upenn.edu vs zsl.org
Market traction comparison · Updated Jul 2026
| upenn.edu | zsl.org | Leads | |
|---|---|---|---|
| Monthly Visits | 9.2M | 171.6K | upenn.edu |
| Bounce Rate | 44.5% | 42.8% | zsl.org |
| SEO & Keywords | 30 | 30 | Tie |
| Domain Age | — | 29y 8m |
upenn.edu leads in 1 of 3 dimensions, while zsl.org leads in 1.
Growth Momentum
| upenn.edu | zsl.org | Leads | |
|---|---|---|---|
| Monthly Visits | 9.2M | 171.6K | upenn.edu |
| MoM Change | +22% | +1% | upenn.edu |
| Avg. Session | 3m34s | 0m59s | upenn.edu |
| Pages / Visit | 5.3 | 2.1 | upenn.edu |
Growth Momentum · Insight
upenn.edu is growing +22% while zsl.org grows +1%. At current trajectory, upenn.edu could close the traffic gap within 4 months.
Acquisition Strategy
| upenn.edu | zsl.org | Leads | |
|---|---|---|---|
| Primary Channel | Search 44% | Search 45% | |
| Bounce Rate | 44.5% | 42.8% | zsl.org |
| SEO & Keywords | 30 | 30 | — |
Keyword Overlap Rate: 13%
Acquisition Strategy · Insight
upenn.edu acquires users primarily through Search (44%), while zsl.org relies on Search (45%). This reflects fundamentally different go-to-market strategies — upenn.edu's higher direct traffic suggests stronger brand recognition or product-led growth, while zsl.org's search reliance means growth is more scalable but more vulnerable to algorithm changes.
Business Maturity
| upenn.edu | zsl.org | Leads | |
|---|---|---|---|
| Domain Age | — | 29y 8m | |
| Registered | — | Dec 1996 | |
| Expires | — | Dec 2027 |
Market Position
| upenn.edu | zsl.org | Leads | |
|---|---|---|---|
| Global Rank | #5.4K | #262.5K | upenn.edu |
| Category Rank | #19 | #74 | upenn.edu |
upenn.edu only
zsl.org only
Market Position · Insight
Each has untapped markets the other serves: upenn.edu could expand into Philippines, Indonesia, while zsl.org could target Canada, China.
Key Takeaways
- •upenn.edu is growing +22% while zsl.org grows +1%. At current trajectory, upenn.edu could close the traffic gap within 4 months.
- •upenn.edu acquires users primarily through Search (44%), while zsl.org relies on Search (45%). This reflects fundamentally different go-to-market strategies — upenn.edu's higher direct traffic suggests stronger brand recognition or product-led growth, while zsl.org's search reliance means growth is more scalable but more vulnerable to algorithm changes.
- •upenn.edu receives 53.9x more monthly traffic than zsl.org (9.2M vs 171.6K).
- •Both are growing, with upenn.edu accelerating faster at +22% vs +1%.
- •upenn.edu keeps visitors significantly longer (3m34s avg session vs zsl.org's 0m59s), suggesting deeper product engagement or stickier content.
- •They share 7 keywords (13% overlap), indicating direct search competition.
You've seen the gap. Now steal the playbook.
A Growth Teardown reverse-engineers exactly how each product grows — traffic sources, backlink strategy, keyword gaps, and scored action items you can copy this week.
Related Comparisons
Report based on data from July 2026