hellosoftware

Free tools

Free tools, no sign-up.

Practical checks for your domain and website. They run on our own server, don't need an account, and we don't keep what you check.

  • Email security checker

    See whether a domain is protected against people sending email in its name, and what to fix if it isn't.

  • Website security headers

    Check how a website protects its visitors: HTTPS, the security headers browsers act on, and how its cookies are set.

  • DNS lookup

    Look up a domain's DNS records in one go: addresses, mail servers, name servers, text records and certificate rules.

  • Page weight check

    Measure what a page sends before anything else loads: the HTML's size and compression, redirects, response time, and what it pulls in.

How they work

Each tool sends one request to our Cloudflare Worker, which looks up public DNS records or fetches the page you give it, and sends the results back. Nothing you enter is stored. To stop misuse, each visitor can run 20 checks a minute.

Tell us what you're building.

Email us about your project: what it needs to do, who it's for and when you'd like it live.