Google Search Users Encounter “Unusual Traffic” Blocks
Google Search users are increasingly encountering a message stating, “Our systems have detected unusual traffic from your computer network,” followed by a request to complete a CAPTCHA. The issue, first noted by users as early as April 2021, appears to stem from Google’s automated systems identifying search activity that deviates from typical human behavior. As of , the problem persists for some users.
The message itself indicates that Google suspects automated software, such as bots or malicious scripts, may be initiating the requests. According to Google’s support documentation, the block will expire once the suspicious activity ceases. The specific IP address flagged in one recent instance is 2403:6b80:6:100::6773:882, and the time of detection was , while attempting to access a YouTube video at https://www.youtube.com/watch%3Fv%3D9uE7kDkrZnc.
Why is this happening?
Several factors can trigger the “unusual traffic” message. Google identifies rapid-fire searching as a potential cause, noting that typing queries “at lightning speed” can raise red flags. The use of automated tools, such as those employed for keyword research or data scraping, is also a known trigger, particularly for SEO professionals. The message can also appear if others sharing the same network connection – whether at a school, business, or through a Virtual Private Network (VPN) – are sending automated searches to Google.
VPNs and the Issue
VPNs are frequently implicated in these blocks. Google’s support documentation explicitly states that the issue can arise if other users on the same VPN are sending automated searches. Some VPNs and IPv6 tunnel services may cause all traffic to be blocked because they make it difficult for Google to differentiate between legitimate and abusive activity. Users experiencing this issue are advised to uninstall the VPN or contact their VPN provider.
What can users do?
The most immediate solution is to solve the reCAPTCHA presented with the message. This confirms to Google that a human is initiating the requests. If the message persists, several steps can be taken. Users are advised to scan their computers for malware, as malicious software can cause Google to flag their network activity. Contacting a network administrator or IT professional is recommended if the problem appears to originate from a shared network.
One user on an Apple support forum reported success by enabling HTTP/3 in Safari’s advanced settings (Settings, Safari, Advanced, Experimental Features, and turn on HTTP/3
). However, this solution is not universally applicable and may depend on carrier compatibility.
Beyond Individual Users
The problem isn’t always limited to individual users. Google’s support documentation suggests that the issue can also occur if others using the same internet provider are sending automated searches. In such cases, contacting the internet provider is recommended. The core issue, as Google explains, is identifying search activity that doesn’t align with typical human behavior, and protecting the integrity of its search results.
