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@webtoolbench

WebToolBench

@webtoolbench·Joined October 2026

Free web tools that explain their results: DNS, email deliverability, SEO, developer utilities and business calculators.

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Free DNS, email, SEO, developer and business tools that explain what they found. 33 tools, no sign-up, nothing stored.

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Free DNS, email, SEO, developer and business tools that explain what they found. 33 tools, no sign-up, nothing stored.

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WWebToolBenchinwebtoolbench.hashnode.dev·1h ago · 2 min read

Random UUIDs as MySQL primary keys: the cost nobody mentions

Version 4 UUIDs are 122 random bits formatted as 36 characters. Their value is that any system can generate one without coordinating with anything else, and collisions stay effectively impossible. Tha