Terms of use for WebVitalsDev

Scope of the service

WebVitalsDev provides educational content and performance-related tools. Access does not create a consulting, support or professional-advice relationship. The site does not require an account and does not promise uninterrupted availability or a particular response time.

Guides and examples describe techniques that may need adaptation to your software, hosting and configuration. Review changes in an appropriate test environment, retain recovery options and confirm that essential behavior still works before applying them to a live system.

Responsible tool use

Use the tools only for lawful purposes and systems you are entitled to examine. Do not attempt to bypass rate limits, overload services, interfere with other visitors or submit malicious input.

Only public URLs should be submitted to the PageSpeed analyzer. Do not include credentials, private access links or sensitive query values. The analyzer depends on an external service and can return missing data, errors or cached results. The local calculators work with the values you supply and cannot verify their origin.

Content and third-party material

Unless a specific license is stated, publication of an article does not grant permission to reproduce it in full. Respect copyright, attribution requirements and any applicable license for separately identified code or third-party material. Links and product names do not imply endorsement or a commercial relationship.

External services and linked sites have their own terms and policies. WebVitalsDev cannot guarantee their continued availability or the accuracy of material they change after it is referenced.

Limits and applicable law

Performance varies with implementation, hardware, networks, visitor behavior and external dependencies. No guide or tool guarantees a particular score, ranking, revenue result or compliance outcome. See the disclaimer for the distinction between examples, estimates and measurements.

These terms operate subject to the laws applicable to the operator. Nothing here is intended to exclude rights or obligations that cannot lawfully be excluded. No particular court, jurisdiction or registered entity is represented by this text.

Contact and updates

Questions about these terms can be sent to [email protected]. Material changes to the service or its conditions should be reflected on this page. The privacy policy explains the data handling associated with using the site and tools.