Web con 52 paginas indexadas y no aparece la principal en google

En la web http://www.compromisoycultura.com me dice que tiene 72 paginas indexadas sin embargo la misma no aparece en google

a que se puede ver el problema?. he enviado correctamente el sitemap y el fichero robots.txt es el mismo que el usado en otras web, no entendo por que no aparece

# If the Joomla site is installed within a folder such as at
# e.g. www.example.com/joomla/ the robots.txt file MUST be
# moved to the site root at e.g. www.example.com/robots.txt
# AND the joomla folder name MUST be prefixed to the disallowed
# path, e.g. the Disallow rule for the /administrator/ folder
# MUST be changed to read Disallow: /joomla/administrator/
#
# For more information about the robots.txt standard, see:
# http://www.robotstxt.org/orig.html
#
# For syntax checking, see:
# http://www.sxw.org.uk/computing/robots/check.html

User-agent: *
Disallow: /administrator/
Disallow: /cli/
Disallow: /includes/
Disallow: /installation/
Disallow: /language/
Disallow: /libraries/
Disallow: /logs/
Disallow: /tmp/

# JSitemap entries
Sitemap: http://www.compromisoycultura.com/index.php?option=com_jmap&view=sitemap&format=xml

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