
JavaScript.com
JavaScript Quiz
Learn JavaScript
JavaScript Knowledge Map
Do you speak JavaScript?
50 Tips on JavaScript
dateDropper Javascript
A full list of JavaScript operators with examples

Uptime Kuma
have i been pwned?
Healthchecks.io
cStatus
Securiwiser
Sonar by Templarbit
Uptime, breach monitoring, heartbeats and server metrics — one dashboard for freelancers managing client infrastructure.

Which is more popular?
Based on our record, JavaScript Operator Lookup seems to be more popular. It has been mentioned 1 time since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | joshwcomeau.com | securyblack.com |
| Pricing | — | |
| Platforms | — | |
| Company | — | Startup from Spain · 1 - 9 employees · 2026 |
| Listed in |
In their own words, as submitted to SaaSHub.


No description of JavaScript Operator Lookup yet.
SecuryBlack is a monitoring dashboard built for freelancers and small agencies who manage websites and infrastructure for multiple clients. Instead of juggling Uptime Robot, Have I Been Pwned, Healthchecks.io, and a server panel separately, SecuryBlack gives you one place to see the status of all...
What each product offers, as listed by its team.


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


No analysis of JavaScript Operator Lookup yet.
Overall verdict
Why this product is good
Recommended for
How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing JavaScript Operator Lookup and SecuryBlack.
SecuryBlack's answer:
SecuryBlack combines three tools into one: continuous email breach monitoring, uptime monitoring, and heartbeat checks for backup verification. Most tools do one of these. SecuryBlack does all three in a single dashboard, so homelabbers and developers stop juggling separate subscriptions.
SecuryBlack's answer:
Uptime Kuma monitors your services but doesn't check breaches. HIBP checks breaches but not uptime. Healthchecks.io verifies cron jobs but nothing else. SecuryBlack replaces all three with one unified dashboard and one subscription at €19/month — or free.
SecuryBlack's answer:
Homelabbers, sysadmins, and developers who self-host services, run automated backups, and want to know immediately if something breaks or their email appears in a data breach. Technical users tired of managing multiple monitoring tools separately.
SecuryBlack's answer:
Built out of personal frustration with tool fragmentation. Running a homelab meant paying for and managing Uptime Kuma, HIBP, and Healthchecks separately. SecuryBlack started as a side project to consolidate everything into one place, and grew into a product for anyone running their own stack.
SecuryBlack's answer:
React (frontend), PostgreSQL, Docker, Rust (telemetry agent OxiPulse via gRPC/OTLP), self-hosted on Hetzner.
Share your experience with using JavaScript Operator Lookup and SecuryBlack. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.


If you replace your || with ?? You should get the behaviour you are after. This is a good reference for what the operators do in js: https://joshwcomeau.com/operator-lookup. Source: about 5 years ago
Tracking SecuryBlack since Apr 2026.
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