
in daily office or entertainment browsing, the inaccessibility of web pages is a problem that many users will encounter, from interrupting the rhythm of browsing to affecting the progress of work. Many people are often at a loss when encountering such problems and do not know where to start. This article will sort out a system of troubleshooting and repair solutions from local to network, from browser to server, covering from basic to advanced solutions, to help you quickly locate the root cause of web page inaccessibility and solve the problem.
the problem that most web pages cannot be accessed, the root cause is in the local network link, so the first step is to confirm whether the network is running normally.
1, check the network connection hardware
first check the indicator status of the router and the light cat. If the light cat LOS light is red, it means that the fiber optic line is faulty. You can try to restart the light cat and wait for 5 minutes before observing whether the indicator light returns to normal. If the WAN port indicator light of the router is not on, it may be that the network cable is loose or damaged. You can re-plug and unplug the network cable or replace a new network cable for testing. For users who use WiFi, you can switch to the wired network to determine whether the WiFi signal is unstable and the webpage cannot be accessed.
2, test network connectivity
press the Win + R key to open the running window, enter cmd to open the command prompt, enter ping 8.8.8.8 and enter in the window, if there is a prompt that request timed out or the packet loss rate is too high, indicating that there is a connectivity problem in the local network, you can contact the network operator for repair; if you can receive a reply normally, indicating that the basic connectivity of the local network is normal, you can enter the next step of investigation.
eliminate local network problems, if the page is still inaccessible, you need to shift the focus of the investigation to the browser itself.
1, clean browser cache and Cookie
long-term use of the browser, the old cached data and cookies may appear abnormal, making the webpage inaccessible. Open the browser's settings page, find the Privacy and Security option, select Clean Browsing Data, tick the Cached Files and Cookies option, select the time range as All times, and click the Clean Up button. After cleaning, restart the browser and try to visit the target webpage again.
2 Disable browser extensions
some browser extensions may conflict with the code of the webpage, making the webpage inaccessible. Open the browser's extension management page, temporarily disable all extensions, and then restart the browser to test whether the webpage can be accessed normally. If it returns to normal, you can enable the extensions one by one, find the extensions that caused the conflict and uninstall them.
3, switch or reset the browser
If the above method is invalid, you can try to switch to another browser to access the target web page to determine whether the core file of the current browser is damaged. If other browsers can access normally, you can reset the original browser to restore the default settings of the browser and clear the possible abnormal configuration.
if the local network and browser are not abnormal, the problem of the page being inaccessible may be on the website's own server.
1, test access to other websites
first try to access a number of different well-known websites, such as Baidu, Taobao, etc., if these websites can be opened normally, only the target page cannot be accessed, indicating that the server of the target website may be faulty; if all websites cannot be accessed, then go back to the previous steps to re-troubleshoot local network and browser problems.
2, check the website server status
can check the server response status of the website by entering the domain name of the target page through the online website status query tool. If the tool shows that the server is not responding or the status code is 500, 503, etc., it means that the website server is under maintenance or malfunctioning. In this case, you can only wait for the website operator to repair, and the user cannot solve the problem that the webpage cannot be accessed by himself.
DNS is responsible for converting the domain name to the server Internet Protocol Address. Once there is a problem with the DNS configuration, the webpage will be inaccessible, which is also an easily overlooked troubleshooting link.
1, refresh the local DNS cache
open a command prompt window, enter ipconfig /flushdns and press Enter, and wait for the system to prompt that the DNS cache has been successfully refreshed. The DNS cache may store expired domain name resolution records. After refreshing, you can get the latest resolution information to solve the problem that the webpage cannot be accessed due to the expired cache.
2 Replacing public DNS servers
If you still can't solve the problem after refreshing the cache, you can try to replace the public DNS server. Open the Network and Sharing Center, find the currently used network connection, click Properties, select Internet Protocol Version 4, click Properties, select Use the following DNS server address, enter the preferred DNS as 114.114.114.114, the alternate DNS is 8.8.8.8, click OK after the setting is completed, and then try to access the webpage to determine whether the original DNS server failure caused the webpage to be inaccessible.
sum up, the troubleshooting of inaccessible web pages needs to follow the logic from local to network, from basic to advanced, first check the local network hardware and connectivity, then troubleshoot the browser's cache, expansion and other issues, then verify the status of the website server, and finally check whether the DNS configuration is normal. Through the troubleshooting solution of this system, most web page inaccessible problems can be quickly located and solved to help users restore normal web browsing experience.