According to section 194c and section 194j of the income tax act, TDS has to be deducted on contractors and professional respectively at the prescribed rates according to the provisions of the Act
The term professional means any person who acquires specialisation in any field such as science,technology, commerce, administration and so on
Having regard to the above words, we can infer that the term "Web Designing" falls under the category of Professionals
Hence, according to the Act, TDS on Professional, in this case web designer, shall be applicable u/s 194J subject to the provisions of the Act