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Preventing Japanese Keyword Hack on WordPress: A Simple Guide

Read Time: 6 minutes
A person uses a laptop to prevent Japanese keyword hack attacks by monitoring spam activities.

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In today’s digital age, protecting your website from potential hackers and malicious attacks is essential. The Japanese keyword hack is an attack troubling website owners, particularly those using WordPress. In this comprehensive guide, we will explore what the Japanese keyword hack is, its impact on your website, and, most importantly, how to prevent it. By following our simple steps, you can secure your WordPress site and ensure a safe online presence for your business.

What is the Japanese Keyword Hack?

The Japanese keyword hack is a black-hat SEO technique hackers use to manipulate search engine results. They target vulnerable websites, especially WordPress sites, and inject spammy content and links, usually in Japanese, to promote their websites or affiliate products. This content is not visible to the site owner or visitors, making it difficult to detect.

The primary objective of the hackers is to leverage the compromised website’s reputation and domain authority to improve its search engine rankings. As a result, your website may experience a sudden influx of low-quality, spammy backlinks and unexpected drops in search engine rankings.

How Does the Japanese Keyword Hack Affect Your Website?

The Japanese keyword hack can have a significant negative impact on your website in several ways:

  1. Loss of search engine rankings: As search engines like Google detect spammy content and backlinks on your site, they may penalize your website, resulting in a decline in search rankings and organic traffic.
  2. Damage to your online reputation: When your site is compromised, it may be flagged by search engines as containing malware or spam, leading to a loss of credibility and trust among your visitors.
  3. Financial loss: Decreased search engine rankings and organic traffic can ultimately result in your business’s revenue loss.
  4. Time-consuming recovery process: Recovering from a Japanese keyword hack can be time-consuming and challenging, as you need to clean up the spammy content and backlinks, restore your website to a safe state, and regain the trust of search engines and visitors.

Preventing Japanese Keyword Hack on WordPress: A Simple Guide

To protect your WordPress site from the Japanese keyword hack, follow these simple steps:

1. Keep Your WordPress Installation and Plugins Updated

One of the primary reasons hackers target WordPress sites is because of outdated installations and plugins. To prevent your site from becoming vulnerable to attacks, ensure you use the latest WordPress version and all your plugins.

To update your WordPress installation:

  • Log in to your WordPress dashboard.
  • Navigate to ‘Dashboard’ > ‘Updates.’
  • If an update is available, follow the on-screen instructions to complete the process.

To update your plugins:

  • Go to ‘Plugins’ > ‘Installed Plugins’ in your WordPress dashboard.
  • If an update is available for any of your plugins, click ‘Update Now’ to initiate the update.

2. Use Strong Passwords and Two-Factor Authentication

Using strong, unique passwords and enabling two-factor authentication (2FA) for your WordPress login can significantly reduce the chances of unauthorized access to your site. Ensure that you and all other users on your site follow best practices for creating strong passwords, such as using a combination of uppercase and lowercase letters, numbers, and special characters.

To enable 2FA on your WordPress site, you can use plugins like Wordfence or Google Authenticator.

3. Choose a Secure Hosting Provider

Your hosting provider plays a crucial role in your website’s security. Opt for a reputable hosting provider with advanced security features, such as malware scanning, firewalls, and automatic backups. Regularly monitor your hosting account to ensure no unauthorized changes or intrusions.

4. Install a Security Plugin

A security plugin can strengthen your WordPress site’s defenses against the Japanese keyword hack and other potential threats. Some popular security plugins include Wordfence, Sucuri, and iThemes Security. These plugins provide features such as real-time monitoring, malware scanning, and firewall protection.

5. Regularly Monitor and Audit Your Site

Regularly auditing your WordPress site can help you detect any suspicious activity, unauthorized access, or changes to your site’s content. You can use plugins like WP Security Audit Log and Activity Log to track all site activities, including logins, content updates, and plugin installations.

6. Limit User Access and Privileges

Limiting user access and privileges on your WordPress site can help prevent unauthorized modifications to your site’s content and settings. Assign appropriate user roles and permissions based on the individual’s responsibilities. For example, you can assign the ‘Editor’ role to someone responsible for content updates, while ‘Administrator’ access should be reserved for trusted individuals who manage the site.

7. Implement Regular Backups

Regular backups of your website can be a lifesaver in case of a Japanese keyword hack or any other security breach. Ensure you have a reliable backup solution, and perform regular backups of your entire site, including the database, files, and media. You can use plugins like UpdraftPlus, BackupBuddy, or VaultPress to automate the backup process.

8. Scan for Malware and Spammy Content

Regularly scan your website for malware, spammy content, and suspicious links using security plugins or online tools like Sucuri SiteCheck or Google Search Console. Remove any detected spammy content and address security issues promptly to maintain a clean and safe website.


Protecting your WordPress site from the Japanese keyword hack is crucial for maintaining your online reputation and search engine rankings. Following our simple guide, you can prevent this common SEO spam tactic and ensure a safe and secure website for your business. Regular monitoring, updates, backups, and reputable security plugins can go a long way in safeguarding your site from potential threats.

Frequently Asked Questions (FAQs)

How do I know if my WordPress site has been hacked with the Japanese keyword hack?

Some common signs of the Japanese keyword hack include:

1. A sudden decrease in search engine rankings and organic traffic.
2. The appearance of Japanese characters or spammy content in your site’s search engine results.
3. Unexpected and spammy backlinks to your site.

To confirm the presence of the Japanese keyword hack, you can use Google Search Console or online tools like Sucuri SiteCheck to scan your site for spammy content and security issues.

How can I clean my site after a Japanese keyword hack?

To clean your site after a Japanese keyword hack, follow these steps:

1. Identify and remove all spammy content, links, and injected code.
2. Update your WordPress installation, plugins, and themes.
3. Change all user passwords and enable two-factor authentication.
4. Perform a full website backup.
5. Request a reconsideration from Google or other search engines to restore your site’s rankings.

Can I prevent the Japanese keyword hack without using plugins?

While plugins can significantly improve your site’s security, you can still take some steps to prevent the Japanese keyword hack without using plugins:

1. Keep your WordPress installation, plugins, and themes updated.
2. Use strong passwords and enable two-factor authentication.
3. Choose a secure hosting provider.
4. Limit user access and privileges.
5. Monitor your site for unauthorized access and changes.

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