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Blog speedtest.it
Guides on internet, security, networks and connectivity. 30 articles.
What a Speed Test Is Really For: A Guide to Usage and Impartiality
How a real speedtest works and why ISP results differ from independent tests. A practical guide to reading and using your speed test results correctly.
Cloud Remote vs Local Servers: The Real Battle Is Data Security
Cloud vs on-premise servers: a technical comparison of data security, costs, control, and scalability to help businesses choose the right solution.
Video on the Web: Why the WebM Format Is the Winning Choice
Why WebM outperforms MP4 for web video: better compression, broad browser compatibility, and a real impact on your site's loading performance.
Agentic AI: The Silent Revolution Transforming Work in 2025
Agentic AI is reshaping work in 2025: autonomous agents that handle complex tasks, how they differ from ChatGPT, and their real-world impact.
How to Choose a WiFi Router to Maximize Your Internet Speed
How to choose the right WiFi router: WiFi 6 and 6E standards, bandwidth, range, MU-MIMO, and practical tips to maximize speed at home or in the office.
Imagining the Future of Internet Connections with AI
Six AI models answer the same question: how will internet connections evolve in the future? A comparative experiment across leading language models.
SSL Certificates: What They Are, Why You Need Them, and How They Work
What SSL/TLS certificates are, how HTTPS and asymmetric encryption work, and why every website needs a valid certificate to protect its users.
Imagine the Invention of the Future
Six AI models imagine the invention that will change humanity's future: an experiment exploring the creativity and vision of today's language models.
Strong Passwords: Why They Really Matter and How Hard They Are to Crack
Why simple passwords are not enough: how brute-force attacks work, how long cracking takes, and how to create truly strong passwords to stay safe.
QR Codes: What They Are, What They Are Used For, and How to Create One in Seconds
What QR codes are, how they work, what they are used for, and how to generate one in seconds directly in your browser without any external app.
Fiber, ADSL, or Mobile: Which Internet Connection to Choose in 2025
Fiber, ADSL, or mobile: a comparison of speed, cost, coverage, and real-world use cases to help you pick the right internet connection in 2025.
Complete Guide: How a SpeedTest Works
How a speed test works: server selection, download measurement with parallel connections, latency under load, and bufferbloat explained clearly.
WireGuard or OpenVPN: An Analysis of the Pros and Cons
WireGuard vs OpenVPN: speed, security, configuration complexity, and use cases compared. Which VPN protocol should you choose for personal or business use?
What Are Docker and Docker Compose and Why Should You Use Them
Docker and Docker Compose explained without jargon: what containers are, how images work, and why they simplify development and deployment workflows.
Password Hashing: How It Works and Why It Matters for Security
How password hashing works: MD5, SHA-256, bcrypt, and Argon2 compared, plus salting, rainbow tables, and why choosing the right algorithm is critical.
WireGuard: The New Frontier of VPNs
WireGuard: the fastest and most modern VPN protocol. Under 4,000 lines of code, Linux kernel space, ChaCha20 encryption, and why it is replacing OpenVPN.
Installing a WireGuard Server on Debian 12: Step-by-Step Guide
Step-by-step guide to installing and configuring a WireGuard server on Debian 12: packages, key generation, peer configuration, and firewall setup.
Network Security: Firewalls, IDS, and IPS Explained
Firewalls, IDS, and IPS explained: what they are, how they work, and the differences between intrusion detection and prevention for network defense.
VPNs: How They Work and Why You Should Use One
How a VPN works: encrypted tunnels, WireGuard, OpenVPN, and IPsec protocols, and practical use cases for privacy and security on public networks.
Networking Fundamentals: What Are IP, TCP/IP, and Subnetting
Networking fundamentals: IP addresses, the TCP/IP stack, the difference between TCP and UDP, subnetting, and CIDR notation explained practically.
5G: The Secret Behind Low Latency
Why 5G achieves latency below 5ms: distributed architecture, edge computing, Massive MIMO, and beamforming explained with real-world performance numbers.
What Is 5G: A Complete Guide to the Fifth Generation of Mobile Networks
What 5G is: sub-6 GHz and mmWave frequencies, key differences from 4G, coverage across Italy in 2025, and when it actually makes sense to upgrade.
From 4G to 5G: A Technical Comparison
Technical comparison of 4G vs 5G: real-world speed, latency, architecture, Massive MIMO, beamforming, and when 4G is still the better practical choice.
Knowing Your IP Address: A Must in the Digital Age
What a public IP address is, how to find yours, what it reveals about your connection, and why knowing it matters for privacy and network diagnostics.
IPv6 and the Differences from IPv4: The Complete Guide
Differences between IPv4 and IPv6: address space, format, NAT, built-in security, and why the global migration to IPv6 is still progressing slowly.
Ping: A Complete Guide to Network Diagnostics and Latency Measurement
Ping measures network latency in milliseconds. How ICMP works, what causes high ping, how to interpret results and diagnose internet connection problems.
The Complete Guide to Speedtest.it: All Available Services and Tools
Speedtest.it offers much more than a speed test. Discover all tools: ping, traceroute, DNS lookup, port scan, IP check, and how to diagnose your connection.
Optimize Your Connection: Complete Guide to Speeding Up Your Internet
Slow internet? Practical strategies to diagnose the causes and speed up your connection: router settings, DNS, WiFi channel, ISP contract, and more tips.
EuLLM: The European Platform for Sovereign LLMs That Challenges ChatGPT
EuLLM distills 70B models into 7B specialists that stay in Europe. Data, models and code 100% EU-based, GDPR-compliant and ready for the EU AI Act.
RAG Enterprise: Query Your Documents with AI Without Sending Them to the Cloud
I3K RAG Enterprise is the self-hosted, open-source RAG platform for querying enterprise documents with AI. 100% on-premise, EU sovereignty, air-gapped ready.