ago

Yandex

Written by Wilfred Yeung
Updated over a week ago

Sogou

Written by Wilfred Yeung
Updated over a week ago

Spider

Written by Wilfred Yeung
Updated over a week ago

Meta Description

Written by Wilfred Yeung
Updated over a week ago

PPC

Written by Wilfred Yeung
Updated over a week ago

Meta Keywords Tag

Written by Wilfred Yeung
Updated over a week ago

HTTP Response Header

Written by Wilfred Yeung
Updated over a week ago

Robot

Written by Wilfred Yeung
Updated over a week ago

X-Robots Tag

Written by Wilfred Yeung
Updated over a week ago

Meta Robots Tag

Written by Wilfred Yeung
Updated over a week ago

JavaScript

Written by Wilfred Yeung
Updated over a week ago

Thin Content

Written by Wilfred Yeung
Updated over a week ago

Java (Java Applet)

Written by Wilfred Yeung
Updated over a week ago

Keyword Stuffing

Written by Wilfred Yeung
Updated over a week ago

Heading Tags (h1-h6)

Written by Wilfred Yeung
Updated over a week ago

Web Crawler

Written by Wilfred Yeung
Updated over a week ago

Infinite Redirect

Written by Wilfred Yeung
Updated over a week ago

HTTP Status Code

Written by Wilfred Yeung
Updated over a week ago

HTTP 200 (OK) Status

Written by Wilfred Yeung
Updated over a week ago

Crawl Budget

Written by Wilfred Yeung
Updated over a week ago

Dead End Page

Written by Wilfred Yeung
Updated over a week ago

Body Text

Written by Wilfred Yeung
Updated over a week ago

CMS (Content Management System)

Written by Wilfred Yeung
Updated over a week ago

Cloaking

Written by Wilfred Yeung
Updated over a week ago

Conversion

Written by Wilfred Yeung
Updated over a week ago

Baidu

Written by Wilfred Yeung
Updated over a week ago

Black Hat

Written by Wilfred Yeung
Updated over a week ago

AJAX

Written by Wilfred Yeung
Updated over a week ago

500 Internal Service Error

Written by Wilfred Yeung
Updated over a week ago

503 Service Unavailable Error

Written by Wilfred Yeung
Updated over a week ago

302 Temporary Redirect

Written by Wilfred Yeung
Updated over a week ago

De-Indexation

Written by Wilfred Yeung
Updated over a week ago

Canonical Page

Written by Wilfred Yeung
Updated over a week ago

Robots.txt

Written by Wilfred Yeung
Updated over a week ago

Rel="canonical" Tag

Written by Wilfred Yeung
Updated over a week ago

XML Sitemap

Written by Wilfred Yeung
Updated over a week ago

301 Permanent Redirect

Written by Wilfred Yeung
Updated over a week ago

Crawl

Written by Wilfred Yeung
Updated over a week ago

Title Tag

Written by Wilfred Yeung
Updated over a week ago

Static URL

Written by Wilfred Yeung
Updated over a week ago

Dynamic URL

Written by Wilfred Yeung
Updated over a week ago

Duplicate Content

Written by Wilfred Yeung
Updated over a week ago

SERP Snippet

Written by Wilfred Yeung
Updated over a week ago

HTML Head Element

Written by Wilfred Yeung
Updated over a week ago

Webspam

Written by Wilfred Yeung
Updated over a week ago

Click-Through Rate

Written by Wilfred Yeung
Updated over a week ago

Indexation

Written by Wilfred Yeung
Updated over a week ago

SERP

Written by Wilfred Yeung
Updated over a week ago

Index

Written by Wilfred Yeung
Updated over a week ago

Rel=next and Rel=prev Tags

Written by Wilfred Yeung
Updated over a week ago

Link Juice

Written by Wilfred Yeung
Updated over a week ago

URL Parameter

Written by Wilfred Yeung
Updated over a week ago

Nofollow attribute

Written by Wilfred Yeung
Updated over a week ago

Anchor Text

Written by Wilfred Yeung
Updated over a week ago

404 Not Found Error

Written by Wilfred Yeung
Updated over a week ago

Organic CTR

Written by Simon Lesser
Updated over a week ago

Keyword Difficulty

Written by Simon Lesser
Updated over a week ago

Dragon Rank

Written by Simon Lesser
Updated over a week ago

Traffic Index

Written by Simon Lesser
Updated over a week ago

Search Volume

Written by Simon Lesser
Updated over a week ago

Preferred Landing Page

Written by Simon Lesser
Updated over a week ago

Organic Visibility Score

Organic Visibility Score is a metric that quickly summarizes your organic ranking performance. Learn how it's calculated.

Written by Simon Lesser
Updated over a week ago

Page Authority

Written by Simon Lesser
Updated over a week ago

Domain Authority

Written by Simon Lesser
Updated over a week ago