DevOps11 min
Nginx Reverse Proxy Guide (2026)
Nginx reverse proxy — SSL, load balancing, and caching.
DevOps Tools
DNS, SSL, cron, and Docker helpers for shipping and debugging infrastructure — 12 free tools, no signup required.
DevOps Tools focus on infrastructure checks and config helpers: DNS lookups, SSL certificate inspection, cron expressions, and Docker Compose scaffolding. They shorten the feedback loop when you are shipping a service and need to confirm DNS propagation or certificate expiry without SSHing into a box first.
All DevOps Tools
Who these tools are for
- SREs validating DNS and TLS after a deploy
- Platform engineers drafting Compose files for local stacks
- Developers scheduling jobs with cron expressions they can verify
How to choose
- Use DNS Checker after changing A/AAAA/CNAME records
- Use SSL Checker before a launch to catch chain or expiry issues
- Build Compose locally, then adapt for production orchestrators
FAQ
Are DNS and SSL checks server-side?
Yes. These tools must query the network from our servers. We rate-limit requests and do not sell query data.
Can I check internal hostnames?
Public DNS/SSL tools only see the public internet. Internal hostnames require your VPN or private tooling.
Related guides
DevOps11 min
CI/CD with GitHub Actions: Complete Guide (2026)
Build CI/CD pipelines with GitHub Actions workflows.
DevOps11 min
Linux Commands Every Developer Needs (2026)
grep, awk, sed, ssh, systemd, and more — practical Linux for devs.
More articles on the blog.