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PHP Workers: The Quiet Limit on Concurrent Traffic

Every WordPress request has to pass through a PHP worker, and there are only so many to go around. Here is what that limit actually means, how it fails, and how caching lets you serve far more traffic without adding a single worker.

by Robbie·May 23, 2026·5 min read

Anycast DNS: Why Your Nameserver Choice Affects Every Visit

DNS resolution happens before a single byte of your site loads, so how your nameservers are routed and cached has an outsized effect on real-world speed. Here is what anycast actually does, how to think about TTLs, and what you're paying for with premium DNS.

by Robbie·May 17, 2026·5 min read