Privacy Policy

Introduction

Welcome to jmfernandez.dev and the Web Vitals Chrome extension. This Privacy Policy explains how we collect, use, and protect your information when you visit our website or use our Chrome extension. This policy applies to both services, which are managed by Jose Manuel Fernández, an independent developer based in Spain.

We are committed to safeguarding your privacy in compliance with the General Data Protection Regulation (GDPR) and Spain's Organic Law 3/2018 on Personal Data Protection and Guarantee of Digital Rights (LOPDGDD).

Data Controller

The data controller responsible for your information is:

• Name: Jose Manuel Fernández
• Email: jmfernandez@vantag.es
• Location: Spain

Information We Collect

Website (jmfernandez.dev)

When you visit our website, we may collect the following data:

• Technical Data: IP address, browser type, operating system, and other device information.
• Cookies: We use cookies to improve your browsing experience and analyze site traffic. You can manage cookie preferences through your browser settings.
• Contact Information: If you use our contact form, we collect your name, email address, and any message content you provide.

Chrome Extension (Web Vitals)

The "Web Vitals" Chrome extension, a fork of Web Vitals, collects the following data:

• Performance Metrics: Metrics such as Largest Contentful Paint (LCP), First Input Delay (FID), and Cumulative Layout Shift (CLS) from the web pages you visit.
• Temporary URLs: URLs of visited pages may be temporarily stored during analysis to measure performance but are not retained afterward.
• No Personal Data: The extension does not collect personally identifiable information (PII) such as your name, email, or browsing history beyond what is needed for performance analysis.

How We Use Your Information

• Website: To improve functionality, enhance user experience, and analyze traffic trends.
• Extension: To provide you with real-time performance metrics and assist in optimizing web experiences.

Legal Basis for Processing

We process your data based on the following legal grounds under GDPR:

• Consent: For cookies and contact form submissions (Article 6(1)(a) GDPR).
• Legitimate Interest: For technical data and performance metrics to ensure the proper functioning of our services (Article 6(1)(f) GDPR).

Data Sharing

We do not share your personal data with third parties, except:

• When required by law or to comply with legal obligations.
• The extension may make API calls to external sources (e.g., Chrome UX Report) for aggregated performance data, but no individual user data is transmitted.

Data Retention

• Website: Technical data and cookies are retained for up to 12 months unless you request deletion. Contact form data is kept only as long as necessary to respond to your inquiry.
• Extension: Performance metrics and temporary URLs are not stored beyond the analysis session and are deleted immediately after use.

Your Rights

Under GDPR and LOPDGDD, you have the following rights regarding your data:

• Access: Request a copy of your data.
• Rectification: Correct inaccurate data.
• Erasure: Request deletion of your data.
• Restriction: Limit how we process your data.
• Objection: Object to processing based on legitimate interests.
• Data Portability: Obtain your data in a structured format.

To exercise these rights, contact us at [Insert your contact email]. You may also file a complaint with the Spanish Data Protection Agency (AEPD) at www.aepd.es.

Security

We implement reasonable technical and organizational measures to protect your data from unauthorized access, loss, or disclosure.

Third-Party Services

The website may use third-party tools (e.g., Google Analytics) for traffic analysis. These services have their own privacy policies, which you can review on their respective websites.

Changes to This Policy

We may update this Privacy Policy from time to time. Changes will be posted on this page, and significant updates will be communicated via the website or extension.

Contact Us

If you have questions or concerns about this Privacy Policy, please contact:

Email: jmfernandez@vantag.es

Disclaimer

The Web Vitls Chrome extension is an independent project and is not affiliated with Google or the original Web Vitals extension.