Lifespan of a successful blog on average

What do you guys think about the average lifespan of a succesful blog ? I mean how many years can a blog keep earning good on average . I mean most of the good blogs I used to follow which were very popular at one point of time are extinct now.
A successful blog usually lasts at least 5 years. If the owner maintains strong consistency, its lifespan can extend to 8–10 years.
 
I’ve noticed my old sites only kept rolling as long as I treated them like living things instead of time capsules. The moment I stopped tweaking stuff or trying new content angles, they started collecting dust fast. What helped me most was checking in on what readers actually responded to and pruning dead sections so the whole thing didn’t feel stuck in the past.
 
depends on niche some blogs last 2 to 3 years after google updates others stay alive 7 to 10 years if content keeps getting updated and links still coming in most old sites you saw gone just stopped updating and lost rankings.
 
I’ve found that mixing up formats every year or so really gives older blogs a much-needed shot in the arm. Podcasts, short videos, interactive polls - even simple timeline posts about industry changes keep readers sticking around. Keeping up with Google’s 2026 SEO quirks is a pain, but things like optimizing page speed and updating old links still seem to move the profitability needle the most for me.
 
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