X25GO KNOWLEDGE

Website technology and quality

This cluster covers website technology. Check stability, speed and clear errors.

What matters in practice

Start with one clear goal. Use one real case. Check the result before the next step.

This cluster contains 90 detailed guides. Every subject is covered from ten different perspectives, so a basic explanation does not compete with a checklist, audit, risk review or implementation guide.

The internal links follow the subject graph. Pages about the same subject link to other useful perspectives, while pages with the same intent connect nearby subjects. This creates short paths through the topic.

Topics in this cluster

Choose the subject that best matches the actual task. The first link starts with the basics and then offers nine deeper perspectives through related links.

HTML semantics

Use each HTML element for its real purpose. Make links and headings clear.

Start with basics

Website performance

Measure what slows the site. Check images, scripts and the page load.

Start with basics

Core Web Vitals

Measure loading and response times. Find the cause of weak page scores.

Start with basics

Optimising website images

Choose a suitable image format. Size and alt text should fit the image purpose.

Start with basics

Using web fonts cleanly

Load only the font styles you need. Make sure the page stays clear as it loads.

Start with basics

Content Security Policy

A CSP defines trusted sources. Check which scripts or styles the browser blocks.

Start with basics

Accessible websites

Test the page with a keyboard. Check focus, contrast and clear labels.

Start with basics

Status codes and redirects

Return the right status code. Avoid long chains of redirects.

Start with basics

JavaScript rendering

Make key page content easy for bots to read. Check the final HTML.

Start with basics

Ten perspectives for each topic

Basics explained clearly
How to implement it step by step
Common mistakes to avoid
How to audit and assess it
How to make the right decision
Practical checklist for SMEs
A concrete practical example
Risks and limits to know
How to measure success
Practical SME implementation

Use only the perspective you need. A checklist is useful when the method is already known. An audit page is better when the current state is unclear. A decision page helps before larger changes.

At a glance

Four relevant points to understand and check on this page.

Goal of this topic area

Technology should deliver content reliably, quickly, securely and clearly for people and crawlers.

Key subject rule

Measure technical changes first, implement them deliberately, then test again with the same method.

A practical starting point

HTML semantics: Use each HTML element for its real purpose. Make links and headings clear.

One more case to check

Website performance: Measure what slows the site. Check images, scripts and the page load.

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