SEC Form 4 insider trades by ticker - owner, title, transaction type, shares and price

Swiss public transport station board - next departures with line, destination, platform and delay for any station (opendata.ch)

Consumer product recall check - search CPSC recalls by product or brand for hazards, remedies, manufacturers and units affected

Check a domain against the MetaMask phishing blocklist and allowlist and flag one-letter lookalikes of popular crypto sites, with the matched entry

US Treasury yield curve - 1 month to 30 year yields with 1d, 1w, 1m and 1y changes in basis points, 2s10s spread and inversion flag

Recent preprint search on the Open Science Framework - title, abstract, DOI and link across PsyArXiv, SocArXiv and other servers

Email authentication posture for a domain - SPF with lookup count, DMARC policy and reporting, DKIM selectors, MX, MTA-STS, TLS-RPT and BIMI with prioritised issues

UN Sustainable Development Goal indicators for a country - latest values and trends

Check a package version on deps.dev - licences, known advisories with CVSS and CVE aliases, deprecation, provenance and source project for npm, PyPI, Maven, Go, Cargo, NuGet

Snowpack near a western U.S. or Alaska location (SNOTEL) - snow water equivalent, depth and percent of median

NASA image and video library search - titles, descriptions, dates, keywords and thumbnails for Apollo, Hubble, Webb and other missions

Solar panel output calculator - annual and monthly kWh for a PV system at any lat/lon from PVGIS, with optimal tilt, specific yield and irradiation

Active hurricanes and tropical storms - NHC current storms with category, wind, pressure, position, movement and advisory link

Earnings calendar for any date - reporting companies, timing, market cap and consensus EPS

Space weather now - NOAA geomagnetic storm, radio blackout and solar radiation scales, Kp index and 24h peak, live solar wind speed and Bz, aurora outlook and 3-day probabilities

Check an EVM address against the ScamSniffer blacklist of wallet drainer, phishing and scam addresses and report whether it is flagged and the list size

Website security grade for a hostname (Mozilla HTTP Observatory) - letter grade, score and tests passed

OpenSSF Scorecard for a GitHub repository - overall 0-10 score and every security check (branch protection, signed releases, SAST, pinned deps) with weakest areas

Tax-inclusive price calculator - pre-tax amount and embedded tax from a total and rate

Convert annual salary to hourly, weekly and monthly gross equivalents