Welcome to the detailed analysis for phash.org. This domain is officially recognized as pHash.org: Home of pHash, the open source perceptual hash library. According to their official web presence, their primary focus is: "Detailed SEO and authority metrics for phash.org. Phash currently holds an estimated domain authority score of 46/100 in the .ORG namespace based on our global index mapping.".
"A perceptual hash is a fingerprint of a multimedia file derived from various features from its content. Unlike cryptographic hash functions which rely on the avalanche effect of small changes in input leading to drastic changes in the output, perceptual hashes are "close" to one another if the features are similar."
"Perceptual hashes must be robust enough to take into account transformations or "attacks" on a given input and yet be flexible enough to distinguish between dissimilar files. Such attacks can include rotation, skew, contrast adjustment and different compression/formats. All of these challenges make perceptual hashing an interesting field of study and at the forefront of computer science research."
"pHash is an open source software library released under the GPLv3 license that implements several perceptual hashing algorithms, and provides a C-like API to use those functions in your own programs. pHash itself is written in C++."
"04.23.2013 pHash 0.9.6 fixes some compilation errors and warnings, as well as updates to the automake files to support building on Gentoo."
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Yes, according to our latest analysis, we detected a valid SSL certificate ensuring a secure connection.
As of July 20, 2026, phash.org holds an estimated domain authority score of 91/100 based on our VisitRank tracking algorithms.
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