: Tells Google to only return results that are Microsoft Excel files (.xls).
So, how can you share files securely? Here are some best practices:
However, files with email information can also pose risks:
: Searches for spreadsheets containing login credentials. filetype xls inurl email.xls
Add a robots.txt file to disallow crawling of sensitive directories. However, note that this is a voluntary standard; malicious actors ignore it, and search engines may still index files linked from external sites.
For further reading on advanced search techniques, you can explore the Google Hacking Database (GHDB) or community-curated lists on or show you how to secure your own website from being indexed?
Penetration testers must obtain written authorization before using dorks against a target organization. Scanning without permission is illegal in most jurisdictions. : Tells Google to only return results that
: Competitors or threat actors can scrape these files to build comprehensive contact databases.
As of 2025, Google has reduced the effectiveness of some dorks due to security hardening, but filetype: and inurl: still work. Results vary depending on your location and Google’s algorithms.
This query is a combination of Google search operators designed to find specific types of files on the internet. Add a robots
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If you are auditing a network or securing your own site, I can help you write automated to check your domain for exposed files, or draft a robots.txt configuration tailored to your server structure. Share public link
<FilesMatch "\.(xls|xlsx)$"> Order Allow,Deny Deny from all </FilesMatch>