Skype user data file (.dbb)
.dbb file signature | application/octet-stream
Skype user data file (profile and contacts)
Magic Bytes
Offset 0
6C 33 33 6C
Sources: Gary Kessler
Extension
.dbb
MIME Type
application/octet-stream
Byte Offset
0
Risk Level
Safe
Validation Code
How to validate .dbb files in Python
def is_dbb(file_path: str) -> bool:
"""Check if file is a valid DBB by magic bytes."""
signature = bytes([0x6C, 0x33, 0x33, 0x6C])
with open(file_path, "rb") as f:
return f.read(4) == signatureHow to validate .dbb files in Node.js
function isDBB(buffer: Buffer): boolean {
const signature = Buffer.from([0x6C, 0x33, 0x33, 0x6C]);
return buffer.subarray(0, 4).equals(signature);
}How to validate .dbb files in Go
func IsDBB(data []byte) bool {
signature := []byte{0x6C, 0x33, 0x33, 0x6C}
if len(data) < 4 {
return false
}
return bytes.Equal(data[:4], signature)
}API Endpoint
/api/v1/dbb
curl https://filesignature.org/api/v1/dbb
See the full API documentation for all endpoints and parameters.
Frequently Asked Questions
What is a .dbb file?
A .dbb file is a Skype user data file file. Skype user data file (profile and contacts)
What are the magic bytes for .dbb files?
The magic bytes for Skype user data file files are 6C 33 33 6C at byte offset 0. These bytes uniquely identify the file format regardless of the file extension.
How do I validate a .dbb file?
To validate a .dbb file, read the first bytes of the file and compare them against the known magic bytes (6C 33 33 6C) at offset 0. This is more reliable than checking the file extension alone, as extensions can be renamed.
What is the MIME type for .dbb files?
There is no officially registered MIME type for .dbb files. Systems typically use application/octet-stream as a generic fallback when handling this format.
Is it safe to open .dbb files?
Skype user data file (.dbb) files are generally safe to open. They are classified as low risk because they primarily contain data rather than executable code. However, always ensure files come from a trusted source.