sure, where's the problem?
just fill the following data structure to HTML::Template:

SITES => [
  {
    URL => '...',
    TAGS => [
      { TAG_NAME => 'foo', TAG_WEIGHT => 23 },
      { TAG_NAME => 'bar', TAG_WEIGHT => 42 },
    ],
  },
  {
    # second url...
  },
]
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