DEV Community: Md Tousif

Event‑driven model

Md Tousif — Sun, 21 Jun 2026 22:29:13 +0000

The async architecture works on an event‑driven model. Instead of waiting for one task to finish before starting another, the ESP32 listens for events and responds immediately. This means the microcontroller can handle multiple tasks in parallel, such as serving a webpage, reading sensor data, and updating outputs all without delays.

For example, if a user opens a webpage hosted on the ESP32 while another sensor is sending data, the async server ensures both tasks are processed smoothly. This architecture reduces lag and improves responsiveness, making it perfect for real‑time applications.

Benefits of Event‑Driven Handling
Using event‑driven handling provides several advantages:

Non‑blocking performance: The ESP32 can serve multiple clients without freezing or slowing down.
Efficient resource use: Memory and CPU cycles are used more effectively, which is critical for small devices.
Scalability: You can add more features (like APIs, sensor dashboards, or control panels) without worrying about performance drops.
Real‑time response: Ideal for IoT projects where instant feedback is required, such as smart home automation or monitoring systems.
Some of the simple examples to show how async handling works on ESP32:

For Basic Async Web Server Setup

For handling multiple routes:

Optimizing Webservers Performance in 2026
A webserver in 2026 must be fast, reliable, and secure to meet the demands of modern applications and users. With increasing traffic, complex workloads, and evolving technologies, optimization is no longer optional and it’s essential for uptime and user satisfaction.

Best Practices for Speed and Uptime
Load Balancing

Distribute traffic across multiple servers to prevent overload.
Improves response times and ensures high availability.
Caching Strategies

Use reverse proxies like Nginx or Varnish to cache static content.
Reduces server load and speeds up delivery.
Resource Monitoring

Track CPU, memory, and disk usage with tools like Prometheus or Grafana.
Helps detect bottlenecks before they cause downtime.
Security Hardening

Apply SSL/TLS, firewall rules, and DDoS protection.
Keeps the server safe while maintaining uptime.
Automation and Scaling

Use container orchestration (Docker, Kubernetes) to scale resources dynamically.
Ensures consistent performance during traffic spikes.
Future Trends in Web Hosting
AI‑Driven Optimization Predictive algorithms will automatically adjust server resources based on traffic patterns.

Edge Computing Hosting closer to users reduces latency and improves speed.

Green Hosting Sustainable data centers powered by renewable energy will become standard.

Serverless Architectures Developers will rely more on serverless platforms, reducing the need for traditional hosting.

Quantum‑Ready Security Encryption methods will evolve to withstand quantum computing threats.

Causes & Fixes Of Web Servers

Md Tousif — Sun, 21 Jun 2026 22:28:03 +0000

Common Causes and Quick Fixes
Run Command to see web server is running or not: sudo systemctl status apache2

Run Command to see nginx: sudo systemctl status nginx

Common Causes and Quick Fixes
Web Server Stopped

Cause: Apache or Nginx service has crashed or is not running.
Fix: Restart the service using simple commands like systemctl restart nginx or systemctl restart apache2.
Firewall Blocking Cloudflare

Cause: Firewall rules are preventing Cloudflare IPs from connecting.
Fix: Whitelist Cloudflare IP ranges in your firewall settings so they can reach your server.
Server Listening on Wrong IP

Cause: The server is only listening on localhost (127.0.0.1) instead of the public IP.
Fix: Update your configuration to listen on all interfaces or the correct public IP.
SSL/TLS Mismatch

Cause: Cloudflare is set to Full (Strict) mode but your server does not have a valid SSL certificate.
Fix: Install a valid SSL certificate or adjust Cloudflare’s SSL settings.
Server Overload

Cause: Too many requests or insufficient resources.
Fix: Optimize your server configuration or upgrade resources to handle more traffic.
ESP32 Async Web Server Basics
The ESP32 async web server is a powerful way to handle multiple client requests without blocking the main program. Unlike traditional synchronous servers, which process one request at a time, the async model allows the ESP32 to manage several connections simultaneously.

This makes it ideal for IoT projects where devices need to respond quickly and reliably to multiple users or sensors.

Web Server

Md Tousif — Sun, 21 Jun 2026 22:25:30 +0000

A web server is the backbone of any website. It delivers content to users when they visit a page and ensures that information flows smoothly between the site and the visitor’s browser. Without a reliable web server, websites can face downtime, slow performance, or even complete inaccessibility.

This makes hosting an essential part of building a strong online presence.

Reliable hosting means your web server is always available, secure, and fast. When a server is dependable, visitors can access your website anytime without interruptions. This builds trust with users and helps businesses maintain credibility.

A reliable web server also protects against errors, reduces downtime, and ensures smooth performance even during high traffic. In simple words, reliable hosting keeps your website alive and running without problems.

Benefits of Cheap Web Server Hosting
Choosing a cheap web hosting server can be a smart option, especially for startups, small businesses, or personal projects. Affordable hosting allows you to launch a website without spending too much money. Even though it is low‑cost, many providers still offer good speed, basic security, and customer support.

This makes it easier for individuals and businesses to start online journeys without heavy investment. In short, cheap web hosting servers give you the chance to grow online at a budget‑friendly price.

Dofollow vs. Nofollow Backlinks

Md Tousif — Sun, 21 Jun 2026 22:23:41 +0000

Dofollow vs. Nofollow
You’ll come across these terms when you start working on backlinks, so let us understand them clearly.

A dofollow link passes authority from the linking site to yours. It is good. It is the kind of backlink that directly contributes to your domain authority and rankings.

A nofollow link includes a small piece of code that tells Google, “don’t pass authority through this link.” These are common in blog comments, sponsored content, and social media. They don’t directly improve your rankings, but they can still send real traffic your way.

Anchor text matters too. The words used as the clickable link text give Google context about what your linked page is about. But don’t go overboard trying to stuff your target keywords into every backlink you earn. Over-optimised anchor text is not a good sign and can often act as a red flag.

nofollow and dofollow backlinks
How to Actually Build Backlinks for Your Business
Building a robust backlink system for your business is a tough process. Most people skip this part. But it is the boring work that yields more returns.

Building a backlink profile takes time. But you have to be consistent. There are practical strategies that work and some of them are way easier than you’d think.

Good & Bad Backlinks

Md Tousif — Sun, 21 Jun 2026 22:20:46 +0000

What Makes a Good Backlink
A strong backlink contains the following characteristics:

Relevance: It comes from a website that’s related to your business. A link from a fitness blog to your gym equipment store makes sense. A link from a gambling site to that same store will raise some alarms.
Authority: The linking site has a solid reputation and trust score of its own. These can be established newspapers, industry associations, government bodies, or well-known trade publications.
Natural placement: The link sits within useful, relevant content. It doesn’t look forced or buried in a list of 200 other links on a page that clearly exists just to distribute links.
Good anchor text: The clickable words used for the link should be contextually appropriate. “Click here” is weak. “Best budget running shoes” linking to your product page is much better.
A practical example: imagine a university’s housing advice page linking to a local property management company’s website. That’s a natural, relevant, high-authority backlink. The university isn’t in the business of selling property management, but they’re genuinely pointing students toward a useful resource. Google respects that.

What Makes a Bad Backlink
Bad backlinks are very real, and they can hurt your business.

Links from spammy, low-quality websites with no genuine audience
Links from sites in completely unrelated industries
Paid link schemes
Links that appear on pages with hundreds of other outbound links, which dilute any value they offer
If you’ve ever received an email from a stranger offering to “boost your SEO” by placing links on their network of sites, please delete it. That’s almost certainly a link scheme, and if Google catches it, your rankings will suffer.

Backlinks In 2026

Md Tousif — Sun, 21 Jun 2026 22:17:23 +0000

Let me start with the basics. I have heard business owners throw around this word multiple times without having any idea of what it means. So, let us understand what backlinks are.

A backlink is simply a link on someone else’s website that points to a page on yours. That’s it. If a food blogger writes about the best local restaurants and links to your café’s website, you’ve just earned a backlink. If a national news outlet covers your product launch and drops a link to your homepage, that’s a backlink too.

Backlinks are also called “inbound links” or “incoming links.”

Now, here’s where it gets interesting. When Google’s crawlers roam the internet, they don’t just read the content on your page. They follow the links connecting one site to another. And every time they find a link pointing to your website, they essentially record it as a vote. Think of it this way: whenever a politician wins with a large number of votes, you think this person must be trustworthy because so many people voted for him. A similar thing happens to websites: the more backlinks they get, the more trustworthy they seem, and the higher their ranking is.

Comfort For Children

Md Tousif — Sun, 21 Jun 2026 22:14:59 +0000

Children find comfort in routines and familiar surroundings. To make the experience smoother, try to keep things as normal as possible. Maintain their regular schedule for meals, playtime, and bedtime.

You can also create a sense of connection by leaving behind familiar objects. A favorite toy, blanket, or even a note from you can provide reassurance when you’re not around. These small details act as emotional anchors, helping your child feel secure.

Additionally, share important routines and preferences with the caregiver. The more they can mirror your usual caregiving style, the more comfortable your child will feel.

Practicing Short Separations
If your child has never been away from you before, jumping straight into a long session can be overwhelming. Instead, start with short periods of separation. Leave your child with the caregiver for a brief time while you stay nearby or run a quick errand.

Gradually increase the duration as your child becomes more comfortable. This step-by-step approach allows them to adjust without feeling abandoned or anxious. Over time, they’ll learn that you always come back, which builds trust and confidence.

Communication With The Babysitter

Md Tousif — Sun, 21 Jun 2026 22:13:58 +0000

Communication plays a crucial role in easing your child’s fears. Explain in simple, age-appropriate language what this experience is and why someone else will be spending time with them. Avoid overcomplicating the explanation—clarity and reassurance are key.

You might say that the person is friendly and will play with them, help with meals, and make sure they’re safe while you’re away. Let them know when you’ll be leaving and, more importantly, when you’ll return. Children often feel more secure when they know the separation is temporary.

Encourage your child to ask questions. Their concerns might seem small to you, but addressing them thoughtfully can make a huge difference in how they feel.

Babysitter Needs

Md Tousif — Sun, 21 Jun 2026 22:07:25 +0000

Letting someone else take care of your child for the first time can feel like a big emotional leap, for both you and your little one. Whether it’s for a date night, a work commitment, or simply a few hours of personal time, introducing a new caregiver into your child’s world is a meaningful milestone. It’s natural to feel a mix of excitement and anxiety, but with the right preparation, this transition can become a positive and even enjoyable experience for everyone involved.

This guide will walk you through how to gently prepare your child for their first babysitter experience in a way that builds trust, reduces fear, and creates a sense of comfort.
Before diving into preparation strategies, it’s important to step into your child’s shoes. For them, a new caregiver is not just a new face ,it’s a change in routine, a shift in comfort, and sometimes even a moment of uncertainty. Children thrive on familiarity, and introducing someone new into their safe space can feel overwhelming.

Younger children may not fully understand why you’re leaving, while older ones might feel uneasy about being cared for by someone they don’t know well. Recognizing these emotions helps you respond with empathy rather than frustration. Instead of dismissing their worries, validate them. A simple reassurance that their feelings are okay can go a long way in building confidence.

Importance Of Education In 2026

Md Tousif — Sun, 21 Jun 2026 22:05:08 +0000

People think that once graduation is over, their studies are over. Most people are only able to complete graduation, while a few are also able to get a master’s degree or a PhD, and they think this is the end of learning and all that is required. However, this is not true. The reality is that learning is lifelong. The more you learn, the more you realize that there is a lot to learn in the future. Digital learning platforms have filled this gap by providing education to students who have completed college and still want to study more.

These people are also getting education. The government online platforms are running different skill advancement courses that students can take after college. Students who want to advance their skills while working on a job to get a promotion, and people who want to learn new skills after retirement, are all getting education nowadays through online platforms.

Skill-Building Courses
In 2026 and beyond, the workforce will not be analyzed on the basis of the degrees people hold but on the basis of the skills they have. Skills will be more important than degrees in the future. Today, the education system is mostly degree-based, and there are only a few universities that are providing skill-based education. Therefore, students who want to get employment are being helped by government online platforms in gaining skills that match their interests.

These lectures are building problem-solving skills, digital literacy, communication abilities, and technical knowledge in the future workforce and present students. Students can take these skill advancement courses while attending college. Trending skill courses such as data security, SEO, and other fields are being provided by the government through its digital learning platforms.

Access To Quality Education

Md Tousif — Sun, 21 Jun 2026 22:04:02 +0000

Everyone has heard that education is a fundamental right, but it is not true in the case of some students. These students are from marginalized societies, are differently abled, are from economically backward families, and also those whose families do not allow them to move from one place to another. All these people are getting the benefits through online education in 2026.

The students who are not able to move to get an education are getting lectures from the best educators in the world. They are getting the most famous books at home and also career guidance and skill advancement courses from home. Also, women who left their education due to marriage and various other reasons can continue it at home through digital learning platforms.

Hence, the digital learning platforms are helping the government in reducing educational inequalities and fulfilling its fundamental duty to provide equal education. The literacy rate of the country will be higher, and education will help the population become aware and get employment, thus providing them with a good standard of living.

Journey through the World Cup

Md Tousif — Sun, 21 Jun 2026 22:00:30 +0000

The journey through the World Cup has been a celebration of both rising stars and legendary figures. From young talents stepping onto the global stage with fearless energy to seasoned icons delivering record‑breaking performances, the tournament has reminded us why football is more than just a sport as it is a universal language of passion, unity, and inspiration.

This World Cup has highlighted the balance between tradition and transformation. While legends like Messi, Ronaldo, and Neuer bid farewell, new heroes such as Haaland, Yamal, Bouaddi, and Singh are carrying the torch forward. Their stories reflect resilience, ambition, and the power of dreams, ensuring that the spirit of football continues to thrive across generations.

Ultimately, the brilliance of the players, the grandeur of the stadiums, and the emotions of the fans combine to create a spectacle that transcends borders.

Who are the rising stars of this World Cup?
Players like Erling Haaland, Lamine Yamal, Ayyoub Bouaddi, and Sarpreet Singh are making headlines.

Which legendary players are competing in World Cup?
Lionel Messi, Cristiano Ronaldo, Manuel Neuer, and Kylian Mbappé are among the legends.

Has Lionel Messi set new record?
Yes, Messi broke Pelé’s record with 22 goal contributions across six tournaments.

Is Cristiano Ronaldo playing his final FIFA World Cup?
At 41, Ronaldo is competing in his sixth and likely last World Cup.

Which goalkeeper is retiring after FIFA World Cup 2026?
Manuel Neuer confirmed this will be his final international tournament.

Who is France’s top scorer in tournament history?
Kylian Mbappé surpassed Olivier Giroud and Just Fontaine, becoming France’s highest scorer.