Five common types of links in SEO, and how to do reciprocal links in SEO

04 Dec,2025kjhkhlk0
Many webmasters place great emphasis on reciprocal links. High - quality reciprocal links can not only transfer weight (PR) to the website, attract spiders, and boost inclusion, but also bring some targeted traffic. However, it's not an easy task to exchange for or find the required reciprocal links. There may be issues related to the website itself or the industry, and it's always difficult to find suitable ones.
Now, let's talk about five common types of links in SEO!

1. Internal Links

Internal links are actually links between each web page. But from the best perspective, to maximize the value of internal links, you need to carefully select the web pages, that is, decide which pages should be linked to each other. The anchor text of internal links is usually a keyword. For example, if I want to create an anchor text link for search engine optimization, then you'll know which web pages making links on can have a greater impact on ranking.

2. External Links

For SEO, external links are the most frequently mentioned term. From the perspective of search engines, they hope that external links are natural links with high recommendation value. Therefore, it's not an anchor text for a specific target keyword on an article content page. Theoretically, it should be an anchor text link highly relevant to the target page content, which can further elaborate on the content of that page and help visitors better understand the target page content.

3. Reciprocal Links

When two website owners participate in linking to each other's websites via hyperlinks, both benefit from the mutual links. This type of linking method is called reciprocal links. Reciprocal links are usually a mutual - linking relationship between two websites or two non - affiliated websites, aiming to promote business or any other goals.

4. Backlinks

Backlinks, also known as reverse links. In the SEO optimization process, it's relative to two web pages. For example, for web page D, if a certain web page C creates a link to web page D, whether it's on the same site or different sites, this link on web page C is a backlink for web page D.

5. Dead Links

Dead links are a problem that every webmaster will encounter during website optimization. A large number of dead links on a website are unfriendly to search engines. They can lead spiders into a dead end and affect the website's quality. From the user's perspective, opening a link leads to a non - existent error page (a page with a return status code of 404). Most users will close it, which not only affects the user experience but also directly causes user loss. Dead links can cause an increase in the website's bounce rate, a sudden drop in inclusion, a decline in ranking, and a loss of weight. Therefore, it's very necessary to regularly check for dead links on the website.
For enterprises, reciprocal links are usually handled by professionals. So, if you want to judge whether a reciprocal link is good, what dimensions can be used for evaluation?

1. Quantity

More reciprocal links don't necessarily mean better. The best situation for reciprocal links is that the websites we exchange links with have high quality. For example, they have high weight. Even if you have such resources and many high - weight and highly relevant websites are willing to exchange, you shouldn't have too many. It's recommended to control the number between 15 - 25. For new websites, it's suggested to start with 5 - 8. If you have a large number of reciprocal link resources, you need to compress them. If you have few resources, you can buy some high - quality ones first.

2. Quality

The quality of reciprocal links is a broad topic. We all know that the quality of reciprocal links is important. So, how exactly can we judge the quality?
  • Relevance: Relevance means that if I'm in the equipment business, the reciprocal links should also be in the equipment ecosystem. If I'm in the management consulting business, the reciprocal links should also be in the consulting ecosystem. If they are completely unrelated, even if the other party has a very high weight, it's of no use to our website.
  • Weight: Weight is an intuitive standard for judging the quality of reciprocal links. It can be the PR value of the page or the industry reputation. For example, some member websites cannot be crawled by Baidu spiders due to the member system. But some member websites do very well in the industry. In this case, these websites may not have much weight, but they have high value, and it's good to exchange reciprocal links with them.
  • Link Farms: A link farm is a collection of sites that deploy cross - links. If it's a group enterprise and has built many websites, it's recommended that the enterprise build its own link farm, exchange reciprocal links in a cross - way, and distinguish between primary and secondary links. This is okay for both the enterprise's new and old websites. But if you want to exchange reciprocal links with other link farms, it's not recommended. Cross - link farms that are not under your control cannot guarantee stability. If a certain link has a problem in the middle, it will affect the weight transfer.

3. Safety

Risk management of reciprocal links is very important. If the website we exchange reciprocal links with has a high weight achieved through cheating methods, the punishment will also affect our website, and the consequences will be very serious. For large platforms like Baidu, they don't pay much attention to the speed of handling punished websites, and it's basically impossible to appeal against the punishment. In this case, when selecting reciprocal links, we must choose carefully and strictly. Once a reciprocal link is established with a cheating or banned website, all previous SEO efforts will be in vain.
With the continuous de - weighting of external links, reciprocal links now play a less important role than they did in the past.
When choosing reciprocal links, prioritize controlling safety risks and then focus on quality. For new websites, reciprocal links can give a boost to rankings. For old websites, maintaining a certain update frequency is sufficient.
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