TL;DR: Link exchange can get a bootstrapped startup backlinks without a budget, but in our audit of 131 exchanged links, 14.5% stopped delivering value within about 14 months. Run 10 checks on the partner's page before you place their link, then an 11th check 7 days later. Say no to open-publishing platforms, and accept insertions into pages Google has already indexed only. The full data is in our 14-month link exchange study.
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