Bobby Accessibility Report

URL: http://scholar.lib.vt.edu/www_stats/sumatra/er-allstats-0696-0797.html, April 20, 1999 3:35:37 PM EDT
Bobby Version: 3.0b3, build: 002
Browser Compatibility: HTML 4.0
Click on the error messages below to find out more information.

Accessibility Errors

This page has not been rated for accessibility. You must choose the "Accessibility Evaluation and Rating" option to get an accessibility rating.

No accessibility errors found.

Accessibility Recommendations

This section contains a list of accessibility recommendations that you should fix in order to improve accessibility. Accessibility recommendations do not affect the Bobby Approved rating.
  1. Use the LANG attribute to identify the language of the text

Accessibility Questions

This section contains a list of accessibility questions. Bobby is unable to determine if these questions are satisfied so it is important for you to check each item carefully.
  1. Does this image convey important information beyond what is in its alternative text description?
    Line 7: <h1><a NAME="Top"><IMG src="/analog/images/analogo.gif" alt=""> Web Server Statistics for</a> </h1>
    Line 36: <p>Each unit (<tt><img src="/analog/images/bar1.gif" alt="+"></tt>) represents 2 000 requests for pages, or part thereof.
    Line 41: Jun 1996: 302: <img src="/analog/images/bar1.gif" alt="+">
    Line 42: Jul 1996: 3822: <img src="/analog/images/bar2.gif" alt="++">
    Line 43: Aug 1996: 11983: <img src="/analog/images/bar4.gif" alt="++++++"><img src="/analog/images/bar2.gif" alt="">
    Line 44: Sep 1996: 64738: <img src="/analog/images/bar32.gif" alt="+++++++++++++++++++++++++++++++++"><img src="/analog/images/bar1.gif" alt="">
    Line 45: Oct 1996: 66236: <img src="/analog/images/bar32.gif" alt="++++++++++++++++++++++++++++++++++"><img src="/analog/images/bar2.gif" alt="">
    Line 46: Nov 1996: 45839: <img src="/analog/images/bar16.gif" alt="+++++++++++++++++++++++"><img src="/analog/images/bar4.gif" alt=""><img src="/analog/images/bar2.gif" alt=""><img src="/analog/images/bar1.gif" alt="">
    Line 47: Dec 1996: 41318: <img src="/analog/images/bar16.gif" alt="+++++++++++++++++++++"><img src="/analog/images/bar4.gif" alt=""><img src="/analog/images/bar1.gif" alt="">
    Line 48: Jan 1997: 65727: <img src="/analog/images/bar32.gif" alt="+++++++++++++++++++++++++++++++++"><img src="/analog/images/bar1.gif" alt="">
    Line 49: Feb 1997: 72181: <img src="/analog/images/bar32.gif" alt="+++++++++++++++++++++++++++++++++++++"><img src="/analog/images/bar4.gif" alt=""><img src="/analog/images/bar1.gif" alt="">
    Line 50: Mar 1997: 51660: <img src="/analog/images/bar16.gif" alt="++++++++++++++++++++++++++"><img src="/analog/images/bar8.gif" alt=""><img src="/analog/images/bar2.gif" alt="">
    Line 51: Apr 1997: 64141: <img src="/analog/images/bar32.gif" alt="+++++++++++++++++++++++++++++++++"><img src="/analog/images/bar1.gif" alt="">
    Line 52: May 1997: 25793: <img src="/analog/images/bar8.gif" alt="+++++++++++++"><img src="/analog/images/bar4.gif" alt=""><img src="/analog/images/bar1.gif" alt="">
    Line 53: Jun 1997: 11661: <img src="/analog/images/bar4.gif" alt="++++++"><img src="/analog/images/bar2.gif" alt="">
    Line 60: <p>Each unit (<tt><img src="/analog/images/bar1.gif" alt="+"></tt>) represents 500 requests for pages, or part thereof.
    Line 65: 16/Jun/96: 65: <img src="/analog/images/bar1.gif" alt="+">
    Line 66: 23/Jun/96: 237: <img src="/analog/images/bar1.gif" alt="+">
    Line 67: 30/Jun/96: 770: <img src="/analog/images/bar2.gif" alt="++">
    Line 68: 7/Jul/96: 1295: <img src="/analog/images/bar2.gif" alt="+++"><img src="/analog/images/bar1.gif" alt="">
    Line 69: 14/Jul/96: 778: <img src="/analog/images/bar2.gif" alt="++">
    Line 70: 21/Jul/96: 508: <img src="/analog/images/bar2.gif" alt="++">
    Line 71: 28/Jul/96: 590: <img src="/analog/images/bar2.gif" alt="++">
    Line 72: 4/Aug/96: 773: <img src="/analog/images/bar2.gif" alt="++">
    Line 73: 11/Aug/96: 140: <img src="/analog/images/bar1.gif" alt="+">
    Line 74: 18/Aug/96: 610: <img src="/analog/images/bar2.gif" alt="++">
    Line 75: 25/Aug/96: 10341: <img src="/analog/images/bar16.gif" alt="+++++++++++++++++++++"><img src="/analog/images/bar4.gif" alt=""><img src="/analog/images/bar1.gif" alt="">
    Line 76: 1/Sep/96: 14300: <img src="/analog/images/bar16.gif" alt="+++++++++++++++++++++++++++++"><img src="/analog/images/bar8.gif" alt=""><img src="/analog/images/bar4.gif" alt=""><img src="/analog/images/bar1.gif" alt="">
    Line 77: 8/Sep/96: 16357: <img src="/analog/images/bar32.gif" alt="+++++++++++++++++++++++++++++++++"><img src="/analog/images/bar1.gif" alt="">
    Line 78: 15/Sep/96: 13864: <img src="/analog/images/bar16.gif" alt="++++++++++++++++++++++++++++"><img src="/analog/images/bar8.gif" alt=""><img src="/analog/images/bar4.gif" alt="">
    Line 79: 22/Sep/96: 14606: <img src="/analog/images/bar16.gif" alt="++++++++++++++++++++++++++++++"><img src="/analog/images/bar8.gif" alt=""><img src="/analog/images/bar4.gif" alt=""><img src="/analog/images/bar2.gif" alt="">
    Line 80: 29/Sep/96: 16558: <img src="/analog/images/bar32.gif" alt="++++++++++++++++++++++++++++++++++"><img src="/analog/images/bar2.gif" alt="">
    Line 81: 6/Oct/96: 12225: <img src="/analog/images/bar16.gif" alt="+++++++++++++++++++++++++"><img src="/analog/images/bar8.gif" alt=""><img src="/analog/images/bar1.gif" alt="">
    Line 82: 13/Oct/96: 12398: <img src="/analog/images/bar16.gif" alt="+++++++++++++++++++++++++"><img src="/analog/images/bar8.gif" alt=""><img src="/analog/images/bar1.gif" alt="">
    Line 83: 20/Oct/96: 17498: <img src="/analog/images/bar32.gif" alt="+++++++++++++++++++++++++++++++++++"><img src="/analog/images/bar2.gif" alt=""><img src="/analog/images/bar1.gif" alt="">
    Line 84: 27/Oct/96: 14897: <img src="/analog/images/bar16.gif" alt="++++++++++++++++++++++++++++++"><img src="/analog/images/bar8.gif" alt=""><img src="/analog/images/bar4.gif" alt=""><img src="/analog/images/bar2.gif" alt="">
    Line 85: 3/Nov/96: 14076: <img src="/analog/images/bar16.gif" alt="+++++++++++++++++++++++++++++"><img src="/analog/images/bar8.gif" alt=""><img src="/analog/images/bar4.gif" alt=""><img src="/analog/images/bar1.gif" alt="">
    Line 86: 10/Nov/96: 18265: <img src="/analog/images/bar32.gif" alt="+++++++++++++++++++++++++++++++++++++"><img src="/analog/images/bar4.gif" alt=""><img src="/analog/images/bar1.gif" alt="">
    Line 87: 17/Nov/96: 10595: <img src="/analog/images/bar16.gif" alt="++++++++++++++++++++++"><img src="/analog/images/bar4.gif" alt=""><img src="/analog/images/bar2.gif" alt="">
    Line 88: 24/Nov/96: 1174: <img src="/analog/images/bar2.gif" alt="+++"><img src="/analog/images/bar1.gif" alt="">
    Line 89: 1/Dec/96: 12045: <img src="/analog/images/bar16.gif" alt="+++++++++++++++++++++++++"><img src="/analog/images/bar8.gif" alt=""><img src="/analog/images/bar1.gif" alt="">
    Line 90: 8/Dec/96: 16337: <img src="/analog/images/bar32.gif" alt="+++++++++++++++++++++++++++++++++"><img src="/analog/images/bar1.gif" alt="">
    Line 91: 15/Dec/96: 12308: <img src="/analog/images/bar16.gif" alt="+++++++++++++++++++++++++"><img src="/analog/images/bar8.gif" alt=""><img src="/analog/images/bar1.gif" alt="">
    Line 92: 22/Dec/96: 494: <img src="/analog/images/bar1.gif" alt="+">
    Line 93: 29/Dec/96: 833: <img src="/analog/images/bar2.gif" alt="++">
    Line 94: 5/Jan/97: 4185: <img src="/analog/images/bar8.gif" alt="+++++++++"><img src="/analog/images/bar1.gif" alt="">
    Line 95: 12/Jan/97: 22259: <img src="/analog/images/bar32.gif" alt="+++++++++++++++++++++++++++++++++++++++++++++"><img src="/analog/images/bar8.gif" alt=""><img src="/analog/images/bar4.gif" alt=""><img src="/analog/images/bar1.gif" alt="">
    Line 96: 19/Jan/97: 19686: <img src="/analog/images/bar32.gif" alt="++++++++++++++++++++++++++++++++++++++++"><img src="/analog/images/bar8.gif" alt="">
    Line 97: 26/Jan/97: 20140: <img src="/analog/images/bar32.gif" alt="+++++++++++++++++++++++++++++++++++++++++"><img src="/analog/images/bar8.gif" alt=""><img src="/analog/images/bar1.gif" alt="">
    Line 98: 2/Feb/97: 22060: <img src="/analog/images/bar32.gif" alt="+++++++++++++++++++++++++++++++++++++++++++++"><img src="/analog/images/bar8.gif" alt=""><img src="/analog/images/bar4.gif" alt=""><img src="/analog/images/bar1.gif" alt="">
    Line 99: 9/Feb/97: 16458: <img src="/analog/images/bar32.gif" alt="+++++++++++++++++++++++++++++++++"><img src="/analog/images/bar1.gif" alt="">
    Line 100: 16/Feb/97: 15308: <img src="/analog/images/bar16.gif" alt="+++++++++++++++++++++++++++++++"><img src="/analog/images/bar8.gif" alt=""><img src="/analog/images/bar4.gif" alt=""><img src="/analog/images/bar2.gif" alt=""><img src="/analog/images/bar1.gif" alt="">
    Line 101: 23/Feb/97: 17499: <img src="/analog/images/bar32.gif" alt="+++++++++++++++++++++++++++++++++++"><img src="/analog/images/bar2.gif" alt=""><img src="/analog/images/bar1.gif" alt="">
    Line 102: 2/Mar/97: 3042: <img src="/analog/images/bar4.gif" alt="+++++++"><img src="/analog/images/bar2.gif" alt=""><img src="/analog/images/bar1.gif" alt="">
    Line 103: 9/Mar/97: 16330: <img src="/analog/images/bar32.gif" alt="+++++++++++++++++++++++++++++++++"><img src="/analog/images/bar1.gif" alt="">
    Line 104: 16/Mar/97: 12585: <img src="/analog/images/bar16.gif" alt="++++++++++++++++++++++++++"><img src="/analog/images/bar8.gif" alt=""><img src="/analog/images/bar2.gif" alt="">
    Line 105: 23/Mar/97: 13367: <img src="/analog/images/bar16.gif" alt="+++++++++++++++++++++++++++"><img src="/analog/images/bar8.gif" alt=""><img src="/analog/images/bar2.gif" alt=""><img src="/analog/images/bar1.gif" alt="">
    Line 106: 30/Mar/97: 19763: <img src="/analog/images/bar32.gif" alt="++++++++++++++++++++++++++++++++++++++++"><img src="/analog/images/bar8.gif" alt="">
    Line 107: 6/Apr/97: 15069: <img src="/analog/images/bar16.gif" alt="+++++++++++++++++++++++++++++++"><img src="/analog/images/bar8.gif" alt=""><img src="/analog/images/bar4.gif" alt=""><img src="/analog/images/bar2.gif" alt=""><img src="/analog/images/bar1.gif" alt="">
    Line 108: 13/Apr/97: 11972: <img src="/analog/images/bar16.gif" alt="++++++++++++++++++++++++"><img src="/analog/images/bar8.gif" alt="">
    Line 109: 20/Apr/97: 11542: <img src="/analog/images/bar16.gif" alt="++++++++++++++++++++++++"><img src="/analog/images/bar8.gif" alt="">
    Line 110: 27/Apr/97: 20634: <img src="/analog/images/bar32.gif" alt="++++++++++++++++++++++++++++++++++++++++++"><img src="/analog/images/bar8.gif" alt=""><img src="/analog/images/bar2.gif" alt="">
    Line 111: 4/May/97: 9641: <img src="/analog/images/bar16.gif" alt="++++++++++++++++++++"><img src="/analog/images/bar4.gif" alt="">
    Line 112: 11/May/97: 1055: <img src="/analog/images/bar2.gif" alt="+++"><img src="/analog/images/bar1.gif" alt="">
    Line 113: 18/May/97: 2999: <img src="/analog/images/bar4.gif" alt="++++++"><img src="/analog/images/bar2.gif" alt="">
    Line 114: 25/May/97: 3209: <img src="/analog/images/bar4.gif" alt="+++++++"><img src="/analog/images/bar2.gif" alt=""><img src="/analog/images/bar1.gif" alt="">
    Line 115: 1/Jun/97: 3261: <img src="/analog/images/bar4.gif" alt="+++++++"><img src="/analog/images/bar2.gif" alt=""><img src="/analog/images/bar1.gif" alt="">
    Line 116: 8/Jun/97: 2639: <img src="/analog/images/bar4.gif" alt="++++++"><img src="/analog/images/bar2.gif" alt="">
    Line 117: 15/Jun/97: 2175: <img src="/analog/images/bar4.gif" alt="+++++"><img src="/analog/images/bar1.gif" alt="">
    Line 118: 22/Jun/97: 2615: <img src="/analog/images/bar4.gif" alt="++++++"><img src="/analog/images/bar2.gif" alt="">
    Line 119: 29/Jun/97: 971: <img src="/analog/images/bar2.gif" alt="++">
    Line 126: <p>Each unit (<tt><img src="/analog/images/bar1.gif" alt="+"></tt>) represents 2 500 requests for pages, or part thereof.
    Line 131: Sun: 62709: <img src="/analog/images/bar16.gif" alt="++++++++++++++++++++++++++"><img src="/analog/images/bar8.gif" alt=""><img src="/analog/images/bar2.gif" alt="">
    Line 132: Mon: 104012: <img src="/analog/images/bar32.gif" alt="++++++++++++++++++++++++++++++++++++++++++"><img src="/analog/images/bar8.gif" alt=""><img src="/analog/images/bar2.gif" alt="">
    Line 133: Tue: 103644: <img src="/analog/images/bar32.gif" alt="++++++++++++++++++++++++++++++++++++++++++"><img src="/analog/images/bar8.gif" alt=""><img src="/analog/images/bar2.gif" alt="">
    Line 134: Wed: 96096: <img src="/analog/images/bar32.gif" alt="+++++++++++++++++++++++++++++++++++++++"><img src="/analog/images/bar4.gif" alt=""><img src="/analog/images/bar2.gif" alt=""><img src="/analog/images/bar1.gif" alt="">
    Line 135: Thu: 81957: <img src="/analog/images/bar32.gif" alt="+++++++++++++++++++++++++++++++++"><img src="/analog/images/bar1.gif" alt="">
    Line 136: Fri: 50200: <img src="/analog/images/bar16.gif" alt="+++++++++++++++++++++"><img src="/analog/images/bar4.gif" alt=""><img src="/analog/images/bar1.gif" alt="">
    Line 137: Sat: 26783: <img src="/analog/images/bar8.gif" alt="+++++++++++"><img src="/analog/images/bar2.gif" alt=""><img src="/analog/images/bar1.gif" alt="">
    Line 144: <p>Each unit (<tt><img src="/analog/images/bar1.gif" alt="+"></tt>) represents 800 requests for pages, or part thereof.
    Line 149: 0: 16197: <img src="/analog/images/bar16.gif" alt="+++++++++++++++++++++"><img src="/analog/images/bar4.gif" alt=""><img src="/analog/images/bar1.gif" alt="">
    Line 150: 1: 9979: <img src="/analog/images/bar8.gif" alt="+++++++++++++"><img src="/analog/images/bar4.gif" alt=""><img src="/analog/images/bar1.gif" alt="">
    Line 151: 2: 4826: <img src="/analog/images/bar4.gif" alt="+++++++"><img src="/analog/images/bar2.gif" alt=""><img src="/analog/images/bar1.gif" alt="">
    Line 152: 3: 2499: <img src="/analog/images/bar4.gif" alt="++++">
    Line 153: 4: 1316: <img src="/analog/images/bar2.gif" alt="++">
    Line 154: 5: 1158: <img src="/analog/images/bar2.gif" alt="++">
    Line 155: 6: 1527: <img src="/analog/images/bar2.gif" alt="++">
    Line 156: 7: 4920: <img src="/analog/images/bar4.gif" alt="+++++++"><img src="/analog/images/bar2.gif" alt=""><img src="/analog/images/bar1.gif" alt="">
    Line 157: 8: 11701: <img src="/analog/images/bar8.gif" alt="+++++++++++++++"><img src="/analog/images/bar4.gif" alt=""><img src="/analog/images/bar2.gif" alt=""><img src="/analog/images/bar1.gif" alt="">
    Line 158: 9: 20885: <img src="/analog/images/bar16.gif" alt="+++++++++++++++++++++++++++"><img src="/analog/images/bar8.gif" alt=""><img src="/analog/images/bar2.gif" alt=""><img src="/analog/images/bar1.gif" alt="">
    Line 159: 10: 28267: <img src="/analog/images/bar32.gif" alt="++++++++++++++++++++++++++++++++++++"><img src="/analog/images/bar4.gif" alt="">
    Line 160: 11: 29849: <img src="/analog/images/bar32.gif" alt="++++++++++++++++++++++++++++++++++++++"><img src="/analog/images/bar4.gif" alt=""><img src="/analog/images/bar2.gif" alt="">
    Line 161: 12: 32926: <img src="/analog/images/bar32.gif" alt="++++++++++++++++++++++++++++++++++++++++++"><img src="/analog/images/bar8.gif" alt=""><img src="/analog/images/bar2.gif" alt="">
    Line 162: 13: 33069: <img src="/analog/images/bar32.gif" alt="++++++++++++++++++++++++++++++++++++++++++"><img src="/analog/images/bar8.gif" alt=""><img src="/analog/images/bar2.gif" alt="">
    Line 163: 14: 37276: <img src="/analog/images/bar32.gif" alt="+++++++++++++++++++++++++++++++++++++++++++++++"><img src="/analog/images/bar8.gif" alt=""><img src="/analog/images/bar4.gif" alt=""><img src="/analog/images/bar2.gif" alt=""><img src="/analog/images/bar1.gif" alt="">
    Line 164: 15: 37141: <img src="/analog/images/bar32.gif" alt="+++++++++++++++++++++++++++++++++++++++++++++++"><img src="/analog/images/bar8.gif" alt=""><img src="/analog/images/bar4.gif" alt=""><img src="/analog/images/bar2.gif" alt=""><img src="/analog/images/bar1.gif" alt="">
    Line 165: 16: 36225: <img src="/analog/images/bar32.gif" alt="++++++++++++++++++++++++++++++++++++++++++++++"><img src="/analog/images/bar8.gif" alt=""><img src="/analog/images/bar4.gif" alt=""><img src="/analog/images/bar2.gif" alt="">
    Line 166: 17: 34841: <img src="/analog/images/bar32.gif" alt="++++++++++++++++++++++++++++++++++++++++++++"><img src="/analog/images/bar8.gif" alt=""><img src="/analog/images/bar4.gif" alt="">
    Line 167: 18: 29994: <img src="/analog/images/bar32.gif" alt="++++++++++++++++++++++++++++++++++++++"><img src="/analog/images/bar4.gif" alt=""><img src="/analog/images/bar2.gif" alt="">
    Line 168: 19: 32060: <img src="/analog/images/bar32.gif" alt="+++++++++++++++++++++++++++++++++++++++++"><img src="/analog/images/bar8.gif" alt=""><img src="/analog/images/bar1.gif" alt="">
    Line 169: 20: 33940: <img src="/analog/images/bar32.gif" alt="+++++++++++++++++++++++++++++++++++++++++++"><img src="/analog/images/bar8.gif" alt=""><img src="/analog/images/bar2.gif" alt=""><img src="/analog/images/bar1.gif" alt="">
    Line 170: 21: 31914: <img src="/analog/images/bar32.gif" alt="++++++++++++++++++++++++++++++++++++++++"><img src="/analog/images/bar8.gif" alt="">
    Line 171: 22: 29658: <img src="/analog/images/bar32.gif" alt="++++++++++++++++++++++++++++++++++++++"><img src="/analog/images/bar4.gif" alt=""><img src="/analog/images/bar2.gif" alt="">
    Line 172: 23: 23233: <img src="/analog/images/bar16.gif" alt="++++++++++++++++++++++++++++++"><img src="/analog/images/bar8.gif" alt=""><img src="/analog/images/bar4.gif" alt=""><img src="/analog/images/bar2.gif" alt="">
    Lines 369-370: <IMG SRC="/analog/images/html2.gif" ALT="HTML 2.0 Conformant!"></A>

Accessibility Tips

This section contains a list of accessibility tips that you should review. Please note that there are some aspects of page design that are important to accessibility but can not be tested automatically by Bobby. Some of these may appear below in the accessibility tips section.
  1. Use the ABBR and ACRONYM elements to denote abbreviations and acronyms

  2. Make sure that document structure is supported by the proper use of structural elements

  3. Considered adding keyboard shortcuts to important links

  4. Make sure that headings are nested properly

  5. Avoid ASCII art. Replace it with an image and alternative text

Browser Compatibility Errors.

No browsers errors found.

Download Time

The following three column table gives download time statistics for the images, applets, and objects on this page. The first column contains the URL of each item, the second column the item size in kilobytes, and the third column the approximate download time for each item when using a 28,800 baud modem. At the end of the report, an arbitrary delay of 0.5 seconds is added for each file to account for slow-downs caused by HTTP connection times.

URL
Size
Time (seconds)
http://scholar.lib.vt.edu/www_stats/sumatra/er-allstats-0696-0797.html 31.80 K 8.83
/analog/images/analogo.gif --- ---
/analog/images/bar1.gif 0.04 K 0.01
/analog/images/bar2.gif 0.04 K 0.01
/analog/images/bar4.gif 0.04 K 0.01
/analog/images/bar32.gif 0.06 K 0.02
/analog/images/bar16.gif 0.05 K 0.01
/analog/images/bar8.gif 0.05 K 0.01
/analog/images/html2.gif --- ---
Total
32.08 K
8.91
HTTP Request Delays

4.50
Total + Delays

13.41