Why is my IP blocked? Find the reason and fix it

A website blocks an IP address when its security rules judge traffic from that address too risky. The usual triggers are too many requests, a VPN or data center exit, a country or network rule, or a record of abuse on the address. The rule belongs to the site's owner, so only the owner can lift it. A block can also come from something you did not do, because addresses are shared, reused and judged by their neighbors.

#What does my block message mean?

The exact words on the page tell you who set the block and why. Sites behind Cloudflare show numbered errors, and Cloudflare documents each one. Before you close the page, copy the full message, any error number and the Ray ID or request ID.

Cloudflare's page for the banned address errors is plain about who decides. You are told to ask the website owner to check its security settings or allow your address. Cloudflare adds that its support "cannot override a customer's security settings" (Cloudflare docs, updated April 23, 2026).

#Why do websites block an IP address?

Site owners can block, challenge or allow traffic by single address, address range, network (ASN) or country (Cloudflare docs). The causes below run from the quickest to test to the ones that need someone else's help.

Too many requests

Rate limits cap how many requests one address may send in a period of time. A server says so with status 429, Too Many Requests, and may add a Retry-After header saying how long to wait (RFC 6585). Cloudflare's error 1015 means the same thing. Cloudflare warns that trying again and again within a short time may extend the block.

A VPN, proxy or Tor exit

Large services such as OpenAI and Netflix document blocks for VPN users. OpenAI's help says a VPN "can sometimes trigger a block" because it masks your original address. Netflix shows "You seem to be using a VPN or proxy" with error code E106. It also notes that some antivirus software comes with a VPN that may be switched on.

A country or network rule

Some owners block whole countries or whole networks. Cloudflare's error 1009 means your country or region is banned, and error 1005 means your provider's network is. OpenAI's help adds that an address from a "high-risk area" may be blocked. A rule like this hits everyone in that place or network, whatever each person did.

A shared address

Your address may serve many people at once: a school, an office, a VPN, or a mobile provider's carrier-grade NAT. When one user misbehaves, a block on the address lands on all of them (RFC 6269). Carrier-grade NAT uses the range 100.64.0.0/10 inside the provider's network. If your router's WAN address falls in that range, you share your public address (RFC 6598).

An address with someone else's history

Addresses are reused. Amazon Web Services, for example, returns a released public address to the pool it assigns new addresses from (AWS docs). FFraud keeps a confirmed attacker's score after the address goes quiet, because attackers often rest their servers between campaigns. A new holder carries that record until a review or a recheck clears it.

A bad neighborhood

Abuse clusters in blocks of addresses, and some systems judge an address by the block around it. FFraud's score counts how much of the surrounding /24, a block of 256 addresses, is abusive, even for a quiet address (how we score). In FFraud's open data, three in four listed IPv4 addresses share their /24 with at least one other listed address.

In 518 blocks, more than half of the 256 addresses were listed. Those blocks held 102,412 listed addresses, 6.6 percent of the IPv4 list (same build). A clean address in a block like that can still score higher in FFraud because of its neighbors.

Something on your network

Malware or a hijacked device can attack or spam from your connection without your knowledge. In June 2025 the FBI warned that infected streaming boxes, projectors and other home devices turn home networks into proxies used by criminals. Their traffic leaves with your address, so the sites it hits see you as the source.

Your own failed logins

If the block is on your own website or server, your own failed logins may be the cause. Tools such as fail2ban read log files and ban addresses with too many failed login attempts, for a set amount of time (fail2ban README). Web hosts run similar systems: OVH shows "Your IP has been banned" after very many or suspicious requests from one address.

#How can I check what sites see about my IP?

1. Save the details. Copy the message, the error number, the Ray ID or request ID, the time and your IP address. Cloudflare and OVH both ask for these.
2. Try another network. Load the same page on mobile data. If it works there, the block follows your address or your network.
3. Look up your address. What is my IP shows the address sites see, its risk score and any VPN, proxy, Tor or data center flag.
4. Check its record. The IP blacklist check shows whether FFraud lists the address, what it was caught doing, when it was last seen and how much of its /24 is flagged.
5. Check your router. A WAN address from 100.64.0.0 to 100.127.255.255 means carrier-grade NAT (RFC 6598).

Our tools show FFraud's evidence. Each site runs its own rules and may use other data, so a clean result here cannot prove why one site blocked you.

#How do I get my IP unblocked?

1. Wait out a rate limit. For a 429 or error 1015, stop retrying and come back later, because repeated tries can extend the block.
2. Turn off any VPN or proxy, including one built into antivirus software, and load the page again.
3. Clean your network. Scan your computers for malware and unplug devices you do not trust. The steps are in our guide to Google's unusual traffic page.
4. Write to the site owner. Send the message, the error number, the Ray ID or request ID, the time and your IP address, and ask them to allow your address. Cloudflare's docs say only the owner can change these rules.
5. Ask your provider whether your address is shared or has a history, and whether it can assign you another one.
6. Dispute a wrong FFraud listing. If our check lists your address and you think the listing is wrong, ask for a review. A person checks it. A false positive leaves the next open data build within a day or two.

A VPN changes the address a site sees, but services such as OpenAI and Netflix block VPN users too. Use one to test the cause, then fix the cause with the steps above.

#Is a blocked IP the same as a blacklisted IP?

A block is one site's own rule. A blacklist, or blocklist, is a shared list that many systems read. Mail servers query DNS-based lists (DNSBLs) to decide whether to accept mail, a scheme the IETF documented in RFC 5782. Only the list that listed you can remove you from it. FFraud's database records attacks seen from an address and sits apart from mail lists. If your mail bounces, read why is my IP blacklisted.

#Questions people ask