Quick Answer
Cloudflare Error 1005: Access Denied means the website owner has blocked the Autonomous System Number (ASN) associated with your connection. If you're a visitor, send the website owner a screenshot of the 1005 error so they can investigate the block. If you own the website, search Cloudflare Security Events using the Ray ID or client IP address and review your IP Access Rules to make sure the ASN isn't being blocked unintentionally.
Key Takeaways
- Cloudflare Error 1005 means the website has blocked the ASN associated with the visitor's network.
- An ASN represents a network or group of IP addresses operated by an ISP, hosting company, cloud provider, or other network operator.
- Visitors generally cannot resolve an intentional 1005 block through browser changes, clearing cookies, or changing DNS settings.
- Visitors should provide the website owner with a screenshot of the error so the block can be investigated.
- Website owners should search Cloudflare Security Events using the Ray ID or client IP and review their IP Access Rules.
- Error 1005 differs from Error 1010, which concerns browser signatures, and Error 1015, which concerns rate limiting.
Error 1005 denies your access to a website and lets you know that you have been banned. This can be a frustrating error to come across, especially if you are a legitimate user with no malicious intent. Luckily, as with most Cloudflare error codes, there are a few steps you can take to fix it.
This article will explain what error 1005 is, explain why it happens, present a few solutions, and offer up suggestions that could help prevent the error from happening again.
What Is Cloudflare Error 1005?
Cloudflare Error 1005 is an Access Denied error that appears when a website has blocked the Autonomous System Number (ASN) associated with your connection.
An ASN identifies a network or group of IP addresses operated by an internet service provider, hosting company, cloud provider, proxy network, or another network operator. Because the block applies to the ASN rather than only one individual IP address, multiple users on the same network may encounter Error 1005.
If you're visiting a website and see this error, the restriction is controlled by the website owner through their Cloudflare security settings. Changing your browser, clearing cookies, or switching DNS servers generally will not resolve an active ASN block.
Website owners can investigate the error using the Cloudflare Ray ID or the visitor's IP address in Cloudflare Security Events and then review whether the ASN is being blocked intentionally.
Why Does Cloudflare Error 1005 Happen?
Cloudflare Error 1005 happens when the ASN associated with a visitor's network matches a block configured by the website owner.
Website owners may block an ASN when traffic from that network has previously been associated with abuse, excessive automated requests, malicious activity, or other unwanted behavior. Because an ASN can contain a large range of IP addresses, the restriction can also affect legitimate users who happen to use the same ISP, hosting provider, cloud network, or proxy provider.
For visitors, the block usually cannot be fixed directly from the browser because the restriction exists in the website's Cloudflare configuration. The best option is to contact the website owner and provide a screenshot of the error, including the Cloudflare Ray ID if one is shown.
For website owners, Error 1005 can also occur when an ASN was blocked too broadly or unintentionally. In that case, review Cloudflare Security Events and IP Access Rules to identify the rule responsible and determine whether the ASN should remain blocked.
Is Error 1005 Your Fault?
Error 1005 is most likely not your fault. As we mentioned above, shared IPs could mean someone else’s behavior was the catalyst for the IP ban. Additionally, datacenter and free proxies have been touted as the most common causes for error 1005 access denied.
Mobile IPs are the rarest form of IPs to be flagged and denied as they are the most trusted by Cloudflare and banning a mobile IP can cause an unknown number of users to lose access to a website or service so it is not worth the risk of banning them.
Overall, seeing error 1005 is not necessarily your fault, unless you are enacting any of the causes we will mention below.
Fixing Error 1005
Fixing Cloudflare error 1005 is simple and requires no coding at all. Some of these solutions are instantaneous while others might take a short while. Either way, it is best to go through each one of them until a fix is found.
Turn Off Your VPN or Proxy
If you are using a Virtual Private Network (VPN) service or a proxy server, disable them. These tools can present the appearance of a bot, especially with a VPN that is constantly bouncing between servers or a rotating proxy.
As we mentioned, using a VPN or a free proxy is not recommended as those servers are not reputable and often get blacklisted. The IPs being used have most likely already been banned by websites so if you are using those for your online activities, it is best to stop.
Check Your IP Reputation
Head to an IP checker website and see if your IP address is blacklisted. If it is, consider switching networks or providers.
Change DNS Servers
Set your preferred DNS server to a trusted server such as Google’s 8.8.8.8 or Cloudflare’s 1.1.1.1 as a bad DNS server can mislead websites.
Clear Browsing Data and Cookies
This is one of the most common fixes for any proxy error code. Head to your browser settings and locate the browsing data such as cookies and cached data. Resetting them might clear some identifiers that Cloudflare uses or purge any bad data that might have been collected during one of your visits.
Check for Insecure Internet Settings
Check your internet settings as some browsers will block specific HTTP headers or allow unsafe extensions. You can revert all your settings to default and try the page again. Do your best to avoid any public Wi-Fi networks as public networks have shared IPs which makes them more vulnerable to malicious activities. In this instance, it is recommended to switch off your Wi-FI connection and switch to your mobile data connection and try again. If the issue persists, then you know the problem is not due to your internet connection.
Correct Your System’s Date and Time
If your device’s date and time are not synchronised with real-time or configured correctly, the website may consider it as suspicious activity and prevent you from accessing the content.
Check Your Antivirus Program
If you installed an antivirus program, take a look at the software to ensure it is not blocking your browser or the website you are attempting to access. If your program is blocking the website, you will need to manually add your browser or the website to the whitelist.
Try a Different Device or Browser
If all else fails, try a different browser or device and check if the website is functional on those. If it is, then the issue is most likely related to your browser.
Preventing Error 1005
If you are a website owner running on Cloudflare and have gotten complaints from users regarding error 1005, there are ways to lessen the chances of the code appearing for your users while still maintaining a secure website.
You can adjust the firewall settings in Cloudflare, check the rules tied to IP addresses, VPN services, or proxy server use. The rules set in place might be too strict and loosening them might help reduce the odds of the error appearing to your customers. It is wise to keep in mind that not everyone who uses a VPN or proxy is using them for malicious intent.
You can also whitelist specific IPs that you trust which will help reduce any false positives. You can set rules to allow certain websites and legitimate bots through while still keeping any bad actors away.
Keep an eye on your DNS servers and DNS resolver configuration. If there is misrouting traffic, people may appear to come from less favorable regions where malicious activities are common but they are not visiting with malicious intent. You should also keep an eye on your logs as frequently as you can. If you notice malicious activities or spammy HTTP headers, clean those patterns.
If you are a user and have noticed frequent 1005 errors, here are some steps you can take to lessen the chances of seeing the error. When using a VPN, stick to reliable providers with a strong reputation for privacy and security. Look for features that include a no-logs policy, strong encryption, and a wide range of server locations.
For proxy users, consider using HTTP, HTTPS, or SOCKS proxy types when browsing. HTTPS proxies tend to be preferred for secure browsing. Additionally, try and avoid using datacenter proxies if possible. Residential and mobile proxies have a lower chance of detection and bans.
If you are a more technically advanced internet user and perform ethical web scraping, look into headless browsers for bypassing error 1005. They simulate real user interactions with websites without a GUI which makes them ideal for automation tasks. Headless browsers like Playwright and Selenium can execute JavaScript and handle complex webpages.
You can also implement browser fingerprinting techniques to mimic legitimate browser fingerprints which will assist in avoiding detection by Cloudflare’s security systems. This includes replicating HTTP headers, user agent strings, and other browser-specific attributes that Cloudflare uses to identify genuine users.
Conclusion
Error 1005 is a protective measure by Cloudflare whenever a request appears to be suspicious. Most of the time, it is due to IP reputation, network configuration, or automated behavior detection. It can lead to frustration for legitimate users who are simply trying to access the website or to web scrapers who experience this roadblock.
One of the great things about error 1005 is that it is a temporary annoyance that can be solved easily. Quick solutions include making adjustments to the network you are connected to, clearing browser data, or looking into the proxy or VPN connection. Understanding how Cloudflare evaluates requests makes it easier to fix this issue and reduce the chances of encountering it again for both regular users and website administrators.