Clean data without garbage or duplicate links

[sharminsumu86]

To put it simply, there are too many pages to explore on the Internet.

Some need to be crawled more often, others not at all. Therefore, we use a queue that decides the order in which URLs will be crawled.

One common problem with this step is crawling too many similar, irrelevant URLs, which can lead people to see more spam and fewer unique referring domains.

So what did we do?

To optimize the queue, we added filters that prioritize unique content, higher authority sites, and link farm protection. As a result, the system now finds more unique content and generates fewer reports with duplicate links.

Here are some examples of how it currently works:

To protect our queue from link farms, we check if a senegal telegram number database large number of domains are coming from the same IP address. If we see too many domains coming from the same IP, their priority in the queue is lowered, allowing us to explore more domains from different IPs and not get stuck on a link farm.
To protect sites and avoid polluting our reports with similar links, we check if there are too many URLs coming from the same domain. If we see too many URLs on the same domain, they are not all crawled on the same day.
To ensure that we crawl updated pages as soon as possible, URLs that we have not crawled before are given higher priority.
Each page has its own hash code that helps us prioritize crawling of unique content.
We take into account how often new links are generated on the source page.
We take into account the authority score of a web page and a domain.