Guides
In-depth guides
Longer walkthroughs for specific setups: real screenshots, code you can paste and the reason behind every step. The short fix page for each check lives under Learn.
All guides
385 guides, page 5 of 33.
- SEO10 min read
CSR vs SSR: which rendering is better for SEO and speed?
CSR vs SSR is the choice between building the page in the visitor's browser or on the server. For pages that must rank, server-side rendering or static generation wins; client-side rendering suits pages behind a login. How each works, what it does to crawling and Core Web Vitals, and how to choose per page.Updated 4 Oct 2026 - SEO13 min read
ERR_TOO_MANY_REDIRECTS: how to fix a redirect loop
ERR_TOO_MANY_REDIRECTS means the page keeps redirecting in a circle, so the browser gives up. The visitor fix, and how site owners find the two rules that fight and fix them.Updated 4 Oct 2026 - SEO11 min read
Favicon and touch icons: sizes and formats that work everywhere
Four files cover every browser tab, Google result, iPhone home screen and Android install prompt. The sizes, formats and link tags, one script to generate them, and how to check the result.Updated 4 Oct 2026 - Security13 min read
Google Safe Browsing: check your site and clear a flag
Google Safe Browsing is the list behind the red "Deceptive site ahead" warning. Check whether your site is listed, find what triggered it, clean it and request a review.Updated 4 Oct 2026 - SEO13 min read
How to do a 301 redirect on Apache, nginx, Cloudflare, WordPress, Netlify and Vercel
How to do a 301 redirect wherever your site runs: copy-ready rules for Apache, nginx, Cloudflare, WordPress, Netlify and Vercel, for one page or a whole list, and how to test them.Updated 4 Oct 2026 - Security20 min read
HTTP security headers: what each one does and the set that earns an A
HTTP security headers are instructions your server sends with every page that switch off risky browser defaults. This guide explains each one in plain terms, gives the set that earns an A, and shows how to add them on any server.Updated 4 Oct 2026 - Speed14 min read
HTTP/2 vs HTTP/1.1: multiplexing, header compression and what changes for your site
HTTP/2 vs HTTP/1.1: HTTP/2 sends every file of a page over one connection at once and compresses headers, where HTTP/1.1 queues files six at a time. What changes, what does not, and what happened to server push.Updated 4 Oct 2026 - SEO14 min read
Internal links: how many, where, and with what anchor text
Internal links are how Google finds your pages and how ranking signal moves between them. Realistic numbers per page, where links count most, anchor text that works, and a 15-minute audit.Updated 4 Oct 2026 - SEO20 min read
International SEO: site structure, hreflang and language targeting
International SEO makes search engines show the right language and country version of your site to each searcher. The decisions, the signals Google uses and how to check them.Updated 4 Oct 2026 - SEO11 min read
Meta refresh and JavaScript redirects: how Google treats them and when to use one
A meta refresh redirect or a JavaScript redirect moves visitors after the page has loaded, not on the server. How Google treats each, when they are the only option and how to write one safely.Updated 4 Oct 2026 - WordPress12 min read
Multilingual WordPress: WPML, Polylang and hreflang done right
Pick the URL structure, set the default language and x-default, and fix the hreflang failures the checker finds on WPML, Polylang, TranslatePress and Weglot: missing return links, dead alternates.Updated 4 Oct 2026 - SEO10 min read
Nginx and Apache access logs: where to find them and how to read them
Where the nginx access log and the Apache access log live, what each field of the combined log format means, how to change the log format, and the commands that answer common questions.Updated 4 Oct 2026
Guides tell you how. Your report tells you what.
Run a free report to see which of these guides apply to your site.