A 508 means your account reached its limit for simultaneous requests – entry processes – at that moment. It is not about how many visitors you have had today; it is about how many requests were being handled at the same instant.
Why it happens
- Pages that are slow to build. The slower each request, the longer it occupies a slot, and the fewer visitors it takes to fill them all. Speed is the real fix.
- Bots. A crawler working through a large shop can open many connections at once. This is one of the most common causes.
- A genuine spike after a mailshot, a social media post or a listing going live.
- A stuck process holding a slot without finishing.
What to do
Check Resource Usage in cPanel; it will show whether you are hitting entry processes and when. Then:
- Turn on caching so pages are served without rebuilding them each time. This usually solves it outright.
- Look at your visitor statistics for bot traffic and consider a robots.txt crawl delay.
- Fix genuinely slow pages, particularly slow database queries.
If the site is simply outgrowing the package, that is worth a conversation rather than a workaround.
