No Adblocker Detected Message Overview Context and Purpose The site criticizes internet ads for wasting time and degrading the internet experience. It emphasizes that ad revenue per view is very low, often forcing websites to overload ads to survive. It encourages supporting authors directly with financial contributions instead of relying on ad views. Despite the criticism, ads are considered by most users as part of the internet experience. To address this, the site displays a subtle message if no adblocker is detected. Message Details The message reads: > "No adblocker detected. Consider using an extension like uBlock Origin to save time and bandwidth. Click here to close." It includes a recommendation for the open-source adblocker uBlock Origin. The message is: Shown on the side without covering or interfering with content. Not displayed if screen space is insufficient. Closable by the user, with the closed state remembered via a cookie. Technical Implementation HTML Structure: A <div> with an initially hidden message container (id="ad-note-hidden"), dynamically changed to visible when relevant. JavaScript (/nativeads.js): Checks if a cookie notice-shown exists to avoid repeated messages. If not, changes the container ID to show the message and inserts the notification text with a clickable "close" link. Clicking "close" hides the message and sets the cookie. CSS Styling: #ad-note and #ad-note-hidden default to display: none; Media queries reveal the message only on screens larger than 30em height and 75em width. Positioned fixed at the bottom-right, with dark background and white border for subtle visibility. Detection Robustness: The presence of multiple ad-related CSS classes on the container helps detect adblockers that remove elements. The script loading (nativeads.js) can be blocked by network filtering adblockers like "uBlock Origin Lite.” This two-pronged approach reduces false negatives. Limitations: Cannot detect DNS-level blocking without serving actual ads. JavaScript is necessary to display the message; no message appears in browsers without JS. Message visibility depends on CSS loading success. Additional Notes The message is designed to be unobtrusive and respectful of layout and user preferences. The author credits Stefan Bohacek for the original idea but has improved it to reduce false positives and scope cookie settings. The page also reiterates their stance against commercial adblockers promoted via ads, suggesting these may be untrustworthy or profit-driven. Site Footer Highlights Links to previous posts, yearly archives, and tags such as "Programming," "Astrophotography," and "Assorted software." License: Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License. Explicitly states the website content is not licensed for machine learning training or content creation. Supports IPv6 networking and invites users to check connectivity. Provides email for questions and comments. --- This approach encourages users to adopt responsible adblocking, respects content creators, and provides a transparent, user-friendly notice without intrusive advertisements.