又拍云cdn加速网站访问

graph TB;
    A[blog.ploughman.top]
    B[ploughman.b0.aicdn.com]
    C[b.ploughman.top]
    D[qiao.dev]
    E[weihai4099.github.io]
    A--CNAME-->B;
    B--CDN回源-->C;
    C--nginx反代-->D;
    D--CNAME-->E;