CDN

Autoptimize

Autoptimize is a WordPress plugin that speeds up sites by aggregating, minifying and caching scripts and styles, with options to defer CSS and lazy-load images. It works on the server side and does not track visitors. If its optional image optimization service is enabled, images are served from a third-party CDN, which receives visitors' IP addresses.

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Overview

What does Autoptimize do?

Autoptimize is a free open source WordPress plugin developed in Belgium by Frank Goossens (Futtta) since 2009. With more than a million active installations it is one of the most widely used WordPress performance optimisation tools, especially for sites that want a free alternative to WP Rocket. Because it runs entirely on the customer server and processes no personal data, it is one of the rare plugins that is fundamentally privacy neutral.

What Autoptimize does

Autoptimize concatenates and minifies CSS, JavaScript and HTML, inlines critical CSS, lazy loads images and iframes, and can defer or async JavaScript. The optional image optimisation feature proxies images through Shortpixel CDN or another provider. The plugin integrates with WP Rocket, WP Super Cache, W3 Total Cache and Cloudflare for further performance gains.

Data and cookies

Autoptimize does not set cookies, does not collect analytics, does not fingerprint visitors and does not phone home. Cached and minified assets are stored in the WordPress uploads or content directory on the customer server. Page generation can be slower the first time after a cache purge but is faster for every visitor afterwards.

GDPR and ePrivacy implications

Because Autoptimize does not process personal data, no GDPR lawful basis is required and no ePrivacy consent is needed. The plugin is GDPR compatible by design. The only point of attention is the optional image CDN proxy: enabling Shortpixel sends image URLs (not personal data) to Shortpixel servers in Romania and the Netherlands, which is EU based.

Data transfers and the optional image CDN

By default no transfer takes place. If you enable the image CDN, requests are rewritten to a third party domain (Shortpixel by default, but you can configure any CDN). Shortpixel is operated by Shortpixel SRL in Romania with infrastructure in the Netherlands and Romania. If you choose a non EU CDN such as KeyCDN US or AWS CloudFront, you must document the transfer mechanism for the image URLs and any cookies set by the CDN edge.

Practical compliance steps

Enable Autoptimize without restriction. If you turn on the image CDN proxy, verify the CDN region and document it in your privacy notice and records of processing. Avoid mixing Autoptimize with Google PageSpeed services that load remote Google Fonts: prefer self hosted fonts. No consent banner entry is needed for Autoptimize itself.

Compliance

Autoptimize and the GDPR

Legal basis: No personal data is processed by Autoptimize. The plugin only optimises static assets server side and does not set cookies, fingerprint visitors or collect analytics. No GDPR lawful basis or ePrivacy consent is required for Autoptimize itself.
Risk level: low
Applicable regulations: GDPR (in conjunction with the image CDN choice), ePrivacy Directive (in conjunction with any external font or image origin)

Cookies and trackers

What Autoptimize sets and contacts

Tracking method: Self hosted WordPress performance plugin. Autoptimize concatenates and minifies CSS, JavaScript and HTML, optimises images via local or external CDN, lazy loads images and iframes, and can inline critical CSS. It operates server side without any visitor tracking.
Server location: Developed by Frank Goossens (Futtta) in Belgium and maintained as a free WordPress plugin distributed via wordpress.org. There is no SaaS back end: the plugin runs entirely on the customer WordPress server. Optional image optimisation can be delegated to the Shortpixel CDN (EU) or another provider.
Cookieless mode available: Yes

Third-party domains contacted (4)

wordpress.org
autoptimize.com
futtta.be
shortpixel.ai

Questions

Frequently asked questions about Autoptimize

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Which cookies does Autoptimize set?

None. Autoptimize is a server side optimisation plugin: it concatenates and minifies static assets and lazy loads images. It does not set cookies, does not collect visitor analytics and does not fingerprint visitors.

Is consent required to use Autoptimize?

No. Autoptimize processes no personal data and sets no cookie, so Art. 5(3) ePrivacy and Art. 6 GDPR do not apply. The only point of attention is the optional image CDN proxy if you decide to enable it.

What is the legal basis for processing?

Not applicable. Autoptimize does not process personal data. If the image CDN is enabled, the lawful basis for the third party CDN follows the usual analysis (typically legitimate interest under Art. 6(1)(f) GDPR for performance and security).

Is data transferred to the United States?

Not by Autoptimize itself. Image bytes are transferred to the chosen image CDN if you enable that feature. Shortpixel (default) stores data in Romania and the Netherlands (EU). Other CDNs (Cloudflare US, KeyCDN, AWS CloudFront) involve their own transfer rules.

Do I need a DPIA for Autoptimize?

No, Autoptimize itself does not require a DPIA. The plugin is not in scope of Art. 35 GDPR because no personal data is processed.

How do I implement Autoptimize correctly?

Activate the plugin, enable HTML, CSS and JavaScript optimisation, inline critical CSS, lazy load images and exclude assets that break with optimisation (typically third party widgets). If you enable the image CDN, choose an EU based provider such as Shortpixel and document it.

Which alternatives to Autoptimize should I consider?

WP Rocket (France, premium), W3 Total Cache (US, free), WP Super Cache (Automattic, US, free), Asset CleanUp (Romania, freemium), Hummingbird (WPMU DEV, US), LiteSpeed Cache (US, free if you use LiteSpeed servers).

How do I update the cookie policy when Autoptimize changes?

Autoptimize is not listed in the cookie policy because it sets no cookies. Update only if you enable or change the image CDN provider, in which case document the new CDN under the third party transfers section.

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