
LeetCode
Exercism
Codewars
HackerRank
CodeSignal
CodinGame
CodeCombat
Project Euler is a series of challenging mathematical/computer programming problems that will...

UptimeRobot
StatusCake
Pingdom
Better Stack
Better Uptime
Uptime Kuma
Hyperping
Website health monitoring for your entire site, not just the homepage.

Which is more popular?
Based on our record, Project Euler seems to be a lot more popular than Oh Dear!. While we know about 415 links to Project Euler, we've tracked only 11 mentions of Oh Dear!.
Website, pricing, platforms and company facts side by side.
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| Website | projecteuler.net | ohdear.app |
| Pricing | ||
| Platforms | — | |
| Company | — | Startup from Belgium · 1 - 9 employees · 2018 |
| Listed in |
In their own words, as submitted to SaaSHub.


No description of Project Euler yet.
Oh Dear monitors the health of every website a team manages. Oh Dear checks uptime every minute from multiple locations and monitors SSL certificates, DNS records, domain expiration, scheduled tasks, broken links, mixed content, performance, Lighthouse, APIs, application health, ping, TCP ports,...
What each product offers, as listed by its team.


Possible disadvantages
An editorial look at what each product does well and who it suits.


Overall verdict
Why this product is good
Recommended for
Overall verdict
Why this product is good
Recommended for
Oh Dear! is recommended for web developers, IT professionals, and business owners who need to ensure their websites are always operational and running efficiently. It's particularly useful for those managing multiple sites who want a centralized solution for monitoring and maintaining website health.
Walkthroughs and reviews on video.
Project Euler Challenges 1–4 - Coding Challenges with Florin
More videos
Adding your first site in Oh Dear
More videos
How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing Project Euler and Oh Dear!.
Oh Dear!'s answer:
Oh Dear!'s answer:
Oh Dear monitors the health of the entire website, not only whether a single URL responds. Oh Dear monitors uptime, SSL certificates, DNS records, domain expiration, scheduled tasks, broken links, mixed content, Lighthouse performance, APIs and application health. Oh Dear also gives teams one dashboard for every website they manage.
Oh Dear!'s answer:
Oh Dear is a strong fit for teams that manage multiple websites and want to find problems before clients or visitors report them. Every plan includes every monitoring feature, so teams can monitor website availability, technical health and content quality without assembling several separate tools. Broader observability platforms remain better suited to infrastructure telemetry, logs, traces and application performance monitoring.
Oh Dear!'s answer:
Oh Dear is built for developers, technical leads, DevOps teams and CTOs responsible for one or more websites. Oh Dear is especially useful for teams managing client websites, website portfolios, recurring reports and incident communication.
Oh Dear!'s answer:
Mattias Geniar and Freek Van der Herten founded Oh Dear in Belgium in 2018. Mattias Geniar brought an infrastructure and security perspective, while Freek Van der Herten brought a web-development perspective. Together, the founders built Oh Dear to monitor the complete health of a website rather than uptime alone. Oh Dear has continued to grow through pragmatic product development and direct customer feedback.
Oh Dear!'s answer:
Oh Dear is primarily built with PHP, Laravel and Livewire.
Share your experience with using Project Euler and Oh Dear!. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


Project Euler provides a large collection of challenges in the domain of computer science and mathematics. The challenges typically involve writing a small program to figure out the solution to a clever mathematical...
If you are studying algorithms and computer programming, chances are you’ve heard of Project Euler. A collection of mathematical problems made for problem solvers who are interested to combine mathematics and...
We have no reviews of Oh Dear! yet. Be the first one to post
Recommendations tracked on public social media and blogs since March 2021.


Let's hope this is going to help me solve some more Project Euler [1] problems! [1] https://projecteuler.net/. - Source: Hacker News / 4 months ago
Https://projecteuler.net/ for "Thinker" brain food. (it still has the issue of not being a pragmatic use of time, but there are plenty interesting enough questions which it at least helps). - Source: Hacker News / 8 months ago
I have a Project Euler (https://projecteuler.net/) account. Though I do not register at all on the leader board I will sometimes work obsessively on a problem just to make one of the level icons light up for me. There is not really... - Source: Hacker News / 9 months ago
When you're building a Laravel application, you might want to send notifications to users via Telegram. This is useful for things like sending updates and alerts. For example, I'm subscribed to Telegram notifications on sites like Oh... - Source: dev.to / 8 months ago
For web-application monitoring, we’ve [1] gone the approach of outside-in monitoring. There’s many approaches to monitoring and depending on your role in a team, you might care more about the individual health of each server, or the... - Source: Hacker News / about 2 years ago
Https://ohdear.app in combination with https://spatie.be/docs/laravel-health. Source: over 3 years ago
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