Cookie Policy

This page is the official English translation of the Bulgarian original of the Cookie Policy of Optibg.com. In the event of any discrepancy between the two versions, the Bulgarian version shall prevail.

What is the site's approach to cookies

The code of Optibg.com does not set and does not use any cookies of its own — neither functional, nor statistical, nor tracking, nor third-party. The site performs no tracking whatsoever and does not use analytics systems. As of the date of this Cookie Policy, no cookie whatsoever is set to the visitor on the site. The hosting provider Cloudflare, however, has the ability to set one technical security cookie in the site's domain if its respective bot-protection feature is enabled in the site's settings; that cookie is set by the provider's infrastructure and is not controlled by the code of Optibg.com. It is described in detail in its own section below.

Optibg.com does not use similar technologies for the purpose of recognising or tracking visitors on your device (tracking pixels, ETag-based identification); the automatic cache validators (ETags) sent by the servers are used solely for normal content caching and are not used to identify visitors. The only storage of information on your device as such is the LOCAL STORAGE keeping of your preferred theme, described below. The possibility of introducing other such technologies in the future would be reflected in this policy.

There is no consent banner and no consent-management mechanism, because the website has no cookies that require consent — under the site's current configuration, no cookies are set at all. Should the hosting provider's bot-protection feature be enabled in the future, the only possible cookie would be the technical security cookie described below, which we consider strictly necessary and which is not subject to prior consent under European law (Art. 5(3), second sentence, of Directive 2002/58/EC), transposed into Bulgarian law through Art. 4a of the Bulgarian Electronic Commerce Act, based on the exemptions in its Art. 4a(4) (items 1 and/or 2). The only remaining storage of information on your device is the optional remembering of your preferred light/dark theme in the browser's LOCAL STORAGE, described below — it requires no consent.

There are no users logged into an account, no comments, no comment forms, no subscriptions or other functionalities that could generate cookies.

Remembering the light/dark theme preference

The only exception to "nothing is stored" is entirely at your initiative: when you press the light/dark theme toggle (night mode), your choice is saved in LOCAL STORAGE — the internal memory of your own browser — under the name "optibg-theme" (values: light or dark). This is done solely so that the site shows your preferred theme on subsequent visits, instead of imposing the choice every time.

This storage does not require your consent, as it concerns processing strictly necessary for providing functionality explicitly requested by you pursuant to Art. 5(3), second sentence, of Directive 2002/58/EC — remembering the theme is a direct consequence of your pressing the button itself. The record contains no personal data, is not accessible to other websites, is not used for tracking, profiling or analytics, and remains entirely on your device. At any time you can delete it through your browser's settings (clearing site data), after which the site will simply return to the default light theme.

The hosting provider's cookie ("__cf_bm")

The website is hosted on the Cloudflare Pages platform. The hosting provider Cloudflare may set one technical security cookie named "__cf_bm" in the site's domain, but only when the respective bot-protection feature (Bot Fight Mode / Bot Management) is enabled in the site's settings — a site-owner decision for the website as a whole (it is not applied page by page), currently inactive. As of the date of this Cookie Policy, the feature is not enabled and Cloudflare does not set the "__cf_bm" cookie during a visit to Optibg.com. If the decision is changed in the future, the cookie will be added by the provider's infrastructure itself, not by the code of Optibg.com, and this Cookie Policy will be updated accordingly.

The purpose of the cookie, when set, is entirely protective: it helps Cloudflare distinguish real human visitors from automated bots and protects the website from malicious actions and attacks. The cookie contains encrypted information needed for calculating the automated-traffic score — its content, except for time-related data, is encrypted and can only be decrypted by Cloudflare. It does not correspond to any user identifier or profile and is not used for advertising, analytics, profiling or tracking of your behaviour.

Characteristics of the cookie (with the feature enabled):

  • Origin: first-party — it is set in the domain of the website itself, not by advertising or analytics networks;
  • Type: we consider strictly necessary to apply when the feature is enabled — the cookie is necessary for the operation of the protection against automated traffic; the decision whether the feature (and respectively the cookie) is active, however, belongs to the site's owner in the Cloudflare settings and is currently inactive, meaning the cookie is not technically impossible to switch off;
  • Duration: up to 30 minutes of continuous inactivity by the end user (after that it expires automatically);
  • Cross-site tracking: none — a separate, independent cookie is generated for each website; Cloudflare does not track visitors from one website to another;
  • User linkage: none — the cookie does not correspond to a user identifier or other identifiers in the customer's web application.

Should the feature be enabled in the future: we consider storage of the type of this cookie strictly necessary for the protection and delivery of the website and not performing any tracking, and therefore we consider that, pursuant to Art. 5(3), second sentence, of Directive 2002/58/EC (transposed into Bulgarian law through Art. 4a of the Bulgarian Electronic Commerce Act, based on the exemptions in its Art. 4a(4) (items 1 and/or 2)), such storage is not subject to prior consent, and a consent banner is not necessary. Under the decision in force at the time of this version (the feature is not active), no cookie whatsoever is stored on the visitor's device. With the feature enabled, if you nevertheless do not wish the cookie to be stored, you can delete it through your browser's settings at any time — it will be set again on your next visit, but deleting it does not disrupt the website for you.

More about the cookies Cloudflare sets is described in Cloudflare's official documentation: List of Cloudflare cookies and Cloudflare's Cookie Policy.

No third-party embedded content

The site does not embed third-party content (videos, social media posts, etc.). All references to such content are ordinary links leading to the respective external website. Nothing is loaded from external servers during your visit to Optibg.com, and for this reason no third-party cookies can be set.

Cookies from other websites

Your browser may contain cookies generated by other websites you have visited. They have no connection to Optibg.com. You can view, delete and manage cookies in your browser at any time through its privacy settings.

In case you follow a link from Optibg.com to an external website, that website's privacy policy and cookie policy apply. More information — in the blog's Privacy Policy.

Version of the Cookie Policy: 1.2

This Cookie Policy is used together with the blog's Privacy Policy and Terms of Use.

Published on: 21 September 2026. Updated on: 14 October 2026 (clarified that the hosting provider's security cookie is not set at present — the feature that sets it is not enabled in the site's settings and the decision is for the website as a whole; the claims "technically impossible to switch off" and "HttpOnly and Secure" were removed because they are not confirmed by Cloudflare's current documentation; a Bulgarian legal citation added — Art. 4a of the Electronic Commerce Act).