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Insights, tutorials, and updates about free subdomains, DNS, and developer infrastructure.

Blog

Anycast DNS Explained

A practical guide to anycast DNS Explained. Learn how to configure DNS, set up SSL, and deploy your project on a free is-cool-me subdomain.

⏱ 8 min read
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Deployment

The Benefits of Using a Custom Subdomain for Your Blog or Website

Explore the advantages of using a custom subdomain for your blog or website, including improved branding and organization. Learn how a custom subdomain can enhance your online presence and simplify content management.

⏱ 8 min read
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Deployment

The Benefits of Using a Subdomain for API Development and Testing

Using a subdomain for API development and testing can improve security, organization, and scalability. In this post, we'll explore the benefits of using a subdomain for API development and testing, including improved security and easier maintenance.

⏱ 8 min read
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Security

The Benefits of Using a Subdomain for API Development and Security

Using a subdomain for API development can enhance security and organization, making it easier to manage and maintain your APIs. Subdomains for APIs can also improve scalability and flexibility.

⏱ 8 min read
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Security

The Benefits of Using Subdomains for API Development and Security

Understand the advantages of using subdomains for API development and security, including improved organization, enhanced security, and better scalability. This blog post highlights the key benefits of subdomains in API development.

⏱ 8 min read
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Security

The Benefits of Using Subdomains for API Security and Development

Learn about the benefits of using subdomains for API security and development, including improved security, better organization, and enhanced scalability, and discover how to implement subdomains for API development.

⏱ 8 min read
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Infrastructure

Building a Global CDN on Cloudflare's Anycast Network

How Cloudflare's anycast architecture works under the hood, why it makes subdomains faster globally, and what it means for your sites performance and security.

⏱ 8 min read
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Technical

DNS Caching: Debugged Once and For All

A deep dive into DNS caching at every layer — browser, OS, router, ISP, and authoritative DNS — with concrete steps to flush caches and debug propagation issues in real time.

⏱ 8 min read
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Performance

The Importance of DNS Configuration for Website Performance and User Experience

Proper DNS configuration is crucial for website performance and user experience, and this blog post discusses the importance of DNS configuration and how it can impact your website. The main keyword is 'dns configuration for website performance'.

⏱ 8 min read
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Performance

The Importance of DNS Configuration for Website Performance and User Experience

Learn about the crucial role of DNS configuration in optimizing website performance and enhancing user experience. This blog post discusses the impact of DNS configuration on website speed and user satisfaction.

⏱ 8 min read
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Performance

The Impact of DNS Configuration on Website Performance and Security

DNS configuration can have a significant impact on website performance and security. In this post, we'll explore the importance of DNS configuration and how it can affect your website's performance and security, including page load times and vulnerability to attacks.

⏱ 8 min read
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Performance

The Impact of DNS Configuration on Website Performance and User Experience

Proper DNS configuration is crucial for website performance and user experience, as it can affect page load times, server response, and overall site reliability. Optimizing DNS settings can significantly improve website speed and usability.

⏱ 8 min read
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Blog

DNS Propagation Explained for New Users

A practical guide to dNS Propagation Explained for New Users. Learn how to configure DNS, set up SSL, and deploy your project on a free is-cool-me subdomain.

⏱ 8 min read
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Blog

DNS Propagation in Modern Web Development

A practical guide to dNS Propagation in Modern Web Development. Learn how to configure DNS, set up SSL, and deploy your project on a free is-cool-me subdomain.

⏱ 8 min read
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Security

The Domain Takeover Prevention Checklist Every Developer Needs

A practical security checklist to prevent subdomain takeover vulnerabilities — from proper CNAME validation to ensuring DNS records are deleted when deploying services.

⏱ 8 min read
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Blog

Edge Computing for Developers

A practical guide to edge Computing for Developers. Learn how to configure DNS, set up SSL, and deploy your project on a free is-cool-me subdomain.

⏱ 8 min read
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Blog

Email on Subdomains MX SPF DKIM Basics

A practical guide to email on Subdomains MX SPF DKIM Basics. Learn how to configure DNS, set up SSL, and deploy your project on a free is-cool-me subdomain.

⏱ 8 min read
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Productivity

The Free Tools That Replaced Paid SaaS for Our Entire Team

A curated list of the free-tier tools we rely on to run is-cool-me — from DNS management to monitoring, error tracking, and CI/CD — and how to maximize value from each.

⏱ 8 min read
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Hosting

The Future of Web Development: Trends and Predictions for Free Hosting and Subdomains

The web development landscape is constantly evolving, with new trends and technologies emerging every year. In this post, we'll explore the future of web development, including trends and predictions for free hosting and subdomains, and how they will shape the industry.

⏱ 8 min read
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Hosting

The Future of Web Development: Trends and Opportunities in Free Hosting and Subdomains

Examine the current state of web development and the role of free hosting and subdomains in shaping its future. This blog post discusses emerging trends and opportunities in web development, including the impact of free hosting and subdomains on the industry.

⏱ 8 min read
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Hosting

The Future of Web Development: Trends and Opportunities in Free Hosting and Subdomains

Explore the latest trends and opportunities in free hosting and subdomains, and how they are shaping the future of web development, including the benefits of subdomains for API development and security.

⏱ 8 min read
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Hosting

The Future of Web Development: Trends and Opportunities in Free Hosting and Subdomains

Explore the latest trends and opportunities in free hosting and subdomains, and how they are shaping the future of web development, including the impact on developer tooling and infrastructure.

⏱ 8 min read
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Hosting

The Future of Web Development: Trends and Opportunities in Free Hosting and Subdomains

The web development landscape is evolving, with free hosting and subdomains playing a significant role in shaping the future of online applications and services. Emerging trends and opportunities in free hosting and subdomains are transforming the way we build and deploy websites.

⏱ 8 min read
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Hosting

The Future of Web Development: How Free Hosting and Subdomains Are Revolutionizing the Industry

Examine the impact of free hosting and subdomains on the web development industry, including increased accessibility, reduced costs, and new opportunities for innovation. Discover how free hosting and subdomains are shaping the future of web development.

⏱ 8 min read
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Blog

How to Handle Abuse Reports Responsibly

A practical guide to how to Handle Abuse Reports Responsibly. Learn how to configure DNS, set up SSL, and deploy your project on a free is-cool-me subdomain.

⏱ 8 min read
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Operations

How We Handle Abuse Reports Without Breaking Legit Users

The moderation system behind is-cool-me — how we detect abuse, handle false positives, balance free speech with platform safety, and keep the majority of users experience uninterrupted.

⏱ 8 min read
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Blog

How We Think About Fair Use for Free Subdomains

A practical guide to how We Think About Fair Use for Free Subdomains. Learn how to configure DNS, set up SSL, and deploy your project on a free is-cool-me subdomain.

⏱ 8 min read
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Security

The Importance of Subdomain Security for API Development and Protection

Discuss the significance of subdomain security for API development and protection, including the risks of inadequate security measures. This blog post highlights the need for robust subdomain security to safeguard API data and prevent potential threats.

⏱ 8 min read
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Business

Indie SaaS Pricing Psychology: What Every Developer Should Know

How to price your SaaS product when you are competing with free alternatives — understanding value anchoring, the freemium psychological trap, and when free is actually the right model.

⏱ 8 min read
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Security

Let's Encrypt vs Cloudflare Flexible SSL: A Practical Comparison

Understanding the real security differences between Let's Encrypt (end-to-end encryption), Cloudflare Full Strict (edge encryption), and Cloudflare Flexible SSL (partial encryption).

⏱ 8 min read
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Operations

Managing 1000+ Subdomains Without Losing Your Mind

The systems and tools we use at scale to manage thousands of subdomains — from automated DNS provisioning to bulk record updates, monitoring, and expiration management.

⏱ 8 min read
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Blog

Post Incident Review Template for DNS Outages

A practical guide to post Incident Review Template for DNS Outages. Learn how to configure DNS, set up SSL, and deploy your project on a free is-cool-me subdomain.

⏱ 8 min read
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Blog

Preventing Takeovers After Deploy Deletions

A practical guide to preventing Takeovers After Deploy Deletions. Learn how to configure DNS, set up SSL, and deploy your project on a free is-cool-me subdomain.

⏱ 8 min read
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Blog

Private Networking for Developer Infrastructure

A practical guide to private Networking for Developer Infrastructure. Learn how to configure DNS, set up SSL, and deploy your project on a free is-cool-me subdomain.

⏱ 8 min read
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Security

Reading DNS Logs Like a Pro: Common Patterns and Red Flags

Learn to identify suspicious DNS activity by understanding common log patterns — from normal CNAME chains to signs of domain takeovers, phishing, and brand impersonation.

⏱ 8 min read
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Blog

Subdomain Clustering Benefits

A practical guide to subdomain Clustering Benefits. Learn how to configure DNS, set up SSL, and deploy your project on a free is-cool-me subdomain.

⏱ 8 min read
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Blog

Subdomain Clustering for Scalability

A practical guide to subdomain Clustering for Scalability. Learn how to configure DNS, set up SSL, and deploy your project on a free is-cool-me subdomain.

⏱ 8 min read
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Deployment

The Pros and Cons of Using a Subdomain vs a Custom Domain for Your Website or Application

Weigh the advantages and disadvantages of using a subdomain versus a custom domain for your website or application, considering factors such as branding, SEO, and technical complexity. Make an informed decision about subdomains vs custom domains.

⏱ 8 min read
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Security

The Benefits of Using a Subdomain for API Development and Security

Using a subdomain for API development and security can provide an additional layer of protection and organization for your APIs, and this blog post explores the benefits of this approach. The main keyword is 'subdomains for api development and security'.

⏱ 8 min read
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Security

The Benefits of Using a Subdomain for Your API: Security, Scalability, and More

Explore the advantages of using a subdomain for your API, including enhanced security, improved scalability, and better organization. Learn why subdomains are a game-changer for API development.

⏱ 8 min read
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Opinion

Why Free Subdomains Matter for Bootstrappers and Indie Hackers

A personal argument for why free subdomain providers like is-cool-me are critical infrastructure for the indie hacker ecosystem, enabling anyone to build and ship without upfront costs.

⏱ 8 min read
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Blog

Why Subdomain Requests Get Rejected

A practical guide to why Subdomain Requests Get Rejected. Learn how to configure DNS, set up SSL, and deploy your project on a free is-cool-me subdomain.

⏱ 8 min read
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