Our Blog
Enterprise SPA Audits Made Simple
Published on January 13, 2026
Most SEO crawlers fetch the HTML and hope for the best, which falls apart the moment you audit a React or Angular app with 200k URLs. Here's the short playbook for auditing SPAs without ending up with a report full of ghost pages.
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What's the Best SEO Audit Tool? The Engineer's Answer.
Published on January 11, 2026
Skip the roundups. What actually matters in an SEO audit tool, from JavaScript rendering to data access, plus the 30-minute test that settles it.
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Agency SEO Audits at Scale
Published on January 10, 2026
Most SEO audit tools were built for one person looking at one site, which is why agencies end up duct-taping reports together every time a client asks for a PDF. Here's what agency owners actually need, and how I built Black SEO Analyzer to handle it.
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Technical SEO for Ecommerce Sites
Published on January 09, 2026
Facets, variants, pagination, out-of-stock pages, and schema: the order I audit ecommerce sites in, with the Shopify, Magento, and WooCommerce traps.
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SEO Audit CLI for Developers
Published on January 08, 2026
Run SEO audits from the terminal with JSON output, jq filters, and a CI regression check that fails the build when someone ships a noindex by accident.
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Ahrefs Site Audit is Good. A Dedicated Crawler is Better.
Published on January 07, 2026
Ahrefs is a good suite, but its site audit is a bundled feature. Where it falls short for technical SEO and what a dedicated crawler does differently.
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What Your SEO Audit Software Is Missing (And How to Find It)
Published on January 06, 2026
Every SEO tool checks the same 50 things, but your real problems are weirder than that. Here's why custom extraction is what separates a crawler you tolerate from one you actually rely on.
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v25.12.29 Release Notes
Published on January 04, 2026
Last release of 2025. Noice! Quite a few patches thanks to bug reports from the community! 😄 We also now have a really good looking topic cluster output type. Check out the release on GitHub.
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Enterprise SEO Audit Strategies
Published on January 03, 2026
Enterprise SEO audits aren't a different discipline, just the same loop with more expensive plumbing. Here's how I run them on sites big enough that "just use Screaming Frog" isn't a real answer.
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How to Find and Fix Every Broken Canonical Tag on Your Site
Published on January 01, 2026
Canonical chains, loops, and tags pointing at redirects quietly cost rankings. How to map the whole canonical graph and fix it at the template level.
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Fix Crawl Errors Without the Headache
Published on January 01, 2026
Bucket crawl errors by failure mode, group them by URL pattern, pick 301, 410, or fix, then verify with a re-crawl. The loop I use on sites of any size.
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SQLite: The Underappreciated Database
Published on December 31, 2025
Black SEO Analyzer stores crawl data in SQLite, and people keep giving me the "oh, interesting" face about it. Here's why a single file on disk beats a Postgres cluster for crawl data.
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Word Count is a Vanity Metric (Fight Me)
Published on December 30, 2025
Word count is the page-length equivalent of judging a book by its page count. I added it to Black SEO Analyzer because people kept asking, but chasing a 2,000-word target is a playbook from 2012 that'll actively hurt your rankings today.
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The Broken Links Report That Actually Makes Sense
Published on December 29, 2025
Most broken link reports dump 4,000 rows on you and call it a day. The `--output-type broken-links` flag in Black SEO Analyzer gives you the linking page, the anchor text, and the status code for every dead link.
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DeepCrawl Alternative for Tech SEOs
Published on December 28, 2025
DeepCrawl became Lumar and moved upmarket. What DeepCrawl did well, what to look for in a replacement, and the desktop crawler I use for technical audits instead.
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OnCrawl Alternative That Doesn't Lag
Published on December 27, 2025
OnCrawl's log analyzer is solid, but the UI falls apart the second you throw a few million URLs at it. Here's why BSA is what I reach for when the audit gets big, SPA-heavy, and needs to pipe into Python.
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Screaming Frog vs Semrush Site Audit
Published on December 26, 2025
Screaming Frog melts my laptop on big sites. Semrush misses things. Here's where BSA fits between them, and when I still reach for each one.
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Ahrefs vs Semrush Site Audit: The Technical SEO Truth
Published on December 26, 2025
I ran the same sites through Ahrefs and Semrush site audits. How they compare, the three gaps both share, and who should use which tool.
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Screaming Frog vs Sitebulb: Pick BSA
Published on December 25, 2025
Screaming Frog and Sitebulb were fine until I tried crawling a 1.4 million URL site and my laptop nearly melted. Here's why I moved to BSA and haven't looked back.
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Semrush Site Audit Alternative for Speed
Published on December 24, 2025
Semrush's site audit is slow, quota-capped, and misses JavaScript-rendered content. Where it breaks for technical SEO and what I use instead.
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Sitebulb Alternative That Actually Scales
Published on December 22, 2025
Sitebulb is fine until you point it at 2 million URLs and watch your laptop become a space heater. Here's why I switched to a CLI-first crawler for enterprise audits, and why I stopped trusting dashboards that hide the raw numbers.
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Screaming Frog Alternative for Modern Audits
Published on December 21, 2025
Screaming Frog is great until you hit a million JS-rendered URLs and your laptop starts begging for mercy. Here's why I stopped fighting the desktop ceiling and built BlackSEOAnalyzer instead.
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CMS or DIY? Which is better for SEO?
Published on December 19, 2025
If you're wondering whether a CMS or a hand-built site is "better for SEO," the annoying truth is: it usually doesn't matter much. CMSs win early because they ship with sane defaults (sitemaps, canonicals, robots controls) and fewer ways to accidentally light your rankings on fire. DIY can rank just fine too-if you cover the basics and resist the urge to get "creative" with redirects and indexing. Also: I still hand-code my own sites in Python for control, which is either dedication or a hobby in self-inflicted complexity. Probably both.
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What Makes Schema Markup so Valuable
Published on December 19, 2025
Schema markup isn't "feeding the bots." It's you being explicit about what your page is so Google doesn't have to guess-and guess wrong-when it decides how (or if) to show you. In this post, I break down schema as a simple translation layer, why classification beats clever copy, and how a little JSON-LD can keep your product pages from getting treated like blog posts after the next "helpful" redesign.
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Google says "SEO for AI is the same as SEO for Search"
Published on December 19, 2025
Google says AI SEO is still SEO, and they're mostly right. What actually changed with AI answers, what's rebrand, and what I'd do this quarter.
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