DEV Community: 7assan Osama

Build a Telegram Bot to Track Website Changes in Real-Time (Python Guide)

7assan Osama — Mon, 27 Apr 2026 13:11:04 +0000

Build a Telegram Bot to Track Website Changes in Real-Time (Python Guide)

Learn how to create a Telegram bot using Python to monitor website changes, detect updates, and send instant alerts automatically.

What This Bot Does

This bot allows users to submit any URL. It then:

Fetches the page content
Stores a snapshot of the page
Periodically checks for updates
Sends a notification if a change is detected

This is useful for:

Tracking product prices
Monitoring availability
Following competitor updates
Detecting content changes

Live Demo

You can try the bot here:

👉 https://t.me/trackly2027_bot

Start the bot, send a link, and it will begin monitoring automatically.

Tech Stack

Python
python-telegram-bot
SQLite or PostgreSQL
Requests / BeautifulSoup
Threading or async processing

System Architecture

1. Telegram Bot Layer

Handles user interaction:

Receiving links
Sending responses
Managing commands

2. Database Layer

Stores:

User IDs
URLs
Last known content or hash

3. Fetching Engine

Responsible for:

Sending HTTP requests
Extracting relevant content
Preparing data for comparison

4. Monitoring Worker

Runs in the background:

Iterates through stored links
Detects changes
Sends alerts

Change Detection Strategy

Instead of comparing raw HTML, a more efficient method is hashing the content.

import hashlib

def generate_hash(content):
    return hashlib.md5(content.encode()).hexdigest()

If the hash changes, the page content has changed.

Advantages:

Faster comparisons
Lower memory usage
Reduced false positives

Background Processing

Running everything synchronously will not scale. Use background workers.

Example using threading:

import threading

def monitor_links():
    while True:
        check_all_links()

threading.Thread(target=monitor_links).start()

For production systems, consider:

Async frameworks
Task queues
Scheduled jobs

Common Challenges

1. Websites Blocking Bots

Some websites restrict automated requests.

Solutions:

Add request headers
Use sessions
Respect rate limits

2. False Positives

Dynamic content like ads or timestamps may trigger unnecessary alerts.

Solutions:

Extract only meaningful content
Clean HTML before processing

3. Scalability

Monitoring many links requires efficient handling.

Solutions:

Queue systems
Adjustable intervals
Distributed workers

Deployment Options

You can deploy this bot using:

Railway
VPS
Amazon Web Services

Make sure:

The bot runs continuously
Your database is persistent

SEO Keywords Targeted

Telegram bot Python
Website change detection bot
Monitor website changes Python
Python automation bot
Track website updates automatically

Tags (for Dev.to)

telegram, python, webscraping, automation, bots, backend, programming, opensource

Conclusion

Building a Telegram bot for monitoring website changes is a practical project that combines automation, backend engineering, and real-world usability.

Publishing a live version, like this bot, adds real value to your project and increases its impact and visibility.

Is Free Hosting Really Free?

7assan Osama — Thu, 19 Mar 2026 21:29:13 +0000

Is Free Hosting Really Free?

You’ve probably heard about free hosting before…
And maybe you even considered using it to save some money.

But here’s the real question:

Is free hosting actually free?
Or are there things companies don’t tell you?

In this article, I’ll walk you through the full truth about free hosting—
when it makes sense to use it…
and when it might be the worst decision you can make for your website.

⸻

What is Free Hosting?

Simply put…

Free hosting is a service that allows you to publish your website online
without paying a single dollar.

But in reality…

Most providers offer it as a shared server.

That means a single server hosts dozens, hundreds,
or even thousands of websites at the same time.

And that’s the first reason why free hosting comes with so many issues.

Let’s start with one of the most annoying ones…

⸻

Ads

Most free hosting providers place ads on your website.

So when a visitor opens your site…
they’ll also see ads from the hosting company.

In many cases,
there’s even a visible banner saying that your site is hosted on a free plan.

This reduces user trust… significantly.

And that’s not a small issue.

It’s a deal breaker.

On top of that, ads make your website look completely unprofessional.

⸻

Performance & Speed

Let’s be honest.

Since the server hosts many websites…

Resources are shared between all of them.

So if other websites on the same server
are consuming a lot of resources…

your website will be directly affected.

And don’t forget—
those resources are already limited.

In most cases, you’ll notice that your website is very slow.

If your site is built using modern technologies,
there’s a high chance it won’t even run properly.

Even worse—
if your site gets a small spike in traffic…

it might crash completely.

⸻

Security

Security in free hosting is usually weak.

Because these companies don’t invest much in protection.

This means you could:
• Get hacked
• Lose your website files
• Or even find your website suddenly gone

And it gets worse…

Technical support is often limited—or nonexistent.

⸻

Domain

When using free hosting…

You usually don’t get a professional domain like:

mysite.com

Instead, you get something like:

mysite.freehostingcompany.com

This looks unprofessional and also:
• Makes marketing harder
• Reduces user trust

And don’t say:
“I’ll just buy a domain and save on hosting” 😹

⸻

The Marketing Trap

Many free hosting companies use this as a marketing strategy.

Here’s how it works:

You start with the free plan…

Then later, you need essential features like:
• A custom domain
• Better performance
• More storage

At that point, they tell you:

Upgrade to a paid plan.

And over time…

You get too comfortable (or lazy) to migrate your site elsewhere,
so you end up paying them anyway.

In the process,
you might miss out on better and cheaper alternatives—
just because staying feels easier.

⸻

So… Is It Ever Useful?

Actually—yes.

Free hosting can be useful if you:
• Are learning to code
• Want to test something quickly
• Build small practice projects
• Create a quick prototype

But it’s not suitable for a real project or production website.

⸻

Conclusion

Free hosting can be helpful…

But only within limits.

If you’re learning or experimenting,
it’s a good option.

But if you’re building a real website or business…

Paid hosting is almost always the better choice.

Because you’re not just paying for a server—
you’re paying for:
• Speed
• Security
• Support
• Professionalism
• And most importantly… user trust

⸻

Your Turn

Have you ever tried free hosting before?
What was the biggest problem you faced? 👇

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7assan Osama — Sun, 15 Mar 2026 23:49:38 +0000