Mastery of the stack of languages and environments used to build, deploy, host, and serve your website or application helps us root out performance bottlenecks and optimize your site for faster page loads.

Your visitors notice your lagging site performance

40% of visitors abandon a site that takes over 3 seconds to load. Just a one second page load delay can dampen conversion rate by as much as 7%.

Sites that have a lot of features and images can struggle to perform well across various network environments and web devices, usually because they lack optimization in terms of the type, amount, and delivery method of page resources they are loading. 

Studies show that high-performing sites engage and retain users better than low-performing sites

Performance matters for:

It also matters for SEO. Sites with good performance generally engage and retain users better than low performing ones (which have a higher bounce rate). Search engines tend to boost websites with good dwell time in search rankings.

Performance issues can be small, seemingly insignificant delays that your site users have to put up with. They add up to a frustrating user experience. Even worse, performance issues can snowball to make your site inaccessible or unresponsive. That’s what you call “very bad”.

Have us audit your site performance for you

Slow-loading web pages result in unread content and lost conversion opportunities. We can identify and fix a performance issue that’s been holding you back.

How our Performance team can help you

New Relic

New Relic is a web application performance service designed to work in real-time with your live site. Pantheon integrates with New Relic right out of the box. As the leader in application performance monitoring, New Relic gives us an incredibly valuable tool for understanding where performance can be improved.


Another added value from Pantheon hosting, Varnish delivers high-speed page caching and robust application object caching for your Drupal or WordPress site. Varnish caches pages for anonymous visitors at the highest possible performance.

Global CDN

One of the many advantages of hosting your WordPress or Drupal site at Pantheon is its included global content delivery network (CDN) ensuring your content is delivered as quickly to users as possible. This can cut page load times in half for users within the US and speed up page rendering time more than 10X for users browsing from across an ocean.


Redis is optimized for high performance storage and retrieval, helping us accelerate your site’s internal operations through application object caching. This can significantly accelerate dynamic page generation and performance for logged-in users.

Performance case studies

Need help now?

Whether you’re dealing with a slow burn nuisance or a red-alert meltdown, we have the experience, diagnostic tools, and problem-solving skills to put out the fire. 

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