How to optimize images for use on websites to improve speed and SEO
Learn how to optimize images for the web: formats, compression, SEO, plugins, and tricks to speed up your site and improve its ranking.
Internet and Networks
How the Internet arrived in Spain and its impact on our lives
Discover how the first internet connection in Spain was made and how the network has transformed society to become a key infrastructure.
Cloudflare's latest global outage leaves half the internet in jeopardy
A massive Cloudflare outage has left websites, banks, games, and online stores without service in Spain and Europe. Learn about the extent and reasons for the outage.
Configure DNS on Android step by step
Learn how to configure DNS on Android step by step to gain speed, privacy, and security when browsing from your mobile phone or tablet.
Share files securely with SMB over QUIC
Learn how to use SMB over QUIC to securely share files over the Internet without a VPN, with TLS encryption, access control, and high performance.
What are Gaming VPNs and how do they affect your online games?
Discover what a Gaming VPN is, when it improves your online experience, how it affects ping, and what you should look for to choose the best option.
Persistent Memory Storage (PMEM): What it is and how to use it
Discover what persistent memory (PMEM) is, how it works, and how it differs from DRAM, SSD, and NVMe to speed up your systems.
What is the router port used for and how to get the most out of it
Discover what the router port is for, how to open it safely, and how to take advantage of LAN, WAN, and USB to improve your home network.
Differences between TCP and UDP ports and when to use each one
Discover the differences between TCP and UDP ports, their real uses, advantages, risks, and how to choose the right protocol in each case.
Types of military satellites and what they are used for
Types of military satellites, missions, key technologies, and market trends. Real-world examples and why they are crucial today.
DGT passwords revealed on Telecinco News: context, flaws and lessons learned
Telecinco displayed DGT credentials on screen: context, risks, and what it means for your data. Discover the details now.
Countries that allow online voting: map, models and debates
Discover where you can vote online, which countries use it, its advantages and risks, and the situation in Spain. A clear and up-to-date guide.
Why your internet doesn't speed up when you increase your plan, and how to find out.
You pay for more speed and get the same. Discover bottlenecks in your router, cables, Wi-Fi, and device, and how to fix them quickly.
How to update your router's firmware: a complete, risk-free guide
Guide to updating your router's firmware: security, brand-specific methods, and tips. Avoid errors and keep your network up to date.
How to know if you can replace your ISP's router with a third-party router
Should you replace your ISP's router with a third-party one? Requirements, ONT, VLAN, and PPPoE/IPoE. Pros and cons, realistic options, and tips for making the right choice.
DAZN and ACE shut down Photocall TV: the final blow to illegal streaming
DAZN and ACE shut down Photocall TV after investigation in Spain. Figures, those responsible, and what to watch legally now.
What is IoT Edge and how to leverage Azure IoT Edge in depth
What is IoT Edge and how does Azure IoT Edge work: advantages, security, AI and key use cases explained clearly.
How to export MQTT data to Excel: reliable methods and tools
Convert MQTT data to Excel using Python, MQTT Explorer, and Azure IoT. Clear guides, uses, and solutions.
How to use VirtualHere to share USB drives over a network: a complete guide
Learn how to use VirtualHere to share USB drives over a network. Guide with My Cloud, Windows, macOS, Linux, and secure alternatives.
How to protect older people from the risks of the Internet
A guide to protecting seniors online: fraud, passwords, mobile phones, privacy, and support from INCIBE. Key tips and tools.
How to block suspicious connections from CMD
Detect and block suspicious connections from CMD using netstat, netsh, PowerShell, and UFW. A practical, secure, and step-by-step guide.
How to fix WiFi problems on Smart TVs: a complete and practical guide
Fix your Smart TV's WiFi: causes, bands, QoS, DNS, cable, and updates. A clear and effective guide to restoring your connection.
Cloudflare outage causes global disruptions to key websites and apps
A Cloudflare outage took down X, ChatGPT, and other websites. We'll tell you the causes, timeline, and impact in Spain, and what to do in case of these outages.
What is Amazon Leo: Amazon's LEO network that rivals Starlink
Amazon Leo: Amazon's LEO satellite internet. Antennas, speeds, rollout, and partnerships. How does it compete with Starlink? Find out.
How to identify and fix network policies that block RDP in Windows
Guide to detecting and fixing policies and firewalls that block RDP in Windows. Clear steps and commands to restore remote access.
What is DHCP leasing in Windows and how to manage it thoroughly
DHCP in Windows: what it is, how DORA and T1/T2 work, ideal timings, and ipconfig commands. A clear guide with tips and best practices.
How to find your public and private IP address: a complete guide to understanding and checking it
Learn how to view your public and private IP addresses, their differences, IP ranges, NAT, and CGNAT. A clear guide for Windows, macOS, Linux, Android, and iPhone.
How to make a numbered list in HTML start with a specific number
Learn how to start numbered lists in HTML at a specific number using `start`, `value`, and `reversed`, and customize them with CSS. Complete guide with examples.
How mirrors affect WiFi signal: causes, problems and solutions
Why mirrors weaken your WiFi and how to position your router for better coverage, less interference, and more stability.
What is DDNS: definition, how it works, differences and security
What is DDNS, how does it work, differences with DNS, advantages, risks and basic configuration explained clearly.
The best search engines for the Deep Web and how to use them safely
Best search engines for the Deep Web and Dark Web. Differences, legality, risks, and tips for browsing privately and securely with Tor.
What is EU Regulation 1309 on Gigabit Infrastructure?
Complete guide to EU Regulation 1309: access, permits, fiber in buildings, and deadlines. Learn how it accelerates gigabit connectivity.
What is VoWiFi and which mobile phones are compatible in Spain?
VoWiFi explained: how it works, compatible operators and phones by operator in Spain. Activate it and make calls even without coverage.
Uses you didn't know about for your router's USB port: a complete guide
Get the most out of your router's USB port: private cloud, Wi-Fi printer, 4G backup, copies, and essential tips and tricks.
More secure encryption and hashing algorithms: a complete guide
Which encryption and hashing algorithms to use today, which to avoid, and how to choose based on your needs. OWASP recommendations and best practices.
Cloudflare escalates its confrontation with LaLiga and turns to Trump
Cloudflare sues the US over IP blocking in Spain. LaLiga responds. Commercial and European implications at stake.
The V16 beacon's SIM card won't work in your mobile phone: how and why it's locked.
Discover why the V16 beacon SIM won't work in your mobile phone: soldered chip, private APN, and NB-IoT. Avoid errors and comply with regulations.
Bluetooth 6.2 in depth: ultra-low latency, advanced security, and OTA testing
Bluetooth 6.2 in detail: up to 20x lower latency, enhanced safe range, LE Audio over USB, and OTA testing. All explained clearly.
Telefónica is preparing a blackout shield to reinforce its networks
A multi-million dollar plan to equip the mobile and fixed-line network with batteries and generators. The goal: to maintain service up to 24 hours and prioritize critical areas.
How to find and change the DNS used in Windows 11: methods, commands and tricks
Discover which DNS servers Windows 11 uses, how to change them, and how to measure their performance. This guide includes steps, commands, and tips for improved speed and privacy.
Setting up Wi-Fi networks with usage profiles: a complete and practical guide
Configure Wi-Fi networks with usage profiles in SCCM, Intune, and Android. Security, apps, and tips for a reliable connection.
How to tell if someone is stealing your WiFi by looking at the router's LEDs
Find out if someone is stealing your Wi-Fi by checking your router's LEDs and learn how to stop it. Clear methods, useful apps, and key security settings.
Ku-band for data: how it works, frequencies, and applications
What is the Ku band for data: frequencies by region, pros and limitations due to rain, antenna sizes and equipment such as LNBs and VSATs.
Why should you turn off WiFi before sleeping? Myths, benefits, and sensible habits
Should you turn off Wi-Fi while sleeping? Health, savings, battery life, and security, with practical tips for an uninterrupted night.
What to do if Windows assigns an APIPA IP: complete guide and solutions
Is Windows giving you IP address 169.254? Discover what APIPA is, why it happens, and how to fix it step by step in Windows and Linux.
Atomic clocks: what they are and how they synchronize the time on your devices
How atomic clocks work and how they synchronize GPS, cell phones, and networks with extraordinary precision.
Movistar prepares its Smart WiFi 7 router with XGS-PON and 10 Gbps
Movistar is finalizing Smart WiFi 7: dual GPON/XGS-PON optics, 10G port, and Wi‑Fi 7 without 6 GHz for new rates of up to 10 Gbps.
Broadcom debuts Wi-Fi 8 with four chips and a focus on the edge
Broadcom launches its first Wi-Fi 8 chips: models, improvements, and testing. Plus, a partnership with OpenAI for AI chips. Find out what's new.
How to assign a static IP address in Linux: a complete guide by distro and tool
Learn how to set a static IP address on Linux: Debian/Ubuntu, Netplan, Red Hat, Arch, nmcli, and more. Clear methods and essential commands for making it persistent.
Slow or unstable Wi-Fi 6 on Windows 11: Complete guide to causes and solutions
Is Wi-Fi 6 slow or dropping out on Windows 11? Real-world causes and proven solutions to restore speed and stability.