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Arbor DDoS vs SiteLock comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Jun 3, 2026

Review summaries and opinions

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

Categories and Ranking

Arbor DDoS
Ranking in Distributed Denial-of-Service (DDoS) Protection
3rd
Average Rating
8.8
Reviews Sentiment
6.9
Number of Reviews
57
Ranking in other categories
No ranking in other categories
SiteLock
Ranking in Distributed Denial-of-Service (DDoS) Protection
26th
Average Rating
6.6
Reviews Sentiment
8.1
Number of Reviews
3
Ranking in other categories
Static Application Security Testing (SAST) (46th), CDN (15th), Web Application Firewall (WAF) (38th)
 

Mindshare comparison

As of August 2026, in the Distributed Denial-of-Service (DDoS) Protection category, the mindshare of Arbor DDoS is 6.1%, down from 12.1% compared to the previous year. The mindshare of SiteLock is 2.2%, up from 0.7% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Distributed Denial-of-Service (DDoS) Protection Mindshare Distribution
ProductMindshare (%)
Arbor DDoS6.1%
SiteLock2.2%
Other91.7%
Distributed Denial-of-Service (DDoS) Protection
 

Featured Reviews

reviewer1331304 - PeerSpot reviewer
Director Of Research And Development at a comms service provider with 11-50 employees
Automated threat intelligence and flow-based mitigation have improved our DDoS defense
A very useful feature in Arbor DDoS is its ability to send flow spec announcements to routers. For example, if it is clear that a Layer 3 or Layer 4 attack is occurring and the attack pattern is identified through source and destination IP addresses and ports, you can generate flow spec filters. These filters are transferred through BGP to border routers, which automatically build filters, mitigating the attack even at the network's boundary and preventing it from reaching the TMS. This allows the TMS to focus on other tasks. This is a highly effective feature that can mitigate huge volumetric attacks; for example, we experienced a 32-gigabit attack, and all those 32 gigabits were dropped by our border routers, not by Arbor DDoS itself. The flow spec announcement was generated by Arbor DDoS, and as far as I know, the same technology is used by Radware, but it comes under a different feature and a different license. At the time, we were told that flow spec mitigation was an additional very expensive license to purchase from Radware, while Radware included everything in one package.
it_user723534 - PeerSpot reviewer
Guitarist at a media company with self employed
It's not easy to get out once you're in
Sitelock may perform a useful service, but be wary of giving them your credit card information. When you sign on for the paid service, Sitelock: * Hides (makes it difficult to find) that they default the auto-renew (you can't sign up without agreeing to have them automatically bill your credit card every year). * Hides (makes it difficult to find) how to stop auto-renew: * You can't just stop auto-renew from your billing panel, the way you can with reputable businesses. * You have to hunt their website for a link (in extremely small font) to the page which contains instructions for cancelling. * When you get to that page, turns out it's the 5000+ word "Terms of Service" document, which you have to scour to find a phone number. Then, you have to call and get put on hold (or if you like, they will call you back three days later). Once you finally get through, you have to jump through a lot of security hoops. All of the above, just to cancel the service. Their product may or may not be OK, but be forewarned that with Sitelock, it's not easy to get out once you're in.

Quotes from Members

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

Pros

"We are able to respond quickly and prevent DDoS attacks."
"It prevents all unwanted or malicious traffic, using the Threat Intelligence feeds."
"Analytics and its attack mitigation capabilities are valuable features of the solution."
"The auto-mitigation, that signaling feature, where it automatically raises an alarm that a line is under attack, is important. The upstream service provider will then do something to reduce the load on our internet lines. The fact that it's automated means I don't have to sit and always be looking at threats coming through. It does it almost automatically, without any intervention by me."
"The artificial intelligence feature is most appreciated. This solution can lower the throughput and clear the traffic, which is something really important for us. It also provides good protection. It is user-friendly, and its integration has also been really fast. We have many critical applications, and it was easy to integrate Arbor DDoS with our website, mobile application, and web banking."
"It's an excellent product DDoS protection against attacks."
"The solution is really stable and is the most stable device in our topology."
"Valuable features include simple and centralized management of user access and capabilities, as well as Web 2.0 interactive attack alerting, traffic visualization, and mitigation service control."
"Not only did SiteLock's website scanner find the issue with my website, but with SiteLock I was able to implement a security system to prevent future breaches."
"It seems to provide a bit of useful information on website health."
 

Cons

"The following areas need improvement: opening and tracking support tickets, online support resources, software upgrades/updates and replacement media, and event management guidelines."
"New versions are sometimes released before the bugs are worked out."
"When it comes to some false positives, we need to tweak the system from time to time. There is room for improvement when it comes to the actual mitigation because of some false positives."
"The solution's shortcomings are related to its documentation, so it's an area that needs to improve."
"The implementation should be made easier."
"I think the diversity of protection is extremely limited. It must be expanded in future upgrades and versions."
"Unfortunately, these devices are not scalable and we have to upgrade to the next model in order to increase the threat mitigation capabilities."
"They should improve the reporting section and make it a little bit more detailed. I would like to have much better and more detailed reports."
"Sitelock may perform a useful service, but be wary of giving them your credit card information."
 

Pricing and Cost Advice

"Because the solutions from competitors are very different, it's not easy to compare. However, the licensing from Arbor is clear and understandable and the pricing is reasonable when looking at the market, in general."
"I don't know about the pricing details as our company's service provider offers us the solution as an inbuilt feature within the internet bandwidth they provide us."
"Arbor is striking a good balance between pricing and what they deliver."
"There is room for improvement with the pricing. It is an expensive solution. The issue with the pricing is more the way it is built. Right now we're paying per router, and there's a limitation there. I would like to see bundle-pricing where there is an overall solution cost."
"We do not use the Arbor Cloud DDoS solution because it is too costly."
"Pricing is slightly on the higher side."
"Regarding pricing, I would rate it as average. Arbor DDoS offers good value for money with our DDoS filter device. For higher protection needs, Arbor’s CloudMeter’s DDoS mitigation or hardware devices might be more expensive, but customers who need them are usually prepared for the cost and the additional resources required."
"I believe that the price of Arbor DDoS falls under the bracket of medium to high price."
"You can't just stop auto-renew from your billing panel, the way you can with reputable businesses."
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Top Industries

By visitors reading reviews
Financial Services Firm
15%
Comms Service Provider
13%
Outsourcing Company
7%
Computer Software Company
7%
Construction Company
18%
Comms Service Provider
13%
Manufacturing Company
12%
Transportation Company
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business26
Midsize Enterprise14
Large Enterprise29
No data available
 

Questions from the Community

Which is the best DDoS protection solution for a big ISP for monitoring and mitigating?
I would say if it’s an ISP that will build a scrubbing center, Netscout/Arbor is a good solution. In all other solutions, Imperva is a great choice.
Which is the best DDoS protection solution for a big ISP for monitoring and mitigating?
Arbor would be the best bid, apart from Arbor, Palo Alto and Fortinet have good solutions. As this is an ISP, I would prefer Arbor.
What is your experience regarding pricing and costs for Arbor DDoS?
The prices for Arbor DDoS are expensive. The licensing is subscription-based. From our sales department, they discuss that prices are very high.
What do you recommend for a securing Web Application?
That's one of the most critical questions any development team faces! Securing a web application requires a layered approach, not a single tool. Here is a quick breakdown of what to recommend: In...
 

Comparisons

 

Also Known As

Arbor Networks SP, Arbor Networks TMS, Arbor Cloud for ENT
No data available
 

Overview

 

Sample Customers

Xtel Communications
galaxyguitar.com, robertasinc.com, indiarunning.com, comprarenpr.com, idbasolutions.com, newgrip.com
Find out what your peers are saying about Arbor DDoS vs. SiteLock and other solutions. Updated: August 2026.
909,725 professionals have used our research since 2012.