How to cache links

Hi

We are building links using guest postings but these links are taking too much time in caching.

We have used onehourindexing service but still links aren't caching.

Even some links in high authority sites aren't cached.

Please provide efficient method to quickly cache the links.

That is not a new question for the industry, isn't it?
Use Ahrefs account to download the whole links profiles of your competitors.
Then duplicate it.