Even though the purpose of Plausible Analytics is to track the usage of a website, this can still be done without collecting any personal data or personally identifiable information (PII), without using cookies and while respecting the privacy of the website visitors.
Here’s a closer look at our data policy, the information that we do collect, what we use it for and steps we’ve taken to comply with the cookie law and the privacy regulations such as the GDPR, CCPA and PECR.
First thing first: What we collect and what we use it for
We do not track people across their devices and across websites and apps that they visit. All the data is isolated to a single day, single website and single device only. There is no way to know whether the same person visits a site from more than one device or visits another website. See here the full list of what makes Plausible a privacy-first web analytics tool.
By using Plausible Analytics, all the site measurement is carried out absolutely anonymously. We measure only the most essential data points and nothing else. All the metrics we do collect fit on one single page. Here is the complete list of what we collect and store about your website visitors:
|Page URL||https://yoursite.com/pricing||We track the page URL of each page view on your website. We use this to show you which pages have been viewed and how many times a particular page has been viewed. |
The hostname and path are collected. Query parameters are discarded, except for these special query parameters:
|HTTP Referer||https://facebook.com||We use the referrer string to show you the number of visitors referred to your website from links on other sites.|
|Browser||Chrome 86.0||We use this to show you what browsers and browser version numbers people use when visiting your website. This is derived from the User-Agent HTTP header. The full User-Agent is discarded.|
|Operating system||macOS 10.15||We use this to show you what operating systems people use when visiting your website. We show the brand of the operating system and the version number. This is derived from the User-Agent HTTP header. The full User-Agent is discarded.|
|Device type||Desktop||We use this to show you what devices people use when visiting your website. This is derived from window.innerWidth. The actual width of the browser in pixels is discarded.|
|Visitor Country||United Kingdom||We look up the visitor’s country using their IP address. We do not track anything more granular than the country of origin and the IP address of the visitor is discarded. We never store IP addresses in our database or logs.|
How we count unique users without cookies
Counting unique visitors is an integral part of web analytics. Known methods include:
- Storing a cookie with random identifier on the visitor’s device
- Counting unique IP addresses (often coupled with User-Agent)
- Browser fingerprinting
- Abusing the browser cache e.g. Etag tracking
Each method has its problems and they are all covered by different privacy laws. Plausible attempts to strike a reasonable balance between de-duplicating pageviews and staying respectful of visitor privacy. We do not attempt to generate a device-persistent identifier because they are considered personal data under GDPR.
Instead, we generate a daily changing identifier using the visitor’s IP address and User Agent. To anonymize these datapoints, we run them through a hash function with a rotating salt.
hash(daily_salt + website_domain + ip_address + user_agent)
This generates a random string of letters and numbers that is used to calculate unique visitor numbers for the day. Old salts are deleted to avoid the possibility of linking visitor information from one day to the next. Forgetting used salts also removes the possibility of the original IP addresses being revealed in a brute-force attack.
In our testing, using IP addresses to count visitors is remarkably accurate when compared to using a cookie. In some cases it might even be more accurate than using a cookie because some visitors block cookies altogether.
The biggest limitation with this approach is that we cannot do good retention analysis with Plausible. We cannot show stats like New vs Returning visitors because they rely on having a persistent user identifier.
Disclaimer: This post provides information on how Plausible is built to help you comply with the different privacy regulations. We encourage you to discuss specific issues with your lawyer to help you decide whether our service allows you to fulfill the legal requirements that apply to you.
Built and hosted in the EU
We’re a two person team and we’re based in the EU. The legal entity is incorporated in Estonia.
All of the data that we do track and collect is kept fully secured, encrypted and hosted on renewable energy powered server in Germany. This ensures that all of the website data is being covered by the European Union’s strict laws on data privacy.
You don’t have to worry about Schrems II and that it invalidates the EU-US Privacy Shield. Your website data never leaves the EU.
Data ownership of your web analytics
When you use our service to measure your website stats, Plausible Analytics will collect information about your visitors. You entrust us with your site data and we take that trust to heart. The privacy of your site data — and it is your data, not ours! — is a big deal to us.
By using Plausible, you keep 100% ownership of your website data. Although when using our hosted service, your site analytics are stored on our server in the cloud, you remain completely in control of your site data and you fully own all of your data too.
You own all right, title, and interest to your website data. We obtain no rights from you to your website data. We will never sell or share your site data to any third-parties.
- Your website data is not shared with advertising companies or any other companies in general.
- Your website data is not sent to any third-parties at all.
- Your website data is not mined and harvested for personal and behavioral trends.
- Your website data is not monetized.
Why should I trust you?
We are not a black box. There’s nothing proprietary or closed source about Plausible Analytics. Everything is in the open. Anyone can view, review and inspect the code we’re running to verify that we practice what we preach.
This is essential in the market of privacy software. Corporations and proprietary software cannot always be trusted when data is in question. The only way to prove your trust is to allow experts to look into your code and verify that you’re actually doing what you’re saying you’re doing.
GDPR, CCPA and PECR compliant web analytics
You can sign up for a 30-day free trial and explore our privacy-friendly and GDPR, CCPA and PECR compliant site analytics. You don’t need to remove your current analytics provider either until you’ve tested Plausible and figured out if you like our product.