Last updated: 10 October 2026
This Cookie Policy explains how cookies and similar storage technologies are used on https://www.sejdaa.net. It should be read together with our Privacy Policy. If anything here is unclear, write to [email protected] and we will explain it in plain language.
What a cookie is
A cookie is a small text file that a website asks your browser to store, and that the browser sends back to that site on later visits so the site can recognise your device or remember a setting.
That is the whole idea. A cookie is not a program. It cannot run on your computer, read your documents or open your files. The interesting question is never “what is a cookie” but “who set this one, and what is it for”. That is what the rest of this page answers.
What actually gets set on Sejdaa
Sejdaa is a toolkit of 282 browser-based tools: PDF (81), Image (73), Office (30) and Utility (75). Every tool runs inside your browser using JavaScript, WebAssembly and the Canvas API. Your files are not uploaded to our server, and no cookie is needed to process them. There is no sign-up, no account and no watermark.
We do not run a first-party advertising network, we do not build visitor profiles, and we do not sell or share personal information. The cookies that appear while you browse fall into four categories, listed below.
| Category | Status | What it does | Examples |
|---|---|---|---|
| Strictly necessary | Always on | Keeps the site working and safe. Used to serve pages through our CDN and security layer, to remember that a consent choice has been made, and to protect the site against bots and abuse. These cookies do not track you across other websites and cannot be switched off through our banner, because without them the site cannot function. | Cloudflare security and bot-management cookies; short-lived session cookies |
| Advertising | Off until you agree | Sejdaa is free because it is funded by advertising. Ads are served through Google AdSense (publisher ID pub-8928122502589555). Google and its advertising partners may set cookies and read device identifiers to choose which ads you see, to limit how often you see the same ad, and to measure how ads perform. These cookies can follow your activity across sites, which is why they only load after you accept. |
__gads, __gpi, and other Google advertising cookies |
| Analytics | None set | No analytics or audience-measurement service is currently installed on Sejdaa. We do not run Google Analytics or any equivalent product, so no analytics cookies are set and no analytics data is collected. If that ever changes, this page will be updated first and analytics cookies will load only after consent. | None |
| Preferences | Set when you choose | Records the choice you make in the consent banner, so we do not ask you the same question on every page. The record is stored in your browser’s localStorage under the key z11_consent_v1, not in a cookie. |
localStorage["z11_consent_v1"] |
Cookies and localStorage are not the same thing
Both store small amounts of data in your browser. They behave differently, and the difference matters here.
A cookie is sent to the server with every matching request, so the server can read it. It has an expiry date and is normally limited to about 4 KB. localStorage is a browser storage area that stays on your device. It is never transmitted automatically, it has no expiry date, and it can hold far more data. It is readable only by scripts running on the site that created it.
We use localStorage for one job: remembering your consent choice under the key z11_consent_v1. That record tells our banner which categories you have accepted or rejected, and it is why the banner does not reappear on each page load. Clearing site data in your browser deletes it, and the banner will simply ask again.
How the consent banner works
The banner uses Google Consent Mode v2. Ad and analytics storage both default to denied. Nothing changes that default except your own action. If you accept, advertising cookies may be set. If you reject, or if you ignore the banner, ad storage stays denied and Google is instructed not to use advertising cookies for you. Google may still serve a non-personalised ad, and measurement may run in a limited, cookieless form.
How to change or withdraw your consent
You can change your mind at any time. Your choice is not locked in.
- Cookie settings button. This is the fastest route. It sits on the site and reopens the consent panel, where you can switch categories on or off. The button works on every page, at any time, whether you accepted or rejected earlier. This is also the control we treat as “Do Not Sell or Share My Personal Information” for visitors covered by California law.
- Clear cookies in your browser. Every major browser lets you view and delete cookies and site data for a specific site. Chrome, Firefox, Safari, Edge and Brave all offer this in their privacy or settings menus. Deleting our cookies removes the consent record as well, so you will be asked again on your next visit.
- Google Ads Settings. Visit https://adssettings.google.com to control how Google personalises ads for you across the sites you visit.
- Industry opt-out pages. https://www.aboutads.info/choices/ and https://www.youronlinechoices.com/ let you opt out of interest-based advertising from many participating vendors at once.
Withdrawing consent stops future advertising cookies from being set through our banner. It does not automatically erase cookies that were already placed by Google or its partners. Deleting those is done through your browser settings or the opt-out links above.
Do Not Track and Global Privacy Control
Some browsers can send a “Do Not Track” signal. There is still no common industry standard for how a site should respond, and DNT is not legally binding in most jurisdictions, so we do not treat it as a consent choice on its own. Because advertising cookies are denied by default until you actively accept, a DNT visitor who ignores the banner is not tracked for advertising anyway.
Global Privacy Control (GPC) is different. It is a recognised opt-out signal under several privacy laws, including California’s. We honour GPC where it is legally required: if your browser sends it, we treat it as an instruction not to sell or share your personal information, and advertising cookies stay off unless you explicitly accept them. Because we do not sell personal information in the ordinary sense, GPC mainly affects sharing for cross-context behavioural advertising, which is the activity the signal is designed to stop.
How long cookies last
Session cookies disappear when you close the browser. Persistent cookies stay until they expire or until you delete them. Cloudflare’s security cookies are typically short-lived and often session-based. Google advertising cookies such as __gads and __gpi can persist for months, and Google sets the exact lifetime in its own documentation. The consent record in localStorage has no expiry date; it stays until you change your choice or clear your browser data.
Server logs
The site sits behind Cloudflare, which processes technical request data such as IP address, browser type and timestamp as part of serving pages and blocking abuse. That is standard web-server operation, not cookie-based tracking. Our retention for this data is described in the Privacy Policy: kept briefly for security, typically 30 days, then deleted.
Changes to this policy
If we add a new tool, a new third-party service or a new cookie category, this page will be updated before the change goes live. The date at the top always shows the current version.
Contact
Questions about cookies, consent or this policy can go to [email protected]. You can also use our contact page. We aim to reply within a few business days.