Is WordPress slow?

Is WordPress slow?

Starting from WordPress 3.8, the system will load the Google Open sans font style, causing us to It is very slow to open the homepage and backend of our website when logging into the backend of your own account. It takes a long time to load before you can barely open it. At the beginning, many users also suspected that their virtual host or VPS was unstable. In fact, this is mainly because Caused by WORDPRESS loading Google Open sans fonts.

1, Cancel the loading of Google open sans fonts

Some themes have a front desk, but generally there is no front desk. Only when we log in to the account, the front desk or background opens slowly, so It is not conducive to our access and maintenance, so we can install a plug-in "Disable Google Fonts", download, install and activate this plug-in to solve the problem.

Second, clear unnecessary header loading

When we see this, we can go to our WP website source code to see if we see a lot of JS in the header position and CSS loading items, as many as a dozen items, and then we can look at the source code of themes like the big front-end. There is basically no redundant loading in the header, so their theme loading and opening speeds are very fast. Therefore, we need to clear unnecessary JS loading. This is also mentioned in "WordPress Speed-Up Optimization: Cleaning Up Excess Scripts in the HEAD Header", but the research is not detailed enough. I will study the JS shielding function of the large front-end theme later when I have time. .

Third, delete unnecessary plug-ins

Theoretically, it is possible to do without plug-ins. When helping netizens solve problems, I saw that his website uses Alibaba Cloud computer room, so it makes sense. It is said that the speed should be relatively good, but the opening speed is not as fast as the computer room in the eastern United States. After logging into the backend of its website, I found that it uses nearly 20 plug-ins and 1G memory of the VPS. The memory has occupied 70%. A newly established website has such a load from the beginning. , what should I do if there is traffic in the future?

Fourth, whether to use a commercial theme

I personally like to use a simple theme when using WORDPRESS, and then slowly modify it to the user experience effect I like. I don’t like to use a theme that is too Complex, especially those overseas themes with particularly complex backends. Such themes are not safe on the one hand, and the loading speed is very slow on the other. After all, to achieve such gorgeous effects, a lot of JS and CSS are needed, and even front-end frameworks are embedded. . My personal understanding is that the website does not need to be too complex and gorgeous, simple and light, the main thing is that the content is meaningful and attractive enough.

Fifth, database cache file burden

By default, when we write articles in the background, they will be automatically saved as revised versions after a period of time. Such revised versions will be automatically saved to The data center, even if we can't see it in the foreground, will have many revisions when it takes dozens of minutes or even 1-2 hours to update an article on a blog. This is why many people find that the IDs are discontinuous. , so that when we have 1,000 articles, there may be 3,000 recorded articles, and even thousands or tens of thousands of records will be generated after a long period of operation (this is why many people say that the initial speed is okay, but the speed will become worse and worse in the future. ). We need to delete the revision and not allow the revision to be added to the data center.

Solution: Add the "define('WP_POST_REVISIONS', false);" code in the wp-config.php file.

Sixth, check whether there are spam comments

kept sending me alarm emails saying that the machine’s CPU exceeded the standard by 400%, and the website on it opened very slowly. I began to think that I was being hacked again. People attack, and then look through the logs and background, dozens of comments are added every second, even though the comment content will not be displayed in the foreground, it will be loaded into the database, thus increasing the load on the entire website and machine. We need to use tools to block and verify spam comments, especially comments sent by software. We need to deal with them.

For example, we need to activate Akismet and use similar functions/plug-ins that require a verification code before commenting, making it more difficult for the software to send comments in bulk.

Seventh, optimize image cache

Especially due to the current demand for flat experience, we like to use more image content. For example, a large number of images are used in the tutorials of Lao Zuo's blog, but loading Pictures are relatively slow. We can use plug-ins or JS effects similar to picture buffering. For example, we can use jQuery lazy load plugin to solve picture buffering, and the user experience is better. Pictures are loaded from top to bottom. There is a Gradient effect.

At the same time, we also need to use the WP-Super-Cache plug-in, so that the content can be cached. Especially when our WP uses pseudo-static, the larger the data, the larger the CPU resources occupied, even There are many web hosting providers that hate users using WP programs. (Of course, I also hate DEDECMS, which has poor security)

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