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When Strict URLs Becomes a Performance Bottleneck

A performance cautionary note for large catalogs where URL normalization plugins can become unexpectedly expensive during page generation.

URL cleanup plugins can feel harmless on small sites and become a real performance problem on large imported catalogs. The donor case hit that wall while loading thousands of products and hundreds of categories.

The observed symptom

After importing around 8,000 products and 600 categories, page generation became extremely slow. Profiling eventually pointed to the Strict URLs plugin as one of the major bottlenecks.

Why this happens

Plugins that inspect and normalize large sets of links or resource paths can scale badly when the site tree becomes much larger than the plugin’s original assumptions.

What to take from this

  • profile large catalogs instead of guessing
  • do not assume every SEO plugin stays cheap at scale
  • on big sites, URL policy must be designed with performance in mind
Newer post

Why a Simple @SELECT TV Binding Can Trigger a 500 Error

A migration troubleshooting note for cases where a previously normal @SELECT TV suddenly starts failing after a hosting move.

Older post

Giving phpThumb Preview Files Readable SEO-Friendly Names

A practical image-generation tweak for teams that want cache thumbnails to use readable filenames instead of opaque hashes.