I never publish my personal email address on the Internet. However, most of the email spam are aiming directly to that inbox, not a general one. The company is also new, just more than one year, but receiving a lot of spam recently. Email spam statistics In the last three months, the total incoming messages … Read more
I am very pleased to introduce a new premium add-on, which is used mostly in every website: WPForms – a form script. Yes, a WordPress plugin for creating complicated, responsive forms, yet easy to use. A form is not just a form! With nowadays usage, any part of a website should be: Responsive: mobile friendly. … Read more
The need of images optimization Obviously, images are important to any website. An image can say more than a thousand words. In SEO on-page technique, the alternative text of each image plays a vital role. However, many people still upload large pictures that leads to slow loading websites. A 1 second delay in page response can result in … Read more
A core plugin contains all custom functionalities serving for back-end operation. The front end display is remaining in the theme code. Recently, I have been working on some projects which the owners want to have some specific data. That requires me to use custom post types. So, how to implement it? Traditional method Usually, developers … Read more
Quick question: how to do child theme style file loading correctly? If you are searching on WordPress, you will mostly get answers of using wp_enqueue_scripts. If you need to load parent styles too, as I usually do, you will need to call wp_enqueue_style twice, once for parent and once for child theme styles. [div class=”notes”] Pay … Read more
Divmob is a Vietnamese startup, focusing on game development. Established in 2012, with supporting from Google team, Divmob’s games earn high reviews on Google Play with millions of downloads. First time when I met Luyen, the founder of Divmob, he was still studying in France. At that time, he already wanted to produce mobile apps. … Read more
Shortcode in WordPress gives both programmers and users flexibilities. Combining shortcodes and widgets, coders can have less code in their theme, plugin. Calling shortcodes with different parameters helps users using code easier. However, there are some issues that I have seen many people facing to. 1. Shortcodes by default do not run in text widgets. … Read more
CDN, in short, stands for a content distribution network. It is a group of servers, located in multiple locations over the world. When end-users connect to a website, they can access to the closest server geographically with the shortest path. By that way, they can receive content quicker. Why should you use CDN? KeyCDN has … Read more
Seasonal malicious emails. This time, every year is the high time for spam. There are many good promotions for Christmas and New Year events. Also, there are many malicious emails delivered into inboxes. Unfortunately, not all people know about this problem. That means they can click on the included links, open attached files, and be … Read more
We just finished upgrading PHP for a client from version 5.3 to 5.6. Even they had sent out notifications to their customers in advanced, multiple websites were not working after upgrading. The reason is that of outdated source code, which is incompatible with PHP version 5.6. There are reasons for PHP to change their core functions: … Read more
Domain name registration would be the first step, which an entrepreneur should do for starting an online business. It is a unique address that entrepreneur should reserve on the Internet. What is an Internet domain name & domain name registration Following the definition from Wikipedia, a domain name is an identification string that defines a … Read more
Working with entrepreneurs gives me many lessons. A lot of questions have been raised. That makes me think about a fundamental course for entrepreneurs about the services for websites of their business, related to their online brands. There is some basic information about those services that entrepreneurs should know. It would help them to choose … Read more
Back to April 2013, the latest WordPress major release was 3.5. When I checked the WordPress statistics, there were only 28.4% websites using WordPress 3.5. That meaned 72.6% websites contained WordPress security holes without patched, not counting to errors in themes and plugins. That was also equal to 46 million WordPress-websites in danger. I asked … Read more
I had a quick chat yesterday with a new friend, who has been running a web design company for more than ten years. Email is very important to him and his customers. At first, he had many troubles with spam. Then he moved to Google platform, and he is happy now. Google acquired Postini in 2007 … Read more
In March, I wrote a blog post explaining why we offer subscription model for web design service, instead of one-time payment as other firms. I focused on security aspect in that post. Now, another aspect: user experiences – UX. When mentioning to user experiences, I need to say that I am not a UX expert. … Read more
At OsloNAP, we do web development. However, we are different. We believe that a website just likes your business, it is not finished after the first stage. As an entrepreneur, you have started your company and kept working and improving the business performance. You cannot predict what is happening in the future. The new business … Read more
Recently, a new vulnerability in glibc security has been published. Even it is happening in a system library, hacker can use end-user application to crack servers. There is a system library, named glibc, widely used in Linux distributions such as Redhat / CentOS, Debian, Ubuntu. Two functions, gethostbyname and gethostbyname2, in that library have vulnerabilities that … Read more