CDB (.cdb)
.cdb file signature | application/octet-stream
MikroTik WinBox Connection Database (Address Book)
Magic Bytes
Offset 0
0D F0 1D C0
Sources: Wikipedia
Extension
.cdb
MIME Type
application/octet-stream
Byte Offset
0
Risk Level
Safe
Validation Code
How to validate .cdb files in Python
def is_cdb(file_path: str) -> bool:
"""Check if file is a valid CDB by magic bytes."""
signature = bytes([0x0D, 0xF0, 0x1D, 0xC0])
with open(file_path, "rb") as f:
return f.read(4) == signatureHow to validate .cdb files in Node.js
function isCDB(buffer: Buffer): boolean {
const signature = Buffer.from([0x0D, 0xF0, 0x1D, 0xC0]);
return buffer.subarray(0, 4).equals(signature);
}How to validate .cdb files in Go
func IsCDB(data []byte) bool {
signature := []byte{0x0D, 0xF0, 0x1D, 0xC0}
if len(data) < 4 {
return false
}
return bytes.Equal(data[:4], signature)
}API Endpoint
/api/v1/cdb
curl https://filesignature.org/api/v1/cdb
See the full API documentation for all endpoints and parameters.
Frequently Asked Questions
What is a .cdb file?
A .cdb file is a CDB file. MikroTik WinBox Connection Database (Address Book)
What are the magic bytes for .cdb files?
The magic bytes for CDB files are 0D F0 1D C0 at byte offset 0. These bytes uniquely identify the file format regardless of the file extension.
How do I validate a .cdb file?
To validate a .cdb file, read the first bytes of the file and compare them against the known magic bytes (0D F0 1D C0) at offset 0. This is more reliable than checking the file extension alone, as extensions can be renamed.
What is the MIME type for .cdb files?
There is no officially registered MIME type for .cdb files. Systems typically use application/octet-stream as a generic fallback when handling this format.
Is it safe to open .cdb files?
CDB (.cdb) 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.