Catalog

Score text readability with Flesch Kincaid and grade level estimates

Calculate Economic Order Quantity to minimize total inventory ordering and holding costs.

Guide to the JavaScript event loop, call stack, microtask, and macrotask queues.

Reference for web performance KPIs: TTFB, FCP, LCP with target thresholds.

ERC-20, ERC-721, ERC-1155, Ownable and Pausable pattern guides with security considerations and gas estimates

ERC-20, ERC-721, ERC-1155, Ownable and Pausable pattern guides with security considerations and gas estimates. Built for

ERC-20, ERC-721, ERC-1155, Ownable and Pausable pattern guides with security considerations and gas estimates

ERC-20, ERC-721, ERC-1155, Ownable and Pausable pattern guides with security considerations and gas estimates. Built for

Deliver webhook payloads with retry logic and delivery tracking

Science Prizes data API with random, search, and bulk endpoints.

Validate webhook signatures from major providers Stripe GitHub Slack

8 developer tools with essential commands and pro tips — Git, Docker, npm, VS Code, Linux.

Guide to web security headers: CSP, Referrer-Policy, Permissions-Policy.

Guide to webhooks: HMAC signature verification, retry logic, and idempotency.

Downsample high-frequency sensor data to reduce volume

Extract and decode only the header from a JWT token

Full deliverability check including SMTP verification and MX

Score DevSecOps maturity across 10 pipeline security practices — SAST, DAST, SCA, secrets scanning, and more.

Detect role-based emails like info@ support@ admin@ noreply@

Scrape Google web search results, news, images, shopping, and autocomplete suggestions.

Detect site search providers and search infrastructure on websites

15 common English idioms with meanings, surprising historical origins, and example sentences.

Validate DMCA counter-notice completeness with all 7 required statutory elements.

Look up airports by IATA/ICAO code, city, or country with coordinates and timezone data.

Solar wind and renewable energy capacity and generation data

Solar system planets, stars, distances, and comparative planet data — no API key needed.