How to Find and Fix Broken Links on Your Website
Find broken links on your website, understand 404 and other errors, and fix them with redirects or updates to protect SEO and users.
Guide SEO
Free SEO Guides – step-by-step tutorials and tips for pdfseotools.com tools.
How Search Engine Spiders See Your Page (and Why It Matters)
See your page the way Googlebot sees it: which text, links and tags crawlers read, what they skip and how that affects indexing.
How to Check Your Keyword Ranking Position on Google
Check where your page ranks on Google for several keywords by country, why results differ by device and location, and how to improve.
Keyword Density Explained: How Much Is Too Much?
What keyword density is, why there is no perfect percentage and how to use keywords naturally without stuffing or hurting rankings.
How to Check an SSL Certificate and Fix 'Not Secure'
Check if an SSL certificate is valid, who issued it and when it expires, and fix the browser's 'Not Secure' warning on your website.
How to Write Meta Title and Description Tags for SEO
Write meta titles and descriptions that rank and get clicks: ideal length, keyword placement, examples and mistakes to avoid.
How to Analyze Meta Tags of Any Web Page
Check the title, description, robots, viewport and og:type of any page, spot missing or duplicate tags and learn how to fix them.
How to Do Keyword Research for Free (Beginner Guide)
A beginner's guide to free keyword research: collect real search phrases, check what competitors target and pick long-tail keywords you can rank for.
How to Find the IP Address and Host of Any Website
Find the IP address, hosting company and server location of any website in seconds, and learn what that information can tell you.
How to Check if Your Domain or IP Is Blacklisted
Check if your domain's IP is on about 80 spam blacklists, why it happens and how to get delisted so your emails reach the inbox again.
DNS Records Explained: A, MX, CNAME, TXT and NS
A, AAAA, CNAME, MX, NS, TXT and SOA records explained simply: what each DNS record does, real examples and how to look them up for any domain.
How to Check Domain Age and Why It Matters for SEO
Find out when a domain was registered and how old it is, what WHOIS data shows and how much domain age really matters for SEO.