Understand Web fundamentals
Start with a page you know. Separate its address, the software reading it and the exchanges needed to display it. This avoids looking for a domain problem in page copy or confusing a downloaded file with an HTML page.
21 concepts to explore with their definitions and practical advice.
Search the full glossary
A reading path
1. Identify the resource
Record the full URL, path and useful parameters. A deep link should reach the intended information without requiring a homepage visit.
2. Read the exchange
The browser requests a resource and receives a response. Status helps describe the result; content and type indicate what can be displayed or downloaded.
3. Check the journey
Try the link from another entry point, then a missing address. An error page should help recover a resource while keeping an appropriate status.
Useful distinctions
Domain name / URL
A domain identifies part of an address; a URL can also contain a path, query and fragment. Changing pages does not necessarily change the domain.
Browser / Server
The browser uses the response to present the page; the server supplies requested resources. A display defect and an unavailable resource require different observations.
Use the vocabulary to make a decision
Situation
An old shared link no longer shows the expected record.
Before deciding
Record its URL and status before concluding that content has disappeared. Compare the destination with a genuinely available equivalent record.
A concrete check
Test the direct link and return to the section; note whether visitors can resume their journey.
All concepts in this topic
Links open the full definition on its alphabet page. Acronyms and synonyms remain searchable from the main glossary.
Frequently asked questions
Does a readable address guarantee a good page?
No. It helps identify a resource but proves neither availability, relevance nor content security. Check the address and response separately.
Can an error page contain useful content?
Yes. It can offer search, sections and contact while explaining that the requested resource is missing. Useful wording should not conceal the technical state.
Primary reference documents
These documents explain the technical concepts. The reading paths and decision examples are editorial methods to adapt to your project.