The DNS_PROBE_FINISHED_NXDOMAIN error is a common problem encountered by Internet users when trying to access a website. This anomaly indicates that the domain name system has failed to resolve the address of the site in question. This guide aims to help users and site administrators better understand this error, its causes and how to resolve it effectively.
Fixing this issue is crucial to ensure a smooth and uninterrupted browsing experience for web users. In addition, website managers must resolve the situation quickly to avoid traffic loss and negative SEO impacts. In this article, we will explore the common causes of the DNS_PROBE_FINISHED_NXDOMAIN anomaly and propose solutions to remedy it.
Understanding the DNS_PROBE_FINISHED_NXDOMAIN anomaly
Definition of DNS
DNS, or Domain Name System, is an essential service that converts human-readable domain names into IP addresses, which are used to locate the servers hosting websites. By simplifying navigation, DNS makes it easier to access online resources.
Common causes of the DNS_PROBE_FINISHED_NXDOMAIN anomaly
There are several possible causes of the DNS_PROBE_FINISHED_NXDOMAIN anomaly. Common causes include:
- DNS configuration errors on the domain or server side
- An outdated or corrupted DNS cache on the user's device
- Network connection problems, including temporary outages
- Inaccessible or overloaded DNS servers
- Problems with browser extensions or network drivers.
Consequences of the error on web browsing and site performance
The DNS_PROBE_FINISHED_NXDOMAIN error has a negative impact on user navigation and site performance. For users, it results in the inability to access the desired site, which can affect their online experience. For website administrators, this anomaly can cause a drop in traffic, a decrease in conversions and a negative impact on referencing, hence the importance of resolving it quickly.
Approaches to resolve the DNS_PROBE_FINISHED_NXDOMAIN anomaly
To eliminate the DNS_PROBE_FINISHED_NXDOMAIN error, it is crucial to detect and resolve DNS configuration issues. Here are two steps to follow:
- It is important to ensure that the DNS settings associated with the domain are correct. To do this, log into the domain management panel at your provider and check the DNS records, such as the A, AAAA and CNAME records. Make sure they point to the appropriate IP addresses and that no conflicting or outdated records remain.
- DNS server configuration errors can also cause the DNS_PROBE_FINISHED_NXDOMAIN anomaly. To identify and resolve them, go to the DNS server control panel (usually managed by your hosting company or registrar) and check the settings, such as DNS zones, redirects and aliases. If you detect any errors, make the necessary changes and wait a few hours for the DNS updates to propagate.
Approaches for site managers
Control the distribution of DNS information
DNS propagation refers to the process of updating DNS information on servers around the world. After any changes are made to DNS records, it is essential to check the progress of this propagation using online tools such as DNS Checker or WhatsMyDNS. If the propagation is incomplete or takes too long, contact your DNS service provider for assistance.
Rectify redirection issues
Redirection problems, such as infinite redirect loops or incorrect redirects, can result in the DNS_PROBE_FINISHED_NXDOMAIN error. Examine the redirection rules in your .htaccess file (for Apache servers) and make sure they are properly configured. Remove or adjust conflicting or outdated rules.
Review and address security issues (e.g. SSL certificates)
Security issues, such as expired, misconfigured or self-signed SSL certificates, can also cause DNS errors. Use online security scanners, such as SSL Labs or Qualys SSL, to identify SSL certificate issues. If necessary, renew, properly configure or replace failed SSL Certificates to ensure a secure and reliable connection between users and your site.
Approaches for users
Here are six possible approaches:
Flush DNS cache
The DNS cache temporarily stores information about visited sites, which helps to reduce loading time. However, a corrupt or outdated cache can cause problems. To solve this, it is recommended to purge the cache following the instructions specific to your operating system.
Change the DNS servers used
Changing the DNS servers can also resolve the anomaly. Public DNS servers, such as those provided by Google or Cloudflareoften offer better performance and reliability. To do this, change the DNS settings of your operating system or router.
Restore IP protocol settings
If the problem persists, try to restore the IP protocol settings, which will reset the network connections. This can be done via the command prompt or terminal, depending on your operating system.
Disable conflicting browser add-ons
Some browser extensions may conflict with DNS settings or disrupt navigation. Temporarily disable the add-ons to determine if one of them is causing the problem. If so, uninstall the problematic extension.
Update network card drivers
Outdated or corrupted network card drivers can also cause the DNS_PROBE_FINISHED_NXDOMAIN error. Make sure you have the latest versions of your drivers by checking the manufacturer's website or using your operating system's device management tool.
Use a virtual private network (VPN)
Finally, using a virtual private network can bypass some DNS issues by hiding your real IP address and routing your traffic through a VPN server. This can be useful if the error is due to geographic restrictions or problems with your ISP.
Anticipate and avoid the DNS_PROBE_FINISHED_NXDOMAIN anomaly later
To prevent the DNS_PROBE_FINISHED_NXDOMAIN error from occurring in the future, it is essential to adopt proactive and secure practices. Here are five relevant tips to anticipate and avoid this problem:
Use DNS tracking software
DNS monitoring software, such as UptimeRobot, DNS Spy or Pingdom, can monitor the availability and performance of DNS services. These tools send alerts when problems are detected, helping to quickly resolve anomalies before they affect users.
Establish backup systems and recovery strategies
Implementing regular backup systems and recovery strategies for website data and DNS configurations allows for quick recovery in case of problems. Regular backups minimize disruptions and downtime when restoring services in the event of an error.
Ensure periodic maintenance of the website and DNS servers
Periodic maintenance of the website and DNS servers, including checking configurations, updating software and optimizing performance, helps to avoid errors caused by technical problems or configuration conflicts.
Opt for safe and secure DNS providers
Choose reputable, safe and secure DNS providers such as Google DNS, Cloudflare or Amazon Route 53ensures better reliability and faster resolution of DNS queries. These providers usually offer advanced features, such as DDoS protection and load balancing, which contribute to the stability of the DNS service.
Hire a professional service for WordPress
If you use WordPress, consider hiring a professional service to manage and maintain your site. These WordPress experts experts can identify and fix DNS issues, optimize performance, and ensure a quality user experience. WordPressWordPress support servicessupport services, such as Ingenius, can provide expert assistance in preventing and resolving DNS_PROBE_FINISHED_NXDOMAIN errors.
Conclusion, how to solve the error?
In sum, to rectify and anticipate the DNS_PROBE_FINISHED_NXDOMAIN anomaly, several key steps should be followed. For the resolution of the error, it is necessary to understand its causes, and then explore solutions for users and site managers. On the prevention side, it is recommended to use DNS monitoring tools, establish backup and restore plans, ensure regular maintenance, opt for reliable DNS services and, for WordPress sites, use a professional Wordpress agency.
It is crucial to emphasize the importance of quickly resolving the DNS_PROBE_FINISHED_NXDOMAIN anomaly to provide an optimal user experience. An accessible and functional site not only ensures visitor satisfaction, but also contributes to better SEO and the overall success of your online presence.
Annexes
In this section you will find additional information to help you better understand and resolve the DNS_PROBE_FINISHED_NXDOMAIN error.
List of DNS diagnostic tools :
- DNS Checker
- WhatsMyDNS
- IntoDNS
- DNS Spy
- MxToolbox
- Pingdom
- UptimeRobot
- SSL Labs
- Qualys SSL
Glossary of technical terms related to DNS :
- DNS : system for translating domain names into IP addresses.
- A record: type of DNS record associating a domain name with an IP address.
- AAAA record: type of DNS record associating a domain name with an IPv6 address.
- CNAME record: type of DNS record that creates an alias for another domain name.
- DNS server: A server that responds to DNS queries and provides the corresponding IP address information.
- DNS zone: set of DNS records for a specific domain name.
- DNS propagation: process of updating DNS information on servers around the world.
- DNS cache: temporary memory storing DNS information of recently visited sites.
DNS_PROBE_FINISHED_NXDOMAIN error FAQ:
Why does this error appear?
The DNS_PROBE_FINISHED_NXDOMAIN error occurs when the DNS server fails to resolve the domain name to an IP address.
How long does it take to resolve this error?
The resolution of the error depends on the underlying cause and the method used. Some solutions can take effect immediately, while others, such as DNS propagation, may take several hours.
Does the DNS_PROBE_FINISHED_NXDOMAIN error affect all users or only some?
It depends on the cause of the error. If the problem is due to a DNS misconfiguration on the server side, all users may be affected. If the error is due to local problems, such as DNS cache or network settings, only some users may be affected.
What is the difference between the DNS_PROBE_FINISHED_NXDOMAIN error and the DNS_PROBE_FINISHED_NO_INTERNET error?
The DNS_PROBE_FINISHED_NXDOMAIN error is related to a domain name resolution problem, while the DNS_PROBE_FINISHED_NO_INTERNET error indicates a lack of Internet connection or a problem with the Internet service provider.
