📚 SEO Knowledge Base

Optimizing your Title and Description - the key to a higher CTR and better Google rankings

Like a well-organized book - with chapters and subsections

A special language you use to tell Google about your business

How your page looks when someone shares it on Facebook

Professional-looking links on the X platform (formerly Twitter)

International SEO - optimizing multilingual sites and hreflang tags

How does your page present itself in the list of search results?

Is your site as secure as a bank vault?

A legal requirement and a trust signal - for users and for Google

Does your site work well on a phone? That is how most people view it!

A map and a set of instructions telling Google how to navigate your site

Which address is the "official" one when the same content lives at several URLs

Google's three scores that measure the real experience of using your site

Do your old addresses lead to the right place without unnecessary stops?

How old is your domain and what does the WHOIS record say about it?

Your site is missing from Google? Check with the site: operator, diagnose the cause and speed up indexing step by step

Is your content valuable and helpful to your readers?

Are you using the right words in the right amount?

Are your page addresses readable and logical?

Accessibility (WCAG) and SEO - how to make your site work for every user?

Keyword Consistency - keyword alignment in on-page optimization

Does the same content repeat in multiple places - on your site or across the web?

Does your brand appear in answers from ChatGPT, Perplexity, and AI Overviews?

Where do the roads from your site lead, and do they all work?

Are your images lightweight, described, and helping your SEO?

Does your site load fast, or do users run away?

A list of servers allowed to send email on behalf of your domain - the foundation of anti-spoofing protection

The rule that tells servers what to do with mail that fails SPF and DKIM checks

A digital seal attached to every email - proof that the content was not altered in transit

Digital signatures that guarantee a DNS answer was not swapped by an attacker

The DNS entry that points to the server which should receive email sent to your domain

The two core DNS records: A points to a server's IP address, CNAME is an alias to another name

A universal DNS record for arbitrary text - used for SPF, DKIM, DMARC and domain verification

Your emails land in spam or never arrive at all? Here are the most common causes and a concrete repair plan

Changed a DNS record and it "does not work"? That is propagation - see how long it really takes and how to speed it up

Ready-made SPF values and instructions on where to add SPF, DKIM and DMARC records in the home.pl, nazwa.pl, OVH and cyberfolks panels