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The top 500 sites on the web The sites in the top sites lists are ordered by their 1 month Alexa traffic rank.

The 1 month rank is calculated using a combination of average daily visitors and pageviews over the past month. The site with the highest combination of visitors and pageviews is ranked #1

Showing 50 of 500 results

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Site
Daily Time on Site Daily Time on Site

Estimated daily time on site (mm:ss) per visitor to the site. Updated daily based on the trailing 3 months.
Daily Pageviews per Visitor Daily Pageviews per Visitor

Estimated daily unique pageviews per visitor on the site. Updated daily based on the trailing 3 months.
% of Traffic From Search % of Traffic From Search

The percentage of all referrals that came from Search engines over the trailing month. Updated daily.
Total Sites Linking In Total Sites Linking In

The total number of sites that Alexa found that link to this site. For more information please see this explanation of how Alexa determines the number of sites linking in.
1

Stackoverflow.com

A language-independent collaboratively edited question and answer site for programmers. QuestioMorens and answers displayed by user votes and tags. Less

5:25

3.54

72.10%

60,735

2

Nlm.nih.gov

US national provider of health-related library and information services.

3:48

3.28

57.20%

185,289

3

Answers.yahoo.com

Ask questions and get answers from other people in the community.

3:53

3.37

7.50%

622,620

4

Archive.org

Nonprofit organisation established to preserve Web sites by taking regular "snapshots". The WayMoreback Machine provides links to older versions of a webpage. There are special collections, for example on Web pioneers. Less

3:58

3.88

29.50%

134,327

5

Udemy.com

Delivers online courses that cover many topics and interests. Fees vary.

6:22

4.61

18.20%

3,999

6

Blackboard.com

an online education company transforming the Internet into a dynamic web-based teaching and leaMorerning environment for colleges, universities and organizations through course delivery. Less

10:03

5.79

7.90%

3,732

7

Wordreference.com

Dictionary containing English to/from Spanish, French, German, and Italian, and a language forum.m. Less

4:56

4.16

54.00%

16,981

8

Thesaurus.com

Searchable online version of Roget's Thesaurus of English words and phrases.

2:46

1.92

67.50%

7,239

9

Goodreads.com

Lets users track and rate books and network with other readers.

4:03

3.61

44.80%

76,387

10

Cambridge.org

Information on the campuses and all areas of the printing press.

5:28

3.58

47.40%

32,481

11

Wiktionary.org

Collaborative project for creating a free lexical database in every language, complete with meaMorenings, etymologies, and pronunciations. Less

2:00

1.94

68.30%

29,462

12

Elsevier.com

elsevier.com is the web resource for the publishing house Elsevier, specializing in scientific,More technical and medical information. Find all products, support and contacts, and information about the company. Less

2:29

2.31

24.60%

23,286

13

Urbandictionary.com

A veritable cornucopia of streetwise lingo, posted and defined by its readers.

1:48

1.12

80.20%

33,326

14

Dictionary.cambridge.org

Free online dictionary from Cambridge University Press.

5:28

3.58

47.40%

32,481

15

Mit.edu

Admissions information, events calendar, visitor's information and news items.

4:15

3.52

39.70%

106,980

16

Thefreedictionary.com

English, Medical, Legal, and Computer Dictionaries, Thesaurus, Encyclopedia, a Literature ReferMoreence Library, and a Search Engine all in one! Less

2:16

1.85

66.30%

34,398

17

Merriam-webster.com

Publisher of American English dictionaries and reference sources.

2:21

1.91

63.90%

27,915

18

Coursera.org

Social entrepreneurship company that partners with top universities around the world to offer fMoreree courses online for anyone to take. Includes courses and list of universities. Less

4:47

3.35

21.80%

3,443

19

Investopedia.com

Investment education site that includes the most comprehensive investing dictionary on the web Moreas well as articles and tutorials on nearly any aspect of the market. Less

2:47

1.68

67.30%

22,914

20

Harvard.edu

The oldest institution of higher learning in the United States.

3:26

3.15

42.40%

108,729

21

Stanford.edu

General information about the departments and contacts.

2:55

2.78

44.40%

95,743

22

En.wiktionary.org

English language Wiki dictionary from the Wikimedia Foundation.

2:00

1.94

68.30%

29,462

23

Edx.org

Free courses designed specifically for interactive study via the web, provided by MIT, Harvard Moreand Berkeley. edX will also research how students learn and how technology can transform learning, both on-campus and worldwide. Less

7:02

5.26

18.10%

2,166

24

Berkeley.edu

Official Site.

4:10

4.27

36.00%

75,231

25

Ecollege.com

Offering courses and degrees via the Internet.

2:12

3.16

2.70%

350

26

Psu.edu

Chartered by the Commonwealth of Pennsylvania in 1855. The only land-grant University in the stMoreate. Currently, home to over 80,000 students in more than 160 baccalaureate programs at 24 locations. Also, home to the Penn State Nittany Lions. Less

2:26

2.47

46.80%

45,912

27

Oup.com

University department which also publishes dictionaries, educational, academic and scholarly boMoreoks. Searchable catalogue of books and journals available. Less

2:21

2.00

42.60%

15,525

28

Iitm.ac.in

Official site. Information about programs offered, departments, activities, research, admissionMores, events and contacts. Less

10:32

5.56

30.80%

4,518

29

Britannica.com

Provides complete text of Encyclopaedia Britannica with search capabilities, related links, andMore multimedia enhancements. Free trial available. Less

2:19

1.42

63.00%

32,650

30

Cornell.edu

Founded in 1865, Cornell is a leading private institution of higher learning located in Ithaca,More New York. As the land grant university of New York, it includes four statutory units affiliated with the State University of New York. Less

3:33

3.58

49.90%

64,953

31

Thoughtco.com

A description has not been provided for this site.

2:05

1.31

60.20%

321

32

Ed.gov

Links to reports on all aspects of the organization's work, including student aid, legislation,More statistics, and school locator. Less

4:19

4.19

39.10%

40,408

33

Umich.edu

The official home page for the University of Michigan, Ann Arbor.

3:37

3.96

37.80%

53,470

34

Sjtu.edu.cn

Includes department profiles, information for overseas students, details of upcoming conferenceMores and coverage of academic programmes and facilities. Less

4:21

5.47

11.80%

6,252

35

Illinois.edu

General information about the departments and contacts.

4:34

4.67

37.20%

25,107

36

Oxforddictionaries.com

Dictionary by Oxford University Press. Answers questions on English grammar, spelling, and usagMoree. Basic dictionary is free, premium content with subscription. Less

3:28

2.39

58.50%

9,591

37

Whitepages.com

WhitePages.com allows you to find people, business listings, phone numbers, addresses, area codMorees, ZIP codes and postal codes. Less

2:25

2.83

64.10%

7,862

38

Spanishdict.com

Bidirectional Spanish and English dictionary with audio pronunciation of the words.

3:36

1.97

60.80%

2,173

39

Yourdictionary.com

The dictionary you can understand featuring definitions that actually make sense with example uMorese cases for the most popular words. Be confident in your use of words! YourDictionary features original definitions with example use cases; definitions from the American Heritage Dictionary of the English Language and Webster’s New World College Dictionary; specialized definitions for business, finance, investment, computer, culture, legal, medical and science; acronyms, abbreviations, and idioms; Encyclopedia of World Biography; Roget’s A-Z Thesaurus and Roget's II: The New Thesaurus; plus, audio pronunciations, sentence usage examples, famous quotes and language and reference articles. Less

3:07

2.09

72.40%

8,850

40

Wisc.edu

Official web site.

3:51

4.17

39.90%

48,193

41

Dict.cc

Two-way lookup with over 630,000 keywords. User contributions are encouraged. Includes user recMoreorded voices, vocabulary trainer and translation forum. Less

4:35

1.81

31.40%

2,974

42

Howstuffworks.com

HowStuffWorks.com is an award winning site covering thousands of topics within its own 10 channMoreels: Auto, Computer, Electronics, Entertainment, Health, Home, Money, People, Science and Travel. Less

2:35

1.82

47.60%

42,811

43

Turnitin.com

Provides a service to determine the originality of texts based on comparisons with their internMoreal database and net-wide searches. Five free trials. Less

9:32

4.17

14.50%

3,569

44

Purdue.edu

This is the official Web site of Purdue University, home of the Boilermakers, alma mater of theMore first and last men to walk on the moon, and proud member of the Big Ten Conference. Perennially ranked among the nation's top public universities and research institutions, Purdue serves as Indiana's land-, sea-, and space-grant university with a main campus in West Lafayette and locations across the state. Less

4:34

3.93

44.70%

27,433

45

Udacity.com

Provides free online courses along with a range of certification options for a fee.

6:04

4.18

15.00%

2,932

46

Lynda.com

Learn software, creative, and business skills to achieve your personal and professional goals. MoreJoin today and start learning. Less

4:17

3.65

25.80%

8,070

47

Utexas.edu

A comprehensive university with a broad mission of undergraduate and graduate education, researMorech, and service to society. Enrollment of over 48,000. Less

3:41

4.22

41.60%

45,194

48

Columbia.edu

Founded in 1754 as King's College by royal charter, it is the oldest institution of higherMore learning in the State of New York. Located in New York City and a member of the Ivy League. Less

3:43

3.90

41.90%

51,526

49

Nyu.edu

Founded in 1831 to enlarge the scope of higher education: includes thirteen schools, colleges, Moreand divisions at five major centers in Manhattan. Less

4:41

5.14

37.10%

36,244

50

Dict.leo.org

Allows two-way searches for over 400,000 words and phrases. Several options available.

2:38

1.92

23.60%

5,078

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