Dogcheck from Undertale as error pages

Replaces all error pages with dogcheck from Undertale

Enhance your browsing experience with the Dogcheck from Undertale Chrome extension! This playful extension replaces all error pages, such as 404s, with the iconic Dogcheck room from Undertale, injecting a dose of nostalgia and fun into frustrating moments. Every error page features a randomly selected Undertale track to accompany the visuals, bringing the game's charm directly to your browser.

For user convenience, a mute button is included, allowing you to silence the music if desired, though many fans find the soundtrack a delightful addition. If you're a fan of Undertale or want to add a unique touch to your web errors, this extension is the perfect choice.

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By:: krzys_h
Users:: 4,000+
Rating:: 4.63

(72)
Version:: 1.0 (Last updated: 2019-05-05)
Creation date:: 2019-04-29
Risk:: Moderate risk impact Low risk likelihood
Permissions:: webRequest
<all_urls>
Size:: 2.34M
Full description:: See detailed description
Source:: Chrome Web Store
Updated:: a day ago

Ranking

# 14,548 ▼ 464

Other rankings

#1609 in Just for Fun ▲ 1 #9 in error keyword 18 ▼ 3

User reviews

Users love this extension for its fun, cute, and entertaining way of transforming error pages using Toby Fox's Dogcheck character and songs, making browsing errors enjoyable and unique. However, several users report that it sometimes falsely flags valid pages as errors, causing access issues on certain sites like CurseForge and sites behind Cloudflare verification. Additionally, some users experience it not working at all, seeing normal error pages or blocked errors instead. Despite these drawbacks, the extension is generally praised and recommended for its intended purpose.

Pros

The extension is fun and funny, providing entertainment when encountering error pages.
Users find it cute and adorable, with positive mentions of Toby Fox's Dogcheck character appearing on error pages.
It works well in delivering its intended purpose of replacing error pages with Dogcheck animations and songs.
Many users appreciate the randomness and uniqueness it adds to browsing, making error pages enjoyable.
Users recommend the extension to others due to its enjoyable features.

Cons

The extension sometimes flags valid pages (such as Cloudflare verification or some websites) as error pages incorrectly.
It does not work for all users, with some reporting it showing normal error pages or an error like ERR_BLOCKED_BY_CLIENT.
Some websites like CurseForge show the Dogcheck unnecessarily during loading, causing issues.
Multiple websites do not open properly because the extension treats all 40* HTTP responses as errors and redirects to the Dogcheck page erroneously.

Recent reviews

Мило

Alex Pobulavets, 2025-02-06

its very fun to see it other than that means the page doesnt work

Sebastian, 2024-12-12

ta weno

Maritza Noriega, 2024-10-29

View all user reviews

Extension safety

Risk impact

Dogcheck from Undertale as error pages requires a few sensitive permissions. Exercise caution before installing.

Risk impact analysis details

Critical Allows access to all websites, posing a significant security risk as it can monitor and modify data from any visited site.
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Risk likelihood

Dogcheck from Undertale as error pages has earned a fairly good reputation and likely can be trusted.

Risk likelihood analysis details

High This extension has low user count. Unpopular extensions may not be stable or safe.
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