CPU and memory limits on hosting — what to do if exceeded

Each shared hosting plan has limits on CPU, memory, processes, and I/O. If your site constantly exceeds them — it slows down or gets temporarily throttled.

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Where to see current usage

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1. Log into cPanel
2. In the sidebar — Statistics or Resource Usage
3. Graphs show CPU, RAM, IO, and Entry Processes for the last 24 hours

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Typical causes of exceedance

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• Bot attack on the signup or login form
• Inefficient SQL query (full table scan)
• Heavy WordPress plugin (especially sliders with big images)
• Search bots aggressively crawling every 5 minutes
• A cron job that runs longer than the schedule interval

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What to do

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1. Enable cache: for WP — WP Super Cache, LiteSpeed Cache, W3 Total Cache
2. Set up a CDN: Cloudflare’s free plan offloads 60–80% from the server
3. Block bad bots via .htaccess or fail2ban
4. Remove unused plugins — each adds load
5. Optimize the DB: make sure there are indexes on frequently queried fields

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If even after optimization the limits aren’t enough — move up a plan or to a VPS. The Navju Cloud manager helps with the move.