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Try running SpIDer Gate with the -dbg: 2 parameter. To do this, click Start-> Run, type in the string provided below:

"C:\Program Files\DrWeb\spidergate.exe" –dbg:2

Click Ok.
If the problem persists, please contact the technical support service.

No, SpIDer Gate is an HTTP-monitor. It performs the following tasks:

  • Scan incoming and outgoing HTTP-traffic
  • Intercept all HTTP-connections
  • Filter Data
  • Block loading infected pages automatically in any browser
  • Scan archived files
  • Protect from phishing and other dangerous online resources.

At the same time the firewall protects your PC or network from unauthorized access.

Thus, SpIDer Gate and the firewall must operate simultaneously on your computer to protect your system against viruses and network attacks.

No. SpIDer Gate operates independently of the programs that use the Internet (including browsers).

Dr.Web anti-virus engine is so fast that SpIDer Gate won’t delay loading of web-pages or slow-down file transfers.

For version 5.0:

  1. Increase log file size up to 5 Megabytes. Right-click on the Dr.Web icon in the notifications area, select SpIDer Gate–>Settings, in the next window proceed to the Log tab and modify the File size limit field value.
  2. Right-click on the Dr.Web icon in the notifications area and select SpIDer Gate ->Disable.
  3. Press Start–>Run, copy one of the strings below to the Run field and launch SpIDer Gate:
    • "C:\Program Files\DrWeb\spidergate.exe" -dbg — enable verbose logging,
    • "C:\Program Files\DrWeb\spidergate.exe" -dbg -dbg — debug logging.

Version 6.0

Right-click on the Dr.Web icon in the notifications area and select SpIDer Gate–>Settings from the list (if this item is unavailable, you should first switch to the Administrator mode). In the next window, open the Log section and use the slider to set the Extended mode. Press Ok to confirm the changes made.

SpIDer Gate

Further, if required, you can reproduce the problem that must be analysed using the extended report. Please keep in mind that the Debug log is not always required because redundant information might complicate troubleshooting.

It is not recommended to disable the SpIDer Gate HTTP monitor because nowadays a lot of malware is distributed via infected websites. There are many script viruses and exploits that can cause harm to the system before they are saved to your hard drive and, consequently, detected by the SpIDer Guard® file monitor.

If disabling HTTP monitor is still necessary, right-click on the Dr.Web icon and in the next menu, select SpIDer Gate –> Disable. When anti-virus self-protection screen appears, type digits from the picture into the string and click Disable SpIDer Gate.

Right-click on the Dr.Web icon in the system tray and select SpIDer Gate-> Disable in the context menu.

Caution! It is not recommended to disable the HTTP-monitor SpIDer Gate because nowadays a lot of malware is distributed via infected web sites. There are many script viruses and exploits that can harm the system before they are saved to your hard drive and, consequently, detected by the file monitor SpIDer Guard.

Since SpIDer Gate utilizes the Dr.Web engine and databases, it is updated automatically along with other anti-virus modules.

As other modules of the program Dr.Web, SpIDer Gate features the same anti-virus engine and uses the same virus databases and therefore is updated along with other modules.

The red icon indicates that SpIDer Gate is disabled. To activate it, right click on the Dr.Web icon in the notification area. In the menu, hover over the SpIDer Gate item and in the drop-down list select Enable.

If the icon remains red, you have two options:

  • Application error – in this case you need to contact the Technical support service.
  • Your license does not cover SpIDer Gate. In this case, it is recommended to remove the component: Go to Start-> Settings-> Control Panel-> Add and Remove Programs, find the Dr.Web anti-virus on the list, click Modify and follow the wizard's instructions to disable this component.

The unique Dr.Web anti-virus engine allows SpIDer Gate to scan traffic so quickly that you will never notice any delay when viewing web pages and downloading files from the Internet.

If you believe that SpIDer Gate has mistakenly blocked a respected site, please let us know through the form on our website.

If you need to access a suspicious site, right click on the Dr.Web icon in the system tray and in the context menu select SpIDer Gate-> Settings. Clear the Block known source check box and press Ok.

Caution! Disabling this option is not recommended, because pages from all sites, including potentially dangerous ones will be loaded without a corresponding warning.

SpIDer Gate's log file name is spidergate.log. The file is located in the C:\Documents and Settings\Your_user_name\DoctorWeb folder.

SpIDer Gate is compatible with all web-browsers.

Dr.Web anti-virus engine is so fast that SpIDer Gate won’t delay loading of web-pages or slow-down file transfers.

The Speed balance option allows you to adjust the amount of CPU time utilized to scan Internet traffic. The higher the scanning priority, the more CPU resources it will use, but it will help maintain high speed connectivity. Low priority results in low CPU load and slower network communication speed. Changing the default value usually is not required.

In fact, the component does not consume traffic. The component checks it while passing it through itself. It processes as much traffic as is generated by the applications that have accessed the Internet and the data that has been received/sent over the network.

Technically, it looks like this:

To check traffic, the anti-virus installs its Internet traffic filters in the protected system and presents itself as a proxy. This filter must be the very first one so that malware cannot process the traffic before it does. For example, in order to conceal that it is transferring data. Third-party monitoring systems also install similar counting filters, but they process traffic after the anti-virus filter because such filters always work consistently. That's why the dwnetfilter process will always be seen as the main consumer of traffic.

On its own initiative, the dwnetfilter component does not connect to the Internet, it only intercepts connections from other applications.

To exclude the false effect that the dwnetfilter component is consuming traffic, you need to exclude it from your traffic control program, if this option is available. It makes no sense to track application traffic separately or their total traffic via the proxy (dwnetfilter).

One of SpIDer Gate’s tasks is to inform users that visiting some websites is dangerous or undesirable, for reasons that include the presence of “pirated” content. Dr.Web informs users about such websites because they are accompanied by malicious programs. Websites are included in the so-called Dr.Web “anti-piracy” database only on the basis of allegations made by content copyright holders. Each allegation is verified by Doctor Web’s lawyers before the decision is made to include the corresponding URL in the database. When users receive SpIDer Gate notifications concerning the undesirability of visiting pirated websites, they are getting objective, legally considered information about intellectual property infringement. Thus, Doctor Web helps users of its products:

  • avoid becoming the victims of criminals, who for their own selfish ends use others’ works and trademarks, and the fruits of others’ intellectual labours, for illegal purposes;
  • avoid potential criminal indictment for downloading, using, and further distributing pirated content;
  • protect PCs against infections occurring as a result of downloading unlicensed content that is accompanied by malicious programs.

Users make their own decisions as to whether it is worth visiting the websites they have been notified about. The SpIDer Gate component can be enabled or disabled at their discretion.

Click on the Dr.Web icon in the system tray.


Open the Dr.Web Security Center.


Windows administrator permissions are required for changes to be made to Dr.Web’s settings. Click on the padlock icon to provide them.


Confirm the system prompt to elevate privileges to those of an administrator.


Click on "Exclusions".


Click on "Websites".


Add the URLs to which you want to allow access. After entering a site address, click on the "+" button.


To add a specific site to the list, enter its address (for example, Access to all the resources located on this site, will be allowed.

To allow access to sites whose address contains a specific text, type the following text in the field. Example: if you enter the text "example", access to,,,, etc., will be allowed;

To allow access to a specific domain, specify the domain name with the symbol ".". In this case, access to all the resources on that domain will be allowed. If you use the symbol "/" when specifying a domain, the part of the substring to the left of the character "/" will be considered the domain name, and the part to the right of the symbol—the part of the allowed address on this domain. Example: if you enter the text, the following addresses will be allowed:,, etc .;

To exclude certain sites from scanning, enter the corresponding mask. Masks are added in the format: mask://...

The mask specifies the name pattern:

  • the symbol "*" replaces any, possibly empty, sequence of characters;
  • the symbol "?" replaces any, including empty, but only one symbol.


mask://*.ru/ — all sites in the .ru zone will open;

mask://mail — all sites containing the word "mail" will open;

mask://???.ru/ — all sites in the .ru zone whose names consist of 3 or more characters will open.

When added onto the list, an entered string can be converted to the universal form. For example, will be converted to


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