During the National Day and Mid-Autumn Festival holiday, I suddenly came up with the idea of letting visitors fill in friend-link applications themselves, with the program automatically reviewing them; every day it automatically inspects friend links on a schedule, releasing those that meet the criteria and hiding those that do not.
This update added the following module features: domain-related utility classes—able to query domain whois information, registration time, and validate domain legality; multi-threaded execution of the checking logic; Spring scheduled tasks; integration of Alibaba Green Network (Lüwang) content detection; automatic email sending.
Friend-link application entry: https://www.neilren.com/link/register
Open-source code: https://github.com/NeilRen/NEILREN4J
Overview of the inspection logic:
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Check the domain registration time; older than 6 months is considered passing.
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Check whether the other site has a backlink.
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Check the content of the other site’s homepage, integrating Alibaba Green Network’s content detection.
Points of reference for everyone: sending email via JavaMail, domain whois query, multi-threaded execution, Spring scheduled tasks, and Alibaba Green Network SDK integration.