はてなホットエントリー.download.js

const days = 365
const urls = ['', ...[...Array(days).keys()].map(i=>i+1).map(i=>new Date(Date.now() - 1000*60*60*24*i).toLocaleDateString('sv').replaceAll('-', '')).map(d => '/' + d)].map(path => 'https://b.hatena.ne.jp/hotentry/it' + path)
const htmls = await Promise.all(urls.map(url => fetch(url).then(r=>r.text())))

const docs = htmls.map(html => new DOMParser().parseFromString(html,'text/html'))

function countAndSort(arr) { 
    return Object.entries(arr.reduce((prev, curr) => (prev[curr] = ++prev[curr] || 1, prev), {})).sort((a,b) => b[1]-a[1])
} 

countAndSort(docs.flatMap(doc => [...doc.querySelectorAll('.entrylist-contents-domain>a>span')].map(s => s.textContent)))

blog_domains = [
    "hatenadiary.jp",
    "hatenablog.com",
    "hateblo.jp",
    "hatenablog.jp",
    "hatenadiary.com"
]

countAndSort(docs.flatMap(doc => [...doc.querySelectorAll('.entrylist-contents-domain>a>span')].map(s => s.textContent.toLowerCase())).filter(d => blog_domains.some(bd => d.endsWith(bd))).map(d => blog_domains.find(bd => d.endsWith(bd))))

[
    [
        "hatenablog.com",
        594
    ],
    [
        "hatenablog.jp",
        73
    ],
    [
        "hatenadiary.jp",
        49
    ],
    [
        "hateblo.jp",
        43
    ],
    [
        "hatenadiary.com",
        8
    ]
]

blog_domains = [
    "hatenadiary.jp",
    "hatenablog.com",
    "hateblo.jp",
    "hatenablog.jp",
    "hatenadiary.com",
    "impress.co.jp",
    "itmedia.co.jp"
]

countAndSort(docs.flatMap(doc => [...doc.querySelectorAll('.entrylist-contents-domain>a>span')].map(s => s.textContent.toLowerCase().split('/')[0])).map(d => blog_domains.some(bd => d.endsWith(bd)) ? blog_domains.find(bd => d.endsWith(bd)) : d))