Articles in Free Tool Guides Category
Explore in-depth articles and insights on Free Tool Guides. Stay updated with the latest trends, tips, and best practices in our blog.
301 vs 302 Redirects: Which to Use and How to Check a Chain
What 301, 302, 307 and 308 redirects mean for browsers and Google, when each is right, and how to find redirect chains, loops and HTTPS downgrades.
5 min read
October 25, 2026
How Stripe Fees Work: Card Rates, Surcharges and Refunds
How Stripe calculates card fees in the US, EEA and UK, how international and conversion surcharges stack, what refunds cost, and the price-to-charge formula.
6 min read
October 25, 2026
Open Graph Tags for Link Previews: What X, LinkedIn and Slack Read
The Open Graph and X card tags a link preview needs, image sizes that work everywhere, why old previews stick around, and how to set the tags in Next.js.
5 min read
October 25, 2026