It looks like this is a web page, not a feed. I looked for a feed associated with this page, but couldn't find one. Please enter the address of your feed to validate.

Source: http://diagtools.lv/forum/tools.php?action=rss

  1. <html>
  2.  
  3. <head>
  4. <meta http-equiv=Content-Type content="text/html; charset=utf-8">
  5. <meta http-equiv=Content-Language content=ru>
  6. <meta http-equiv=EXPIRES content=0>
  7. <meta name=RESOURCE-TYPE content=DOCUMENT>
  8. <meta name=DISTRIBUTION content=GENERAL>
  9. <meta name=AUTHOR content=www.diagtools.lv>
  10.  
  11.  
  12. <!--#include virtual="/headers/wordpagestyle.ini" -->
  13.  
  14.  
  15. <p class=MsoNormal align=center style='text-align:center'><span lang=EN-US>&nbsp;</span></p>
  16.  
  17. <p class=MsoNormal align=center style='text-align:center'><span lang=EN-US>&nbsp;</span></p>
  18.  
  19. <p class=MsoNormal align=center style='text-align:center'><span lang=EN-US>&nbsp;</span></p>
  20.  
  21. <p class=MsoNormal align=center style='text-align:center'><span
  22. style='color:black'><img width=250 height=65 id=Image1
  23. src="http://diagtools.lv/404.files/image001.jpg" alt="Diagtools"></span></p><br>
  24.  
  25. <p class=MsoNormal align=center style='text-align:center'><span lang=EN-US
  26. style='font-size:28.0pt;line-height:115%;font-family:"Times New Roman","serif"'>404</span></p>
  27.  
  28. <p class=MsoNormal align=center style='text-align:center'><span lang=EN-US>&nbsp;</span></p>
  29.  
  30. <p class=MsoNormal align=center style='text-align:center'><span lang=EN-US
  31. style='font-size:14.0pt;line-height:115%;font-family:"Times New Roman","serif"'>Requested
  32. web page not exist. Press button “<A href="javascript:history.go(-1)"mce_href="javascript:history.go(-1)">back</a>” to return or <a
  33. href="https://diagtools.eu/en">go to the web site main page</a>.</span></p>
  34.  
  35. <p class=MsoNormal align=center style='text-align:center'><span lang=LV
  36. style='font-size:14.0pt;line-height:115%;font-family:"Times New Roman","serif"'>Dotajā
  37. adresē pieprasītā lapa neeksistē. Nospiediet pogu “<A href="javascript:history.go(-1)"mce_href="javascript:history.go(-1)">atpakaļ</a>” vai <a
  38. href="https://diagtools.eu/lv">dodieties uz saita mājas lapu</a>.</span></p>
  39.  
  40. <p class=MsoNormal align=center style='text-align:center'><span
  41. style='font-size:14.0pt;line-height:115%;font-family:"Times New Roman","serif"'>Запрашиваемой
  42. страницы по данному адресу не найдено. Нажмите кнопку “<A href="javascript:history.go(-1)"mce_href="javascript:history.go(-1)">назад</a>” для возврата или <a
  43. href="https://diagtools.eu/ru">перейдите на главную страницу сайта</a>.
  44. </span></p>
  45.  
  46. <p class=MsoNormal align=center style='text-align:center'><span lang=ES
  47. style='font-size:14.0pt;line-height:115%;font-family:"Times New Roman","serif"'>La
  48. página web solicitada no existe. Pulse el botón &quot;<A href="javascript:history.go(-1)"mce_href="javascript:history.go(-1)">atrás</a>&quot; para volver o
  49. <a href="https://diagtools.eu/es">vueve a la página principal del
  50. sitio web</a>.</span></p>
  51.  
  52. <p class=MsoNormal align=center style='text-align:center'><span lang=ES
  53. style='font-size:14.0pt;line-height:115%;font-family:"Times New Roman","serif"'>&nbsp;</span></p>
  54.  
  55. </div><br><br><br><br><br><br><br><br><br><br><br><br><br>
  56.  
  57. <!--#include virtual="/headers/indexfooter_en.html" -->
  58.  
Copyright © 2002-9 Sam Ruby, Mark Pilgrim, Joseph Walton, and Phil Ringnalda