01 · Operator
Who operates vkShare
- Company
- VK
- Type
- Social preview bot
- Official docs
- dev.vk.com
02 · Behavior
What vkShare does
When a link is shared on VK, the fetcher requests the page to build a preview. The user agent points to the documentation of VK's Share widget.
03 · Impact
Why vkShare matters for your site
If you allow it
- Builds link previews for shares on VK
- Requests are triggered by shared links
If you block it
- No value if your audience does not use VK
04 · Allow
How to allow vkShare
robots.txt
User-agent: vkShare
Allow: /Cloudflare
# Security › WAF › Custom rules › Create rule
Expression: (http.user_agent contains "vkShare")
Action: Skip › All Super Bot Fight Mode rules
# Also check Security › Bots: "Block AI bots" can block it regardless of robots.txt.WordPress
# WordPress serves a virtual robots.txt. Edit it with your SEO plugin:
# Yoast: SEO › Tools › File editor · Rank Math: General Settings › Edit robots.txt
User-agent: vkShare
Allow: /nginx
# nginx serves every user agent by default.
# Make sure no rule like this blocks it:
# if ($http_user_agent ~* "vkShare") { return 403; }Apache
# Apache serves every user agent by default.
# Make sure .htaccess has no rule like this:
# RewriteCond %{HTTP_USER_AGENT} vkShare [NC]
# RewriteRule .* - [F,L]05 · Block
How to block vkShare
Start with robots.txt. If vkShare keeps showing up in your logs, block it at your CDN or web server.
robots.txt
User-agent: vkShare
Disallow: /Cloudflare
# Security › WAF › Custom rules › Create rule
Expression: (http.user_agent contains "vkShare")
Action: BlockWordPress
# WordPress serves a virtual robots.txt. Edit it with your SEO plugin:
# Yoast: SEO › Tools › File editor · Rank Math: General Settings › Edit robots.txt
User-agent: vkShare
Disallow: /nginx
# In your server { } block:
if ($http_user_agent ~* "vkShare") {
return 403;
}Apache
# .htaccess
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteCond %{HTTP_USER_AGENT} vkShare [NC]
RewriteRule .* - [F,L]
</IfModule>06 · User agents
User agents we see for vkShare
The user agent published by the operator:
Mozilla/5.0 (compatible; vkShare; +http://vk.com/dev/Share)07 · Verification
Is it really vkShare?
vkShare’s operator publishes no IP ranges or hostnames, so requests cannot be verified. Treat the user agent as a claim, and watch your logs for unusual request rates.
FAQ
Questions about vkShare
What is vkShare?
It is VK's fetcher for links shared on the network, linked to the VK Share button documentation.
Should I block vkShare?
Blocking it can break link previews when your pages are shared on VK.
Last reviewed Oct 8, 2026