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Welcome to marcoderspace

This is a space I created for curious minds.

Engineers. Builders. Hackers. Researchers.
People drawn to artificial intelligence, automation, optimization, large-scale architectures, threat intelligence, cyber security, and software engineering as a craft, not just a profession.

If any of that resonates with you, you are in the right place.

Marcoderspace is where I document the work that matters to me. Here I publish educational materials, technical breakdowns, experiments, notes, and the systems I build along the way. Some ideas are refined. Others are still evolving. All of them are real.

You will not find empty theory or recycled trends here. What you will find is practical thinking, architectural decisions, trade-offs, failures, iterations, and lessons learned from building actual systems.

This is an open lab, but also a personal one. A working space where curiosity is welcome, questions are encouraged, and complexity is explored rather than avoided.

I do not claim to have final answers. I care about understanding systems deeply, designing them with intention, and improving them continuously.

If you enjoy exploring how things work, and how they can work better, you will feel at home here.

Welcome to the lab.
Let’s build.

From this point forward, everything on this site is written in lowercase by design.

Curious about the author? Visit the about page.

Marko Dabovic

visitor env

lesson 1 — what the internet already knows about you

congratulations.
you have just completed your first small lesson about the internet.

when you open a website, a surprising amount of information becomes visible automatically.

nothing was hacked.
nothing special was done.
this is simply how the internet works.

the data shown above comes from your connection metadata.

here is what each field means.

ip address
your ip address is the public identifier of your internet connection.
it is assigned by your internet provider and allows computers on the internet to send data back to you.

think of it as the temporary return address for your device on the network.

country / region / city
based on your ip address, databases can estimate your geographic location.
this is called ip geolocation.

it is usually approximate, but often accurate enough to identify the city or region.

user agent
your browser automatically tells websites what software you are using.

this includes:

browser type
operating system
sometimes device information

websites use this to render pages correctly.

screen resolution
this helps websites adapt layout and design to your device.

it is also one of many signals that can contribute to browser fingerprinting.

local time and utc time
your system clock and timezone can also reveal information about your environment.

lesson 2 — every connection leaves traces

every action on the internet produces logs and metadata.

servers routinely record things like:

ip address
request time
requested resource
browser information

this is not necessarily malicious.
it is how networks function, how systems debug problems, and how security incidents are investigated.

however, it also means something important.

nothing online is truly invisible.

even simple interactions leave technical traces somewhere in the infrastructure.

a small cybersecurity reminder

understanding this is one of the first steps toward digital awareness.

be mindful of:

the websites you trust
the data you share
the systems you interact with

most security problems are not caused by advanced hacking.

they are caused by people not realizing how much information is already visible.

curiosity and awareness are your best tools.

welcome to marcoderspace

if this sparked your curiosity, you are already thinking like an engineer.

here we explore how systems work, why they behave the way they do, and how they can be improved.

consider this your first small step into networking and cybersecurity.

welcome to the lab.

# if you are eager to learn, this is the place for you <3

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hint:

- marcoderspace labs are the core of this learning space → /labs

- to unlock full access, follow me on substack → /join

- before you continue, there is one more stop you may want to visit

> you are here

│

├─ /gate 1 // lab access

│ ├─ learn one more thing {magic-wand}

│ └─ check whether you have lab access (go-to[*] /gate 1 page)

│

├─ if access == granted :)

│ ├─ continue exploring the lab

│ ├─ follow updates on substack

│ └─ read more technical material on g4g

│

└─ if access == not granted :(

├─ follow me on substack

├─ wait for updates by email

└─ a gmail account is recommended for lab materials hosted on google drive ;)

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once again — welcome to marcoderspace.

this is my personal lab on the internet / cyber lab.

a place where i document ideas, experiments,

systems, notes, and things i learn along the way.

if you enjoy this kind of thinking and exploration,

you are always welcome here.

you can also find me elsewhere:

markodabovic.com → kind of cv & my first home in cyberspace

github → code and experiments

linkedin → professional updates

substack → longer writing and thoughts

researchgate → my academic corner of the internet

and if you are interested in working together,

feel free to reach out through the consulting section 📞 (it is currently being developed — thanks for your patience)

writing highlights

Ask ChatGPT Who You Are – My very first post! 💡✨ Hello everyone, and thank you for being here.

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