Everything at https://valpero.com/tools is free, no signup, fair-use rate-limited. You don't need a Valpero account to use any of it. Below is a one-line summary of each tool and when you'd reach for it.
SSL Check — /tools/ssl
Quickest answer: is my certificate valid, and when does it expire? Returns issuer, days remaining, and whether the chain is sane. Good for a quick smoke test.
TLS Audit — /tools/tls-audit
Goes much deeper than SSL Check. We probe which TLS protocol versions your server still accepts (TLS 1.0/1.1 are broken in 2026), what cipher suite you negotiated, whether HSTS is set, and grade the result A–F like SSL Labs.
Reach for this when:
- Your auditor or a customer asked you to prove TLS 1.2+ only.
- A browser flagged your site as "not secure" but the cert looks fine.
- You're hardening a public-facing service before a launch.
Ping / Availability — /tools/ping
Fires a single HTTP request from our infrastructure and reports the status code + latency. Tells you whether the site is reachable from a neutral viewpoint, not just from your office Wi-Fi.
DNS Lookup — /tools/dns
Standard A / AAAA / MX / NS / TXT / CNAME / SOA lookup. One resolver, one shot.
DNS Propagation — /tools/dns-propagation
The same lookup, but against 10 different public resolvers at once: Cloudflare, Google, Quad9, OpenDNS, AdGuard, Yandex, DNS.WATCH, Comodo, Level3, CleanBrowsing.
Use this immediately after changing a record. If all 10 agree, you're good. If they disagree, propagation is still rolling out — wait a few minutes and re-check.
HTTP Headers — /tools/headers
Dumps every response header for the URL plus a 0–6 security score based on whether HSTS, CSP, X-Frame-Options, X-Content-Type-Options, Referrer-Policy and Permissions-Policy are present.
Mixed Content Scanner — /tools/mixed-content
Loads an HTTPS page and looks for any http:// resources — scripts,
stylesheets, images, iframes — that would break the padlock. Common
after a half-finished migration to HTTPS.
Sitemap Validator — /tools/sitemap-validator
Parses your sitemap.xml (or sitemap-index), counts URLs, validates
the XML, and surfaces missing lastmod tags. The first thing to check
when Google Search Console says it can't read your sitemap.
Port Checker — /tools/port
Is TCP port 22 / 80 / 443 / 5432 open on this host? We support a short whitelist of well-known ports — random-port scans are not allowed.
WHOIS Lookup — /tools/whois
Domain registrar, creation date, expiry, nameservers. Useful for checking whether you actually own a domain you think you own.
Speed Test — /tools/speedtest
Streams a 5–50 MB payload from our origin and measures real download bandwidth. Useful when you want to compare your connection against the route Valpero takes to your server.
All in one place
The tools page has tabs that switch between them without a reload. Bookmark https://valpero.com/tools and you've got the kit.
If you want any of these to run continuously and alert you on changes — that's monitoring, and it's what we do.