May 2026
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Global Rank
#820,178
92,471Showing Similarweb estimated data.
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Bounce Rate
47.03%
Pages per Visit
1.89
Avg Visit Duration
00:00:38
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Top 10 optics4kids.org Competitors
The Top 10 Sites Like optics4kids.org in May 2026 are ranked by their affinity to optics4kids.org in terms of keyword traffic, audience targeting, and market overlap
Contact Us Or, Send us an Email Ask above to be placed on our Magic Eye Mailing List! (We email a "special" 3D image several times a year, usually near holidays). Address Magic Eye Inc. P. O. Box 1986 Provincetown, MA 02657 Hours: Monday—Friday: 10:00AM–6:00PM Phone: 508-487-8484 Email: 3d@magiceye.com
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Bounce Rate
34.99%
Pages per Visit
2.31
Avg Visit Duration
00:00:40
Similarity Score
100%the illusions index is a fully searchable curated collection of illusions brought to you by the centre for the study of perceptual experience.
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Global Rank
#264,375
124,670Bounce Rate
38.37%
Pages per Visit
5.68
Avg Visit Duration
00:00:55
Similarity Score
95%Collection of logic puzzles, riddles, optical illusions and games.
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Global Rank
#1,427,797
34,225Bounce Rate
40.96%
Pages per Visit
1.65
Avg Visit Duration
00:00:19
Similarity Score
92%Step into the World of Illusion! A unique attraction offering entertainment, learning, and fun for all ages. Plan your visit now.
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Bounce Rate
64.28%
Pages per Visit
1.99
Avg Visit Duration
00:00:47
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89%Here’s a brain teaser for you: What would two-sided dice look like? How about one-sided dice? Think about those for a moment. The answers are below, but first let’s look at some more co…
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Global Rank
#720,456
167,361Bounce Rate
40.38%
Pages per Visit
1.93
Avg Visit Duration
00:00:43
Similarity Score
87%physics news, reference, education articles, job board, physics fun, and more. most popular physics and astronomy online portal since 1995!
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Global Rank
#1,198,657
94,018Bounce Rate
56.05%
Pages per Visit
1.37
Avg Visit Duration
00:00:21
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85%- Company
- Astrobites
Global Rank
#462,182
63,960Bounce Rate
47.23%
Pages per Visit
1.59
Avg Visit Duration
00:00:34
Similarity Score
82%Demonstration of the Craik-O’Brien-Cornsweet illusion
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Global Rank
#256,532
95,089Bounce Rate
39.64%
Pages per Visit
4.87
Avg Visit Duration
00:00:53
Similarity Score
80%- Company
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78%4D2Uプロジェクトに関するよくある質問一覧です
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Bounce Rate
79.09%
Pages per Visit
1.66
Avg Visit Duration
00:00:16
Similarity Score
75%optics4kids.org's top 5 competitors in May 2026 are: magiceye.com, illusionsindex.org, brainden.com, worldofillusion.ie, and more.
According to Similarweb data of monthly visits, optics4kids.org’s top competitor in May 2026 is magiceye.com. optics4kids.org 2nd most similar site is illusionsindex.org, and closing off the top 3 is brainden.com.
worldofillusion.ie ranks as the 4th most similar website to optics4kids.org and puzzlewocky.com ranks fifth in May 2026.
The other five competitors in the top 10 list are physlink.com, astrobites.org, michaelbach.de, ned.ipac.caltech.edu, and 4d2u.nao.ac.jp.