VERIFICATION SUCCESS RATE [need help]
need help please,
I have been running this campaign for 1 week, but why is it that out of 10,000 to 30,000 submitted, only 250 are verified?
I have made sure to use a private proxy ipv4, I also use 0captcha and XEVIL services, for email I use personal hosting, there are approximately 200 articles with spintax format, my verification settings are set every 3 hours
fyi: the campaign I run all engines, except Redirect, Short Url Pingback
I have been running this campaign for 1 week, but why is it that out of 10,000 to 30,000 submitted, only 250 are verified?
I have made sure to use a private proxy ipv4, I also use 0captcha and XEVIL services, for email I use personal hosting, there are approximately 200 articles with spintax format, my verification settings are set every 3 hours
fyi: the campaign I run all engines, except Redirect, Short Url Pingback

Comments
You've got a lot of "already parsed" messages in the logs - this means your site list contains duplicates.
It does not look like a clean verified list with duplicates removed. The rate of new links being verified is way too slow. So yes, it does look like you've wasted your money on this list.
A good verified site list should be able to make atleast 100 new verified links per minute. (Contextuals and profiles at 300 threads).
With other settings configured such as scheduled reposting, my servers can go as fast as 400-500 verified links per minute. Which equates to over 500,000 links per day per server.
That is what the software is capable of if you feed it a good verified list.
what factors/variables determine such good results?
I have tried to maximize my campaign by using good articles, ipv4 proxy, 3 layers of captcha (gsa captcha breaker, XEVIL, 0captcha), email using my own hosting so what else needs to be maximized?
You just need need more working link sources. Buying site lists from different list sellers is one way to do this. The better way is to scrape them yourself, test them and build your own working verified list. You will find sites that most list sellers won't be selling in their lists.
If you want to get even more link sources, then take a look at the new sernuke engines: https://forum.gsa-online.de/discussion/33465/sernuke-custom-gsa-ser-engines I've added a few thousand new sites to my site list from just these engines alone and I'm still scraping and finding more everyday.
GSA SER High VPM.mp4 That's one of my installs running close to 400 vpm using a list of around 6000 domains. Scheduled posting enabled - runs quicker by reposting to same accounts.
For scraping new sites I've buit my own bots with zennoposter that scrape Google, duck duck go, aol, ecosia, brave, yandex and seznam search engines. There are many more search engines out there that I can scrape. I'm only running 30 bots that target a small group of engines.
This is where your biggest opportunity is right now. You need a good scraping solution and also need more engines that you can scrape sites for. The more sites you have in your list, the easier it will be to rank when you start building your tiers with them.
For site lists, this is probably one of the better ones out there: https://gsaserlists.com/ They also include sites for the new sernuke engines. Their verified list does contain working sites, so you should see an increase in speed when using it.
because of listening to your advice I just decided to buy GSA SER Link Lists
the question is, do I have to use sernuke or not?
Personally I have high resource needs as I have multiple installs running software at high threads and most proxy providers will limit your threads and bandwidth. The only provider I found that has truly unlimited threads/bandwidth is privateproxy.me. I use their static datacenter proxies and got them at 50% off with code: 50OFF. Their starter package with 13 proxies is more than enough for running 1 gsa. Proxies are fast.
For RDP I'm using Terminals which is free.
Once you have the licenses from sernuke, you'll be able to build links on a lot more sites than just using the default engines. Links from more unique domains will lead to higher authority for your money sites if you power up the T1's with tiered links.
The more sites you can build links on, the easier it will be to rank your projects. Of course, you will still need to get your links indexed in Google to see results in rankings. But that's another challenge.
can the backlink creation process run? and can increase my VPM from before
The gsa ser list should give you much better VPM than your previous list as it contains working sites - dead sites are frequently removed from their list and new sites are added automatically.