SEO
Every article on the AldeaCode blog tagged with this topic.
Free SEO Tools You Can Use Without an Account (2026)
20+ free SEO tools that work in your browser without signup: slug generator, URL cleaner, contrast checker, alt text helper and more. No login, no upload.
Read article →X / Twitter Character Limits in 2026 (+ LinkedIn, SEO, SMS)
Character limits for X (Twitter), LinkedIn, Instagram, SEO meta tags, SMS and push notifications in 2026. With a free counter that runs in your browser.
Read article →How to Write Good URL Slugs for SEO (2026 Guide)
Pick URL slugs that age well: strip accents, use hyphens not underscores, set a Unicode policy and avoid migrations that bleed link equity.
Read article →How WordPress, Ghost, Contentful and 6 More Generate Slugs
How nine CMS platforms turn titles into URL slugs: WordPress, Ghost, Contentful, Strapi, Webflow and more. Defaults, gotchas, migration tips.
Read article →llms.txt File: How to Set It Up (Astro, WordPress, Shopify)
What llms.txt is and how to add it to your site so ChatGPT, Claude, and Perplexity can read it. Copy paste setup for Astro, WordPress, Shopify, Nginx.
Read article →How to Write Alt Text for SEO and Accessibility (Examples)
Write alt text Google ranks and screen readers respect. Good vs bad examples, width, height and srcset rules that boost image SEO without keyword stuffing.
Read article →Hreflang and Canonical Tags Explained (with Examples)
How hreflang and canonical tags work together for international SEO. Code examples, reciprocity rules, and the small mistakes that break rankings.
Read article →Does HTTPS Affect SEO Rankings? The Honest 2026 Answer
HTTPS is required, security headers help indirectly, mixed content kills you. The 5 security signals that move Google rankings in 2026, plus how to test each.
Read article →Semantic HTML for SEO: The 5 Tags Google Actually Reads
The 5 semantic HTML tags Google uses to understand your page: h1, main, article, nav, section. Plus a 10-minute audit checklist to find what your site is missing.
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