No account, no limits beyond fair use. The network tools run from PulseTrace's servers and use the same scoring as the monitors, so what you see here is what a monitor would report.
Check any domain's SSL/TLS certificate in seconds.
Open tool Live checkGrade any URL's HTTP security headers A+ to F.
Open tool Live checkLook up every DNS record type for a domain from Cloudflare, Google, Quad9 or the domain's own authoritative nameservers, and check its SPF and DMARC records for common mistakes.
Open tool Live checkCheck whether a website is down for everyone or just you.
Open tool CalculatorConvert an availability target (99.9%, 99.95%, 99.99%) into allowed downtime per day, week, month and year, or turn measured downtime into an uptime percentage and see how much error budget is left.
Open tool CalculatorBuild a cron expression from minute, hour, day, month and weekday fields, read it back in plain English, and preview the next ten run times in UTC.
Open toolFair use: the live checks are rate-limited per address and only contact public hostnames. They never store what they fetch. If you need the same check every minute, from twelve regions, with alerts — that is the product, and ten monitors are free.
Ten monitors, one region and a status page are free forever — no card, no sales call.