Web Performance Of The World’s Top 100 SaaS websites [Report]

web performance of the world's top 100 saas companies

How fast and reliable is your favourite SaaS tool?

That’s the question we wanted to answer when we did this web performance study.

The goal of any SaaS business is to provide an online service and help customers to complete a specific job. But when this service is “down”, it’s the users’ business that are being put on “hold”.

That’s the reason why uptime is money!

From Mailchimp to Slack, we monitored the uptime and site speed of the world’s top 100 SaaS during 30 days. But unlike our previous studies, we went a step further by taking a peek inside their web frameworks and technologies.

Let’s discover together the performance of the biggest SaaS businesses!

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Top 100 SaaS: Web Performance Analysis

1. Web Framework

Before diving into the performance analysis, we wanted to know a bit more about the technologies behind those SaaS 100. We checked their web frameworks and the result is quite surprising…

More than 50% of SaaS are built under a CMS! 

Unsurprisingly, the most popular solution used within the cloud 100 is wordpress (35%) then Drupal (17%) and Adobe (7%). After CMS, the trend is followed by Javascript (24.2%) and PHP (7.1%)

2. Web Servers

According to recent survey, microsoft web servers power 43% of all sites in the internet. But Nginx and Apache remain the leaders when it comes to “active sites“.

We actually noticed the same trend after checking every site on the list. Nginx is clearly the most adopted web server amongst the biggest cloud companies.

3. Uptime performance

Global overview

Reaching 100% of uptime is hard but it’s not impossible…

As a matter of fact, 67% of the websites managed to have 0% of downtime! This good score means that a vast majority of them are reliable and allow their customers to accomplish their job!

Unfortunately, 33% of them faced big outages!

uptime performance saas 100

Bottom 10 SaaS companies

22 hours and 18 minutes.

That’s the total amount of downtime accumulated by the top SaaS players.

While the uptime is better than the e-commerce, some companies should really be worried about their performances. The most impacted SaaS are: Yardi (26th), Medalia (7th) and Datastax (66th).

The 3 of them were down all together for a total of 16 hours!

downtime saas websites

4. Type of errors

Being down is one thing, knowing why is another!

The fastest way to solve an issue is to know why it happened in the first place. The most recurring error detected is a “no response” code, which pops up when a page takes more than 30 seconds to load! For the story, Medallia was down due to an expired certificate…

While this error may seem “OK”, the consequences are real!

Because starting from July, Google chrome will mark non https sites as unsecured. In other words, if this happens on your site, you can say goodbye to your conversions!

[alert type=”success” icon-size=”hide-icon”] ⚠ Discover all the errors detected amongst the Top 100 SaaS![/alert]

5. Load time

In average, the top 100 SaaS load under 0.5 second!

This is a good score especially since Google use page speed as a ranking signal for SEO. Note that our report is based on desktop and doesn’t include mobile load time.

The fastest SaaS are: Fastly (cloud service), Mesosphere (Data software) and Asana (Collaboration).

website speed from top 100 saas

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Recommendations for SaaS companies

Uptime is the one metric that matters for SaaS! 

Of course there are other important metrics but monitoring your web performances should be a priority. Because site speed and uptime can crush the user’s experience…and your business growth!

Here’s what we suggest to monitor:


The methodology used remains almost the same as our previous studies. The data collected for the web performance (uptime & load time) come from internetVista monitoring tool.

  • World’s top 100 SaaS: Forbes cloud 100
  • Technology lookup: BuiltWith & Wappalyzer
  • Element monitored: homepage
  • Checks frequency: 1 minute
  • Tests performed: via 9 monitoring centers (from 01 to 30/04/18)

complete list of the web performance from the world's 100 saas

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No one is immuned to downtime!

As shown in this report, even the biggest SaaS companies suffer from downtime. And we’re talking about the biggest players in the cloud industry with big teams and large financial means.

In 2018, you should stop wondering if your SaaS is available or not.

Instead, start monitoring your platform reliability and provide the best experience to your users!