SEO terms simply explained
Technical SEO, Content & Google Topics

SEO Wiki

118 SEO terms in the wiki: technical SEO, content, indexing, snippets and modern search topics at a glance.

In the Seitenreport SEO Wiki you will find important terms from Technical SEO, Indexing, Crawling, Structured data, Content, Snippets and Rankings – understandably explained and with practical advice for website operators, agencies and developers.

Technical SEO

Canonical, hreflang, robots, status codes, sitemaps, crawling and indexing.

Snippets and Visibility

Meta Descriptions, CTR, SERPs, Structured Data, Rich Results and Featured Snippets.

Practice and implementation

Quick wins, frequent errors and suitable tools for direct testing of your website.

How to Use the SEO Wiki Most Sensibly

Use the wiki not only to look up individual terms, but as an abbreviation from the definition to the concrete measure. Particularly strong is the combination of wiki, SEO tools, search console evaluation and technical testing.

Recommended procedure
  1. Concept of understanding
  2. Check your own URL or website
  3. Implement priorities by impact

Recommended entry pages in the wiki

These six main pages aggregate many SEO signals, internal references and practical references. From here, users and search engines get to the appropriate topic clusters faster.

Examine internal links professionally →
Newly added

Modern SEO signals and AI visibility

Complementary wiki pages on Offpage SEO, Entities, E-E-A-T, SERP changes and AI-powered search.

All terms
Off-page SEO

Offpage SEO includes all external signals that strengthen the trust, authority and visibility of a website outside of its own pages.

Entity SEO

Entity SEO ensures that search engines can clearly identify a brand, person, organization or topic and assign it correctly.

Topical Authority

Topical Authority describes the perceived topic authority of a website in a clearly defined topic field.

E-E-A-T

E-E-A-T stands for Experience, Expertise, Authoritativeness and Trust. The concept helps to make content more credible, helpful and trustworthy.

Knowledge Graph

A knowledge graph connects entities and relationships. For SEO, it is important that brands, people, places and topics are consistently recognizable.

Semantic SEO

Semantic SEO optimizes content based on meaning, context, and search intentions instead of just repeating individual keywords.

Zero Click Search

Zero Click Search refers to search queries where users receive their response directly in the search results and do not click on a website.

AI Overviews

AI Overviews are AI-generated summaries in search results. For SEO, clear sources, helpful content and machine-readable structure count.

AI visibility

AI visibility describes whether brands, content and sources are found, mentioned and displayed correctly in AI-powered search and response systems.

Linkable assets

Linkable assets are content or tools that are so useful, demonstrable, or unique that other websites voluntarily refer to them.

Brand Mentions

Brand Mentions are mentions of a brand on the web. They can be linked or unlinked and help to make reputation and thematic relevance visible.

Nofollow, Sponsored and UGC

Nofollow, sponsored, and ugc are link attributes that help website operators identify the relationship with linked pages more cleanly.

Discover by theme

Instead of searching alphabetically, you can also enter directly via topic clusters.

A–Z Navigation

Jump directly to a letter or additionally filter through the search.

Definitions

All terms (A–Z)

Above the fold
The visible area without scrolling – important for UX.
Backlinks
External links to your website – quality counts.
Bad Neighborhood
Problematic Link Environments & Risks.
Accessibility
Accessibility for all user groups.
Black hat SEO
Manipulative methods – often against guidelines.
Breadcrumb scheme
Breadcrumbs and hierarchy are machine-readable.
Call-to-action button
Clear call to action – conversion-relevant.
Canonical Tag
Preferred URL for similar content.
CDN
Content Delivery Network – Performance & Delivery.
Click through Rate
Click Rate from SERPs/Ads – Snippet optimization helps.
Cloaking
Other content for bot vs. users – usually risky.
Content Management System
CMS – Manage and publish content.
Content relevance
How well content fits the search intention.
Core Web Vitals
LCP, INP and CLS in a practical way.
Crawl budget
Control crawling resources of large websites wisely.
Crawlable links
Why real links are important for discovery and internal SEO.
Crawlers
Bots that retrieve and analyze/index pages.
Delisting
Removal from the Index – Causes & Measures.
Doctype
Document type – affects rendering/standards.
Domain Trust
Trust signals – including links/history/quality.
Duplicate content
Double content – Canonicals, Redirects, Noindex.
E-Commerce URL structure
Shop URLs, categories and filter logic plan cleanly.
E-E-A-T
Expertise, Authoritativeness, Trustworthiness.
Faceted navigation
Control filter and parameter URLs clean for SEO.
FAQ scheme
Use FAQ markup sensibly and cleanly.
Favicon
Small icon – branding, tabs, partly SERP/UX.
Featured snippets
Understand and optimize highlighted responses in the SERPs.
Geotargeting
Regional control/signals for target markets.
Google Disavow Tool
Let the left be devalued – use it carefully.
Google Penalty
Punishment – analyze causes, correct them cleanly.
Google Search Console
Indexing, Sitemaps, Core Web Vitals, Performance.
Google Trends
Interest trajectories – keyword/topic research.
Checking Google indexing
Check if URLs are indexed or indexable.
Googlebot
Google's crawler.
Google's ranking systems
Google ranking systems without SEO myths.
hreflang
Language/region targeting for international sites.
Indexable file types
Which file types are indexable and how to control them.
Indexing
How pages get into the Google index or are blocked.
JavaScript SEO
Rendering, hydration and crawlability of modern websites.
JavaScript Structured Data
Implement JSON-LD robustly via JavaScript.
Keyword stuffing
Unnatural repetition – risk to quality.
Keyword density
Occurrence in the text – not a rigid goal, but relevant.
Keyword research
Topics, Intent, Competition – Basis for Content.
Landing page
Landing page for Traffic/Intent – SEO & Conversion.
Readability
Structure, language, scannability – UX and often SEO.
Link Juice
“Left Force” – internal/external distribution.
Link Popularity
Number/quality of links – not just quantity.
Link Purchase
Paid links – note labeling/guidelines.
Linkbait
Content that voluntarily attracts links.
Link building
Building links – clean, sustainable, relevant.
Linkfarm
Link networks – often risky/spam.
Local SEO
Local visibility – profiles, NAP, ratings.
Long-tailed keyword
Specific searches – often better conversions.
Meta Description
Snippet text – affects click-through rate.
Meta Robots
Index/follow control per page.
Mobile First
Mobile version as the primary basis for evaluation.
Mobile Touch Icon
Icon for Homescreen/Bookmarks on mobile devices.
One-pager
Website on a page – structure/anchor important.
Open graph
Social meta for preview cards (og:title etc.).
Page Experience
Understand UX, HTTPS and performance as an overall picture.
Permalink
Stable URL structure – important for sharing/SEO.
Product structured data
Product markup for rich results and shop SEO.
Rich results
Advanced search results through structured data.
Robots.txt
Control crawling without confusing indexing.
Robots.txt vs. noindex
The difference between crawl lock and indexing control.
Search Essentials
Google’s modern SEO basics and minimum requirements.
SERP
Search Engine Results Page – Snippets & Features.
Shortlink
Short URL – Resolve tracking/forwarding cleanly.
Site migration
Relaunches, domain changes and URL changes plan SEO-safely.
Sitemap
XML Sitemap – Help for crawling/indexing.
Social Signals
Social activity – rather indirect effects.
Spaghetti code
Unwarrantable code – slows down performance and further development.
Status code
HTTP status codes (200/301/404/500) – SEO-relevant.
Structured data
Schema.org, JSON-LD and Rich Results.
Search volume
Demand for Keywords – Consider Context.
Unique content
Unique content – added value instead of copy.
URL structure
Readable, consistent, without unnecessary parameters.
User generated content
UGC – Moderation & Quality Assurance Important.
User signals
User behavior as quality indicators (indirectly).
Dwell time
Time on page – Observe context (intent).
WDF*IDF
Term weighting – as a supplement, not as dogma.
WHOIS
Domain Information – Registration Data, Provider.
How Google Search Works
Crawling, indexing and ranking explained in an understandable way.
X-Robots tag
Indexing rules via HTTP header for files and URLs.
Off-page SEO
Offpage SEO includes all external signals that strengthen the trust, authority and visibility of a website outside of its own pages.
Entity SEO
Entity SEO ensures that search engines can clearly identify a brand, person, organization or topic and assign it correctly.
Topical Authority
Topical Authority describes the perceived topic authority of a website in a clearly defined topic field.
Knowledge Graph
A knowledge graph connects entities and relationships. For SEO, it is important that brands, people, places and topics are consistently recognizable.
Semantic SEO
Semantic SEO optimizes content based on meaning, context, and search intentions instead of just repeating individual keywords.
Zero Click Search
Zero Click Search refers to search queries where users receive their response directly in the search results and do not click on a website.
AI Overviews
AI Overviews are AI-generated summaries in search results. For SEO, clear sources, helpful content and machine-readable structure count.
AI visibility
AI visibility describes whether brands, content and sources are found, mentioned and displayed correctly in AI-powered search and response systems.
Linkable assets
Linkable assets are content or tools that are so useful, demonstrable, or unique that other websites voluntarily refer to them.
Brand Mentions
Brand Mentions are mentions of a brand on the web. They can be linked or unlinked and help to make reputation and thematic relevance visible.
Nofollow, Sponsored and UGC
Nofollow, sponsored, and ugc are link attributes that help website operators identify the relationship with linked pages more cleanly.
301 Redirected
A 301 redirect is a permanent redirect. It helps to guide users, search engines and link signals cleanly to the right target URL.
Blacklist
Blacklist checks show whether domains or IP addresses appear on blocked lists and can thus affect delivery, trust or security.
Content optimization
Content optimization improves existing content to better meet search intention, relevance, structure, and utility.
Crawling
Crawling describes retrieving URLs by search engine bots. It is the basis for indexing and later rankings.
DNA
DNS connects domain names to technical goals such as IP addresses, mail servers, and security configurations.
HTTPS
HTTPS protects the connection between browser and website. For modern websites, it is a technical obligation and an important signal of trust.
Keyword
A keyword is a search term or topic about which users find content, products or answers in search engines.
Meta Tags
Meta tags provide search engines, browsers and social networks with structured hints about a website.
Onpage SEO
Onpage SEO includes all optimizations of content, structure, technology and internal linking of a website.
Ranking
Ranking refers to the position where a URL for a search query appears in the search results.
SERP snippet
The SERP snippet is the visible preview of a page in the search results, usually consisting of title, URL and description.
SSL/TLS
SSL/TLS certificates enable encrypted connections and are the technical basis for HTTPS.
Search intent
Search intention describes the goal behind a search query and decides which type of content is suitable for good rankings.
Technical SEO
Technical SEO ensures that search engines can efficiently crawl, understand and index a website.
Title day
The title tag defines the page title and affects browser titles, search result snippet and click-through rate.

New basic hubs

Short introductions to frequently searched SEO terms, which lead to in-depth wiki posts, tools and audits.