Company · checkout referrals
zerosum.so
Ranked #17,849 of 22,010 companies sending people to pay, with 107 checkout visits from April to September 2026.
uncategorisedno global rank
#single-checkout
#17,849
of 22,010 by checkout visits
107
visits to checkout pages, six months
18
visits a month, on average
1
checkout used
All through Polar
Where its buyers pay
- Polar107100% of its checkout traffic · #586 among everyone sending to Polar
Trend, April to September
0
Apr
0
May
0
Jun
69
Jul
38
Aug
0
Sep
Peak in July at 69 visits.
zerosum.so sent 107 visits to checkout pages over six months, about 18 a month, which puts it at #17,849 of 22,010 senders we traced.
100% of that went through Polar. It uses a single checkout, so its buyers all pay through Polar.
Similarweb files it under uncategorised. It isn’t one of the AI products we classified by hand, so it doesn’t count toward the AI total.
Visits are modelled third-party estimates, not revenue. Read what this can’t tell you before you act on a single number.
Free dataset
Every company, in one CSV.
The top 500 senders for each of 15 checkouts, plus all 22,010 companies ranked. Filter by niche and compare.