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htdp.org

htdp.org had about 34.83K visits in September 2026, up 55.53% from August; most traffic is direct.

How to Design Programs: DrScheme Companion

Traffic

34.83K

+55.53%MoMEstimated monthly visits
78937.62K25.08K12.54K0
Global rank

910,499

Country rank · United States

230,195

Category rank · Programming and Developer Software

3,940

Average visit duration

01:18

Pages per visit

2.41

Bounce rate

65.30%

Search share

11.9%

Traffic sources

  • Direct
    63.5%
  • Search
    11.9%
  • Referrals
    8.7%
  • Social
    8.4%
  • Generative AI
    5.8%
  • Email
    1.6%
  • Other
    0.0%
  • Paid search
    0.0%

Regions

  • United States
    83.7%
  • Canada
    12.5%
  • Brazil
    3.2%
  • Italy
    0.6%

Related boards: Most visited websites in the United States · Top developer tools websites by traffic · Fastest growing developer tools websites

See how htdp.org compares with the most visited websites in the world, the fastest growing websites, top websites by AI referrals and sites gaining organic search traffic.

Search visibility

Keyword samples

Estimated visitsMonthly searchesVisits ÷ searches
  1. how to design programs [htdp.org] — first editionBRAND18019095%
  2. how to design programs: an introduction to programming and computing.BRAND120120100%
  3. book /htdp2e/part_one.htmlBRAND11012092%
  4. htdp2e bookBRAND11012092%
  5. bsl adds "_" at position i110110100%

Keyword rankings

Keyword rankings

See the keywords htdp.org ranks for on Google, the pages that bring it traffic, and the competitors fighting it for search traffic.

Live examples: chatgpt.com · github.com · plausible.io

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Backlink rank

Global position

#118,665

639

2026-10-31

Referring IPs
974
Referring subnets
823
.ORG rank
#11,264

Baidu rank

Similar sites

Website reports in the same category, with nearby monthly visits.

What's in this report

The report starts with a whole-site monthly visit estimate. Search visibility and public site facts follow when they exist.

  • Website traffic is a modeled whole-site estimate, with a source, observation period and confidence.
  • Search visibility is ranking keywords and search traffic, listed separately from whole-site visits.
  • Missing or partial values stay marked in the report.
Data notes →How estimates are produced →Website traffic sources →Claim, correct or hide this report →
Cite or embed

htdp.org had about 34.83K visits in September 2026, up 55.53% from August; most traffic is direct. Source: Vaneform estimates, https://vaneform.com/e/htdp-org (updated 2026-09-01).

Show this report's monthly visits on your site or README. Updates with each data month.

<a href="https://vaneform.com/e/htdp-org" rel="nofollow"><img src="https://vaneform.com/api/badge/htdp-org" alt="htdp.org monthly visits · Vaneform" height="20"></a>