Why I started manually auditing every "niche" batch before it goes into my catalog

Been sorting through a large raw vendor export by country/niche this week, and it was a good reminder of something easy to overlook: bulk site lists almost always have junk mixed in, and it's not always obvious from the metrics alone.

A few things I caught in one batch:
- 2 domains with naming patterns that screamed pirated movie-streaming sites, despite being tagged under a generic "Entertainment" niche. DA/DR looked fine on paper - the red flag was purely in the domain name itself.
- A domain tagged as "Entertainment" that, on closer look, was almost certainly a primary school's website (totally mismatched niche tag).
- A crypto/gambling news site that got swept into a "Gaming" bucket because of overlap in vendor tagging, even though it had nothing to do with the actual niche I was building.

None of this shows up if you just filter by DR/DA/traffic and call it done. If any of that had gone straight into a client-facing catalog, it's either a wasted placement (wrong audience fit) or, worse, a placement on a site you really don't want your name or your client's brand anywhere near.

Lesson: automated filtering gets you 90% of the way, but a manual domain-by-domain sanity check before anything ships to a client is non-negotiable, especially on bulk/international batches where you're less familiar with the local naming conventions.

Anyone else build in a manual review step for this, or have a method for catching this kind of thing at scale without eyeballing every row?

I will definitely keep the manual review. Metrics are useful for narrowing things down, but they don't tell the whole story. Even a quick check of the domain, niche, and recent content can save you from bad placements and a lot of headaches later.