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Link checking is crucial before publishing a technical tutorial. Even with clear explanations and neat screen layouts, poor link quality can greatly impact the overall user experience. As readers follow along with the installation process, encountering outdated pages or login-only documents disrupts the flow. If a tutorial page contains pages with different versions of content, it can cause confusion in the setup process.

Therefore, links should be seen as part of the tutorial, not just supplementary material. Links directly affecting a reader's installation, setup, verification, or troubleshooting should undergo a simple check before publication. The primary criterion for a link is its purpose. Not all supplementary material is necessary; pages with mere curiosity or additional information may be better suited as separate reference lists.

Clearly defining the purpose of each link helps readers distinguish between necessary information and optional choices. For example, installation package documents, installation guides, environment variable settings, service verification, release notes, change logs, API documentation, troubleshooting known errors, migration guides, alternative tools, and related resources all serve different purposes.

Even pages explaining how links work, such as official READMEs, official documentation, community answers, personal blogs, or outdated technical articles, have varying levels of relevance. During the pre-publishing stage, you can categorize links into official or original sources, community explanations, real-world examples, past versions or background information, and temporary research data.

Displaying this categorization in the main text is not mandatory, but it helps readers understand the level of support each link provides. Accuracy is essential for critical information like current functionality or compatibility conditions, so prefer official documents and original sources as primary benchmarks. However, descriptions of actual usage or problem-solving scenarios may benefit more from community experiences.

For version-dependent content, such as current operating methods or compatibility conditions, it's safer to prioritize official documents and original sources. Changes in versions or dates can significantly affect existing tutorials and links due to the rapid pace of technological change. Framework version changes, package option name changes, and cloud service menu relocations are examples of small changes that can create differences between existing tutorials and links.

Before publishing, verify the following items: the version of the linked page and the tutorial's version, the recent modification status of the official documentation, the correspondence between the commands in the tutorial and the current documentation, and the need for a note about outdated links. Links with high version dependency should display version information alongside the link, such as specifying the specific framework version in the tutorial.

Addressing restricted access, such as pages that are inaccessible to some readers due to login requirements or internal permissions, is also important. For critical links, a secret mode or alternative browser check can ensure accessibility. For login-required dashboards, private documents, internal issue trackers, or preview deployment pages, consider using non-public documents or providing separate instructions for readers to verify in their own environments.

When comparing multiple pages or link arrangements, it can be helpful to use comparison pages that categorize or show multiple options side by side. However, the primary sources for practical judgment should be the relevant package documentation, API references, or project requirements. Positioning links naturally within sentences is crucial.

Sentences explicitly inserting URLs are less informative. Instead, phrases like "You can check the supported Node version in the package README" provide more context. The purpose of a link should be clear to the reader before they click it. This clarity in the sentence structure helps maintain the flow of the text and establishes priorities when multiple links appear consecutively.

A final check before publishing should focus on a few key items rather than a comprehensive checklist. Verify the purpose, source (official, community, example, background), version compatibility, accessibility in typical environments, and the potential for change in information. By dedicating only a few minutes to this check, you can significantly reduce issues related to incorrect links, version discrepancies, or restricted access.