Why Do Changes Made to a Website Not Appear Immediately? Cache Problems and Solutions
We explain layer by layer why changes made to a website do not appear immediately: browser, server and CDN cache, and the versioning of CSS/JS files.
Teknik Bilgi
The Website Looks Broken on the Phone but Normal on the Computer: Why?
If a website looks fine on the computer but broken on the phone, the reason is a lack of responsive design. We explain the symptoms, the causes and the solution with a fluid layout.
The Website Opens Very Slowly: Causes and Solution Methods
Why does a website open slowly? Large images, heavy JS/CSS, slow TTFB and cache problems; methods for speeding it up through measurement, optimization and a CDN.
Why Does the Contact Form on a Website Not Send Email?
Does the contact form say "sent" but no email arrives? A permanent solution with closed SMTP ports, missing SPF/DKIM/DMARC, and an HTTP email API.
Why Is User Interface Design Important in PC Applications?
The importance of user interface design in PC applications: fewer errors and faster, more efficient use through simplicity, consistency and readability.
How Should Data Security Be Ensured in PC Applications?
Data security in PC applications: hashing of passwords, role-based authorization, the principle of least privilege, regular backup and operation logging.
What Should Be Considered in Database Design?
The fundamentals of designing a fast, secure and sustainable database with normalization, primary/foreign keys, correct data types and indexes.
Why Is Data Backup Important in Databases?
The importance of database backup; protecting data safely with full/incremental backup, automatic backup, the 3-2-1 approach and restore testing.
How to Select a Servo Motor? Calculation Steps
How are inertia, torque and speed calculated in servo motor selection? Reflected inertia, RMS torque, encoder and brake selection are explained step by step.
Servo Motor vs. Stepper Motor: What Is the Difference?
Differences between servo and stepper motors: closed- and open-loop control, torque-speed behavior, precision, cost and application selection are compared.
What Is Profinet? Communication Classes and Setup
What is Profinet and how does it work? RT and IRT communication classes, GSDML files, device naming, topology and cabling rules are explained with practical notes.
What Is a PLC? Working Principle and Selection Criteria
What is a PLC, how does it work and what components does it consist of? The scan cycle, I/O structure and PLC selection criteria are explained from an engineering perspective.