Privacy and Cookies
Privacy and Cookies
EventHelix.com is a documentation and marketing site for our systems engineering tools. This page describes what data the site collects, what it stores in your browser, and which third-party services it contacts when you load a page.
Last updated: 2026-04-19.
Cookies
The site sets no tracking, analytics, or advertising cookies. The following strictly-necessary cookies are set by the hosting and delivery infrastructure:
| Cookie | Set by | Purpose | Lifetime |
|---|---|---|---|
ARRAffinity | Microsoft Azure App Service (our host) | Pins your session to a single backend instance while you are browsing, so pages load consistently. | Browser session. |
ARRAffinitySameSite | Microsoft Azure App Service (our host) | Same purpose as ARRAffinity, delivered with a SameSite attribute for modern browsers. | Browser session. |
Under the EU ePrivacy Directive these are classified as strictly necessary cookies — they are required to deliver the service you requested and are not used for tracking or profiling. No consent is required to set them.
Cloudflare (our CDN, see below) does not currently set any cookies on our site. If we were to enable Cloudflare Bot Management or Turnstile in the future, a strictly-necessary __cf_bm cookie (30 minutes) could be set for bot mitigation; this page will be updated if that changes.
Browser storage
This site uses exactly one entry of localStorage:
| Key | Purpose | Lifetime |
|---|---|---|
eh-theme | Remembers whether you chose the light or dark colour scheme via the theme toggle in the navigation bar. | Persists until you clear it. |
Under the EU ePrivacy Directive and GDPR this is a strictly necessary / functional storage item — it is only created when you click the theme toggle, it stores a preference you explicitly set, and it is not used for identification, tracking, or analytics. No consent is required for storage of this kind.
You can clear this value at any time through your browser's site-data or privacy settings.
Analytics and tracking
None.
The site does not run Google Analytics, Facebook Pixel, Hotjar, Clarity, Segment, or any other analytics, tracking, or advertising script. We do not fingerprint visitors. We do not track you across pages or sessions.
Third-party resources loaded by the site
All fonts, stylesheets, and scripts required to render the site are hosted on EventHelix.com. The site does not load Google Fonts, jsDelivr, or any other third-party CDN at page load, so no IP address or request metadata is transmitted to a third party simply by visiting a page.
The only third-party requests that may be made are:
- YouTube embeds (tutorial pages only). Videos are embedded through the privacy-enhanced
youtube-nocookie.comdomain, which does not set tracking cookies until you press play. If you do not interact with the video, no personalised data is sent to YouTube. - Outbound links to Medium, GitHub, Twitter / X, LinkedIn, and Facebook in the page footer and article bodies. These are plain links — they only contact the third party if you click on them. We use
rel="noopener"to avoid leaking window-level context.
Service providers (data processors)
The following providers process data on our behalf to deliver the website. All are bound by Data Processing Agreements and process data only for the purposes listed.
- Microsoft Azure (App Service) — hosts the origin server. Receives page requests and form submissions. Azure sets the strictly-necessary
ARRAffinitycookies described above. - Cloudflare, Inc. — sits in front of the site as our CDN, TLS terminator, and DDoS protection layer. Every request to EventHelix.com transits Cloudflare's edge, so Cloudflare briefly processes your IP address, request headers, and the URL requested. Cloudflare does not currently set cookies on our site, and we do not use Cloudflare Web Analytics, Zaraz, Bot Fight Mode, or any paid analytics / tag-management features — those are disabled on our account. Cloudflare's Network Error Logging endpoint (
a.nel.cloudflare.com) is wired up at the edge but currently configured with a 0% sample rate, so no error reports are sent from visitors' browsers in practice.
Trial and purchase forms
Filling in a trial-request or order form on the VisualEther or EventStudio pages submits the information you enter (name, email, company, and your message) directly to EventHelix so we can deliver the trial licence or process the order. We do not share that data with third parties for marketing purposes. Contact us at support@eventhelix.com if you would like your information removed.
Server logs
Our web host (Microsoft Azure) and Cloudflare keep standard access logs (IP address, user agent, requested URL, timestamp, referrer) for operational and security purposes — identifying attacks, debugging errors, and preventing abuse. These logs are retained only as long as needed for those purposes and are not used for profiling or advertising.
Your rights (EU / UK / California residents)
You have the right to request access to, correction of, or deletion of any personal data we hold about you. For most visitors we hold only short-lived session-affinity cookies and the operational log entries described above — no analytics profiles and no advertising identifiers. If you have submitted a trial or order form and want to exercise these rights, email support@eventhelix.com.
Contact
EventHelix.com Inc.
support@eventhelix.com