The Alexa Toolbar for Firefox

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• Alexa Traffic Rank: See how popular a website is.
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• Related Links: Find sites that are similar to the site you are visiting.
• Wayback: See how a site looked in the past.
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• Hot Pages & Searches: See what's popular on the web right now
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• Website Reviews: See what other people thought of this site or write your own review!

FREE. Customizable. Installs in seconds.

*System Requirements: Firefox: 3.0.9 - 4.0.*

scan website

You can start with Google's Safe Browsing Diagnostics: http://www.google.com/safebrowsing/diagnostic?site=www.example.com (replace www.example.com with your own site address). It will show whether Google found anything suspicious on your site.
 

 

 

 

 

Then you can analyze HTML/script code of your files on server. They should not contain anything that you didn't put there.

Then scan your server for any suspicious/new files and directories.

Then look through web server configuration. There could be unwanted redirects and error pages.

You might also want to take a look at my online tool called Unmask Parasites http://www.UnmaskParasites.com . It analyzes HTTP response and HTML code of web pages and highlights suspicious code (links, scripts, iframes and redirects). Google's Safe Browsing information is also included in Unmask Parasites results. Note, that the tool is still in beta and may not detect every security problem.

Avira AntiVir Personal 10.0.0.611

Years ago, a free antivirus was often a synonym of poor protection. Nowadays, thanks to programs like Avira AntiVir Personal, this perception of free antivirus has improved a lot.

Avira AntiVir Personal is the free – for personal use – version of Avira Antivir Premium; this means there are a few advanced features unavailable, like the virus filter for email or for web browsing, but the program is as powerful and efficient as its big brother.

Avira AntiVir Personal installs in a few seconds and starts protecting your system in real time right away. It includes all the tools and options you would expect from an antivirus these days, such as different types of scan, support for scheduling, automatic updates, and a quarantine area for suspicious files.

On the downside, Avira AntiVir Personal is let down by a somewhat rough interface that feels like it was designed ten years ago and never restyled: simple to use, but too plain.

Looking for an efficient, uncomplicated antivirus tool? Avira AntiVir Personal may be a good choice

Download

Simple and effective free antivirus

AVG Anti-Virus is one of the handiest free antivirus systems available for personal users.

Despite being a free security tool, AVG Anti-Virus is as good as any paid app. It features a bunch of dedicated modules to protect you from antivirus, spyware, rootkits and spam, and also includes the so called LinkScanner – an extra layer of protection that checks search results and web links to make sure they’re safe.

One of the best things about AVG Anti-Virus is that it offers neat, effective protection while staying silently minimized in your system tray, without guzzling system resources and of course, without constantly bothering you with warning windows or update messages. Being the free version of a complete program, AVG Anti-Virus shows the odd nag screen encouraging you to buy AVG Professional, something which may annoy more sensitive users.

AVG Anti-Virus has dramatically improved with its latest version. It features a nicely designed, more user-friendly interface, and includes a desktop widget from which you can scan the system or update the virus database. Of course, you still have the same three types of scan: full system, selected files and folders and anti-rootkit. AVG Anti-Virus also lets you schedule scans for a certain day and time.

The whole AVG Anti-Virus package should be enough to ensure you're not infected with any virus. The program also integrates seamlessly with Windows Explorer, allowing you to scan files from their context menus. AVG Anti-Virus's database is automatically updated on a daily basis, so you're always protected from even the most recently discovered threats.

AVG Antivirus remains a perfect security solution for the average computer user, providing a powerful weapon against viruses

Download AVG Anti-Virus Free Edition 2011 10.0.1204

AVG Anti-Virus is virus free

We have analyzed the latest version of AVG Anti-Virus with 30 antivirus engines and it is virus free. See analysis results.

Free Online Virus Scan

Version: 7.1

Think your PC is infected? HouseCall can quickly identify and fix a wide range of threats including viruses, worms, Trojans, and spyware. It is now faster, more powerful and browser independent!
WHAT'S NEW?- Full scan and custom scan options, in addition to Quick Scan.
- Support for 64-bit, Windows 7, and Windows 7 SP1.

Download HouseCall 7.1 (32-bit) | Download HouseCall 7.1 (64-bit)

Try Version 7.2 Beta!

WHAT'S NEW? (Detail)- Enhanced user interface that features a "select all" option for restoring files, detected file names in scan results, and an updated scanning screen design.
- Support for 64-bit, Windows 7, and Windows 7 SP1.
- Ability to scan for more threats, including those exploiting Windows Management Instrumentation (WMI).
- Better detection rates and improved overall scanning performance.
- Improved compatibility with Internet Explorer 9.
- More powerful performance during full-system scans.

Download HouseCall 7.2 Beta (32-bit) | Download HouseCall 7.2 Beta (64-bit)

avast! Internet Security 6

Maximum protection, now powered by new avast! 

 SafeZone™ technology

• Protects your sensitive online shopping and banking transactions
• Ensures your safety on social networks (Facebook, etc.) or IM chats
• Blocks hacker attacks, to protect your identity
• Introductory price package – save up to $50!
• http://www.avast.com/internet-security

avast! Internet Security 6

Maximum protection, now powered by new avast! 

 SafeZone™ technology

• Protects your sensitive online shopping and banking transactions
• Ensures your safety on social networks (Facebook, etc.) or IM chats
• Blocks hacker attacks, to protect your identity
• Introductory price package – save up to $50!
• http://www.avast.com/internet-security 

AVG MobilationTM for AndroidTM Smartphones & Tablets

Following the enormous success of AVG Mobilation Anti-Virus Free for smartphones, AVG has now released state-of-the-art security software designed specifically for Android tablets.
Android tablet users can now enjoy peace of mind knowing their valuable data and device are protected thanks to cloud-based technology that’s simple to use, always up to date, and light on device resources and battery life.
AVG Mobilation for Android tablets scans apps, settings, data and media files in real time for viruses and other malware. And if your tablet gets lost or stolen, it can be traced remotely and wiped to protect your privacy. The backup feature also protects contacts, call logs, bookmarks, messages and applications installed to an SD card. Furthermore, the ‘app locker’ can protect any app passwords kept on your phone to prevent children from using certain applications or accessing your data.
Owners of both Android smartphones and tablets can download the product from the Android Market. Simply search for ‘AVG’ and download directly to your device.

Read the press release

The most popular anti-virus for Android™ devices

Security

• Scan whole device and identify and remove viruses with a simple click
• Automatic scans can be run weekly, daily, or on demand
• Check apps for malware before downloading from app stores
• Check web content, emails, and SMS for malware before downloading to device

Theft protection

• Locate lost or stolen device using GPS
• Create and display onscreen message remotely
• Lock device and wipe content
• Manage applications remotely

SMS spam protection

• Basic protection from SMS spammers

Download from Android Market