@zeitnot In paid guest posting, you get paid for writing a guest post, whereas for paid links, you pay to the linking site. If you want organic links to your site you can try a tool called Postifluence. It's one of the best & affordable SEO tool I have ever used. It helps to find the top ranking guest posting websites and brings high-quality backlinks from there.

That's strange. Now since you have already used these tools, would recommend you to try Postifluence once. I am using it for backlinks and quite happy with the outcome. It builds 100% organic do follow links & it also helps me to upgrade my SEO strategy from time to time which is helping me to bring organic traffic to my website.

The easier way to increase the DA of your site is by adding good and trustworthy backlinks. You can use Postifluence to find authoritative sites and reach out to them for guest posting. Try this method! It really works.

An increase in spam scores may be caused by many reasons like:

• Links connected externally
• Bad links bought from fake websites
• Not getting relevant links from your niche sites, etc.

Try getting guest posts done on a credible site that can improve your ranking. You can use Postifluence to outreach guest-posting sites organically. It is a very useful tool. That's the best way I have found lately. Try it out!