What is the best Software that extracts numbers from websites?

Hello every one what i need is a software that i give it a website and tell that software to extract all the words or numbers that start with specific characters. For example extract all the numbers that start with "876" or all the words that start "joh". If it has other options like containing... show more Hello every one what i need is a software that i give it a website and tell that software to extract all the words or numbers that start with specific characters. For example extract all the numbers that start with "876" or all the words that start "joh".
If it has other options like containing specific character or ending with them it would be great.
But to me the most important thing is extracting all the existing numbers that start with certain characters.
Thanks in advance every one.
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