SEO Tools

The viewport meta tag is a rendering instruction, not an SEO tag — but its absence causes mobile browsers to render pages in 980px desktop mode, directly affecting Google's mobile-first indexing quality assessment. Here's what width=device-width and initial-scale=1 actually do (and why user-scalable=no is an accessibility violation), how preconnect hints reduce Google Font load times by 100-300ms, and why HTTP header versions of CSP are more secure than meta http-equiv versions.

An SEO checklist returns findings — not priorities. A missing H1 on a 3-visitor page and a slow load time on a 50,000-visitor page are both "failures" with completely different business impact. Here's the impact-effort matrix for SEO issue prioritization, why fixing checklist issues on your top 20 pages by traffic has more impact than fixing them across all pages uniformly, and why technical and on-page issues should be separate workstreams with different owners.

Two pages on your own site competing for the same search query is a fully within-your-control problem — yet one of the most common issues found in SEO audits, often developing through organic content growth without coordination. Here's how to identify cannibalization via Search Console ranking fluctuation, when to consolidate vs differentiate competing pages, and when apparent overlap isn't actually a problem.

Learn what Open Graph tags are, how og:title, og:image, and og:description control social media link previews, how to add Twitter Cards, and how to generate all OG tags with a free tool.

alt="" and a missing alt attribute look nearly identical in your HTML editor — one extra empty-quotes substring — but to a screen reader, they mean opposite things: alt="" says "decorative, skip this," while missing alt often triggers an announcement of the filename itself. Here's the practical difference, why every img tag should have an alt attribute (even if empty), and the special case where alt="" on an image-as-link removes the link's accessible name entirely.

An og:image that looks correct in Facebook's sharing debugger can still fail to render on other platforms — because relative URLs break crawler fetching, platform dimension requirements differ, WebP may not be supported by some crawlers, and CORS restrictions can block image access. Here's the complete technical checklist: absolute URLs, supplementary og:image:width/height/type tags, the 1200×630 universal dimension, and why SVG og:images fail.

Learn how keyword density works, why density alone isn't a ranking signal, how to use it to find over-optimised content and topical gaps, and how to analyse any page with a free keyword density tool.

A redirect chain often isn't deliberately created — it accumulates through years of independent, individually-reasonable migrations, each adding one more hop without anyone updating the original redirect. Here's why accumulated hops risk search engines failing to fully traverse a chain, the "flattening" fix, and the common CDN-to-origin protocol mismatch that causes HTTPS redirect loops.

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.

A link extractor shows every link on a page — but navigation, footer, and sidebar links that appear on every page by template are not the same as editorial content links. Google's Reasonable Surfer model assigns different link equity probabilities based on position, anchor text, and click likelihood. Here's what distinguishes content links from structural links, how to use extracted link data to find content link patterns, and why anchor text diversity matters for internal linking signals.