SEO Tools

Robots.txt, meta robots, and X-Robots-Tag aren't competing options — each addresses a different goal (crawl budget, index exclusion for HTML, index exclusion for PDFs/files), and "belt and suspenders" combining robots.txt blocking with noindex doesn't add safety, it disables the noindex entirely. Here's a goal-first decision framework for which mechanism to reach for, and why genuinely sensitive content needs authentication, not extra robots directives.

A page can have a perfect title tag, meta description, and canonical URL — and still show a broken or generic preview when shared on social media, because search snippets and social previews are controlled by entirely different sets of meta tags. Here's what Open Graph (og:title, og:description, og:image, og:url) and Twitter Card tags actually control, why image size/aspect-ratio matters, and why platforms' aggressive caching means updated images may not show up on previously-shared links without manually triggering a re-fetch.

Alt text that works for both screen readers and SEO follows specific principles: contextual relevance, appropriate keyword inclusion without stuffing, and different approaches for different image types. Here's the craft behind writing alt text that does both jobs well.

Most links on a page are navigation. Sorting those from editorial links, then checking anchor text and destinations, is where a link extract earns its keep.

Alt text for accessibility and alt text for SEO look identical in HTML — but the goals that inform them pull in different directions. Here's where they diverge: context-dependency (the same image needs different alt text in different contexts), keyword stuffing (which fails the "read it aloud" test), the functional images where SEO keyword inclusion is actively wrong, and the complex images where neither alt text alone nor SEO keywords capture enough information.

A complete SEO checklist covering technical foundations, on-page optimisation, content quality, Core Web Vitals, structured data, and link building — with prioritisation guidance for maximum impact.

A link extractor showing 200 links tells you they exist — not whether 30 of them now lead nowhere. Link rot accumulates silently because broken outbound links produce no visible error on the page containing them, and external sites break links for reasons entirely outside your control. Here's why this requires recurring (not one-time) checks, the different fix approaches depending on why a link broke, and the particularly tricky case of links that "work" but now redirect to unrelated content.

Raw keyword density is an outdated metric. TF-IDF is more useful. Neither is as important as comprehensive topical coverage with natural language. Here's how search engines actually measure relevance and what keyword density tools are actually good for.

Schema markup tells Google what you claim — but Knowledge Graph inclusion depends on what Google can verify through corroborating signals like Wikidata items, Wikipedia articles, and sameAs references to authoritative third-party profiles. Here's how the @id property creates a canonical entity identifier, why sameAs is one of the highest-value Organization schema properties, the merchant trust layer that affects Product schema rich result eligibility beyond valid syntax, and why VideoObject Key Moments are consistently underused.

Correct hreflang implementation doesn't guarantee correct language targeting — Google treats hreflang as a strong hint, not a command, and will override it if the targeted language version has thin content, poor quality signals, or unreliable crawl accessibility. Here's what Google checks alongside hreflang (content quality, backlinks from the target language's web, user behavior), why machine translation creates a quality threshold problem, and how partial hreflang coverage is handled.