How to solve domain name blocking? Reasons for domain name blocking and how to deal with it

in the process of website operation, many webmasters will encounter the problem that the domain name cannot be accessed normally, among which domain name blocking is one of the more common incentives. Domain name blocking will not only cause users to be unable to enter the website, but also directly affect the traffic, ranking and brand reputation of the website, bringing no small losses to operators. In order to help you solve this kind of problem quickly, this article will analyze the triggering reasons of domain name blocking in depth, and provide a system of solutions, so that you can accurately locate the problem and solve it effectively.

What circumstances trigger domain name blocking?

domain name blocking is not untraceable, its triggers are often directly related to the compliance, security and other factors of the website, understanding the common trigger scenarios is the first step to solve the problem.

1, the website contains illegal content

this is one of the core reasons for triggering domain name blocking. If a website involves pornography, violence, gambling, fraud and other content that violates laws and regulations, or publishes false propaganda, infringing and pirated information, regulatory authorities or domain name service providers will take domain name blocking measures to maintain compliance in the network environment. Such domain name blocking is usually mandatory and relatively difficult to recover.

2, the server has security risks

when the website server is hacked, implanted malicious code, Trojan, or used to launch a network attack, the server service provider or security monitoring system will start the domain name blocking mechanism to prevent the spread of risk. In addition, if the IP segment where the server is located is occupied by a large number of malicious websites, it may also lead to normal domain names being jointly triggered domain name blocking.

3, DNS resolution or filing exception

domestic domain names need to complete the ICP filing in order to use normally, if the filing information expires, false or not timely updated, the authority will trigger the domain name shielding; in addition, DNS resolution configuration error, DNS server failure, may also be determined by the system as an abnormal state, and then lead to domain name shielding, domain name shielding in this case is often accompanied by DNS resolution failure prompt.

Second, how to accurately check after the domain name is blocked?

encounter domain name blocking, blind attempts to solve often get twice the result with half the effort, accurate investigation can find the root cause of the problem, and provide direction for subsequent processing.

1 Verify access status through multiple end points

first try to access the domain name in different devices and different network environments, such as switching mobile phone traffic, home WiFi, and office networks. If all environments cannot be accessed, the probability is that the domain name is blocked; if only part of the network cannot be accessed, it may be local DNS pollution or network restrictions, rather than global domain name shielding.

2, query domain name and server status

use the domain name query tool to check the WHOIS information of the domain name to confirm whether the domain name is locked and suspended; at the same time, check whether the Internet Protocol Address of the server can be pinged normally, and check the notification email of the server service provider to confirm whether the domain name is blocked due to server security problems. In addition, you can also verify whether the filing status is normal through the filing query system.

3, contact the service provider to obtain shielding instructions

if you can not determine the cause of their own investigation, you can directly contact the domain name registrar or server service provider, submit the domain name information to apply for the specific reason of the domain name shielding, most service chambers will give a clear violation prompt or rectification direction, which is the most direct and efficient way of investigation.

Processing methods of different types of domain name shielding

for domain name shielding triggered by different reasons, there are obvious differences in processing methods, and corresponding measures need to be taken according to the specific situation.

1, domain name blocking caused by illegal content

first to comprehensively clean up the illegal content in the website, including pages, comments, attachments and other sections to ensure that the content fully complies with the requirements of laws and regulations; then submit the rectification certificate to the domain name service provider or regulatory authorities, and apply to lift the domain name block. In some cases, it may be necessary to cooperate with the completion of compliance review. After the review, the domain name can resume normal access.

2, server risk caused by domain name blocking

first comprehensive antivirus and vulnerability repair on the server, remove malicious code and Trojan, timely update the version of website programs and plug-ins, and patch security bugs; if there is a risk in the server IP segment, you can apply to replace the server Internet Protocol Address, and then submit a security test report to the service provider, apply to remove the domain name shield.

3, filing or DNS anomalies

if the domain name blocking is triggered due to abnormal filing, it is necessary to log in to the filing system to update or complete the filing information, submit the real and effective main information, and wait for the authority to pass the review, the domain name blocking status will be automatically lifted; if it is a DNS problem, it is necessary to check whether the DNS resolution record is correct, reconfigure the resolution information or replace the regular DNS server, generally within 24 hours can return to normal.

How to effectively prevent domain name blocking?

it is better to take preventive measures in advance to reduce the probability of domain name blocking from the root cause and ensure the stable operation of the website.

1, strictly control the website content compliance

establish a content review mechanism, pre-audit all content published on the website, to prevent the emergence of illegal information; at the same time, regularly inspect the content of the website, clean up the illegal content of user comments and message areas in a timely manner, and avoid triggering domain name blocking due to user spontaneous content.

2, strengthen server security protection

install professional server security protection software, open real-time monitoring and intrusion interception function, regularly carry out security scanning and vulnerability repair on the server; choose a regular and reliable server service provider, and give priority to using an independent Internet Protocol Address to reduce the risk of triggering domain name shielding due to IP segment.

3, maintain domain name and record information

regularly check the WHOIS information of the domain name to ensure that the domain name registration information is true and effective, and avoid the domain name being locked due to expiration and non-renewal; at the same time, pay attention to the valid period of the filing information, timely update the main information and website content, and ensure that the filing status continues to be normal.

To sum up, domain name blocking is a risk that cannot be ignored in website operation. Its triggering is related to content compliance, server security, filing status and other factors. By accurately investigating and determining the specific reasons for domain name blocking, and then taking corresponding rectification and appeal measures, the problem can be effectively solved. At the same time, daily compliance control and security protection can reduce the probability of domain name blocking from the root cause, and ensure the stable operation of the website and user access experience.