FreeWebCheck
Blog
Guides and tutorials about IP addresses, online privacy, VPNs, and networking.
Website Accessibility: Why It Matters for SEO
Accessible websites rank better and reach more users. Learn how accessibility affects SEO, what WCAG standards mean, and how to audit your site for common accessibility issues.
How to Secure Your Website: A Practical Guide
Website security doesn't have to be complicated. Here's a practical checklist covering SSL certificates, CSP headers, HSTS, mixed content, and common vulnerabilities — all things you can check with free tools.
A Guide to Schema Markup for Beginners
Schema markup helps search engines understand your content and display rich results. Learn what structured data is, which schema types matter, and how to add it to your site.
How to Test Website Speed and Performance
Slow websites lose visitors and rankings. Here's how to test your site speed, interpret the results, and fix the most common performance bottlenecks — using free tools.
What Is a CDN and Why Your Site Needs One
A CDN speeds up your site, protects against traffic spikes, and improves global performance. Here's how content delivery networks work and why every website should use one.
Browser Fingerprinting: The Tracking Method That Works Without Cookies
Your browser reveals 200+ data points about your device. Even without cookies, websites can build a unique fingerprint that follows you across the web. Here's how fingerprinting works and what you can do about it.
Free SEO Tools That Actually Work (No Credit Card Required)
You don't need expensive SEO subscriptions to improve your site's rankings. Here are free tools for keyword research, technical audits, link analysis, and performance checks — all without signing up.
How to Choose a VPN Provider (I've Tested a Dozen)
I've tested over a dozen VPN services over the past few years. Here's what actually matters when choosing a VPN — speed, privacy, price, and the things marketing won't tell you.
A Complete Guide to Understanding HTTP Status Codes
HTTP status codes tell you exactly what's happening between a browser and a server. Learn what every class of status code means, which ones matter for SEO, and how to find broken pages on your site.
How I Took a Client's Site From 5MB to 400KB With the Image Toolkit
A client's photography portfolio loaded painfully slow. Three rounds of compression with the Image Toolkit dropped total page weight by 92%. Here's exactly what settings I used.
Is Public Wi-Fi Safe? What Happens When You Connect
I ran my own tests on a public Wi-Fi network to see what data leaks. Here's what I found and how to protect yourself without giving up the convenience of coffee shop internet.
SEO for Beginners: What Actually Moves the Needle
I spent months chasing SEO tactics that didn't matter. Here's what actually helped my site rank — and the stuff I wish I'd ignored from the start.
How to Check Your SSL Certificate (And Why You Should Care)
A valid SSL certificate keeps your site secure and your visitors trusting. Learn how to check SSL certificates, understand the details, and troubleshoot common issues — all with free tools.
I Tested 3 VPNs With Our VPN Check Tool — Here's What Got Detected
Ran NordVPN, ProtonVPN, and a lesser-known provider through our VPN detection tool. Two were flagged immediately. One wasn't. Here's what that means for your privacy.
How to Use IP Compare and IP Lookup for Network Troubleshooting
Need to analyze multiple IP addresses? Learn how to use IP Compare for side-by-side analysis and IP Lookup for detailed single-address checks — perfect for network audits, server monitoring, and security reviews.
Common SEO Mistakes Small Websites Make
Missing meta descriptions, broken heading hierarchies, slow pages, no structured data. Here are the most common SEO mistakes small websites make and how to fix each one.
How to Compress Images for the Web Without Losing Quality
Large images slow down your site and frustrate visitors. Learn how to compress, convert, and resize images for the web using free in-browser tools — no uploads, no sign-up.
PNG vs JPEG vs WebP: Which Image Format Should You Use?
JPEG, PNG, and WebP each have distinct strengths. Learn the differences in compression, quality, transparency, and browser support so you can choose the right format for every image on your website.
Technical SEO Checklist: Canonical URLs, Structured Data & Site Architecture
A complete technical SEO checklist covering canonical tags, schema markup, sitemaps, robots.txt, URL structure, and HTTPS. Fix these technical foundations and give your site its best chance to rank.
What Is a VPN Detection Checker and How Does It Work?
VPN detection tools check whether an IP address belongs to a VPN, proxy, or datacenter. Learn how they work, why they're used, and how to check your own connection.
Why My Page Link Analyzer Doesn't Work Like Ahrefs (And Why That's OK)
I built a free page link analyzer. It won't replace Ahrefs or Majestic. But for analyzing on-page links, spotting issues, risk scoring, and competitor research, it's surprisingly useful.
What Happens When You Type a Domain? A DNS Lookup Breakdown
Every time you visit a website, your browser performs a DNS lookup. Here's what A, AAAA, CNAME, MX, NS, TXT, SOA, and SRV records actually do — and how to check them for free.
I Built a Free SEO Analyzer — Here Are the Checks It Runs
One weekend I built a free on-page SEO checker. It runs 19 checks against any URL. I ran it on my own site and found things I'd been missing for months.
3 On-Page SEO Mistakes We Made (And How We Fixed Them)
We ran our own SEO analyzer across the site and found three recurring issues that were hurting our rankings. Here's exactly what they were and how we fixed them.
I Ran a Full Website Audit on My Site — Here's What I Found
Built a website audit tool, then ran it on my own site. Found broken links, missing meta descriptions, accessibility issues, and more. Here's what I learned and how you can audit your own site.
How IP Location Works and Why It's Not Always Accurate
Wondering why your IP location shows a different city? Learn how IP geolocation works, why it's often imprecise, and what affects its accuracy.
How to Hide My IP Address
Your IP address reveals your approximate location and ISP to every website you visit. Here are the most common methods to hide your IP address and protect your identity online.
IPv4 vs IPv6: What's the Difference?
IPv4 and IPv6 are two versions of the Internet Protocol. Learn the key differences between IPv4 and IPv6 addresses, including format, security, and address space. Find out which one you're using.
What Is My IP Address?
Your public IP address is a unique identifier assigned to your internet connection by your ISP. Learn what it reveals, how to find yours, and how to protect your privacy online.