Developer shares key lessons from running a free online TI-84 calculator site.

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The creator of ti84calculator.tech details the technical and strategic steps taken to operate the free tool. Key measures included deferring non-critical scripts to ensure fast loading on school devices and using CSS for responsive design. To improve search rankings, the site pairs the calculator with helpful, keyword-targeted text content and guides. The developer also implemented long-term caching for speed and an embed feature to encourage backlinks from educators.

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