Your description is 153 characters long, this is a great length as it falls within the golden 150-160 character length criteria!!! Keep up the good work.
Keywords from keyword density in the description
Your description incorporates a fair amount of keywords, two thumbs up!
Sondaj.biz Keywords Analysis
, Artezyen Kuyu, Jeofizik Etüt, Jeolojik Etüt, Jeotermal Sondaj, Kuyu, Kuyu Açmak, Kuyu Temizleme, Kuyu Temizlik, Kuyu Temizliği, Sondaj, Sondaj Firmaları, Sondaj Şirketleri, Sondajcı, Sondajcılar, Sontaj, Su Arama, Su Etüdü, Su Kuyusu, Su Sondaj, Su Sondajı, Zemin Araştırma, Zemin Etüdü, Zemin Sondaj, Zemin Sondajı
You do not have even the minimal 3 keywords in your key word count (from keyword density). Try to use some of these keywords:
Sondaj.biz Code to Text Ratio
Your code to text ratio is 21.78%. You could say that though the building is not on fire, it still requireds some attention. You can improve your website by adding some more content or making minor revisions in your code (content would probably be easier...).
Sondaj.biz Head Tags Analysys
Heading tags present the structure to the users (not to be confused with the <head> HTML tag or HTTP headers). Heading tags are broken down to six levels, starting with <h1> (descending order of importance)and ending with <h6> as the least important.
You have 1 tag/s on the H1 level, 2 tag/s on the H2 level and unused tags: <H4>, <H5>
Sondaj.biz Images Analysys
Alt attributes on images
Some images, such as: <img src="./assets/images/autogen/clearpixel.gif" width=187 height=1 border=0 alt="">, <img src="./assets/images/autogen/clearpixel.gif" width=186 height=1 border=0 alt="">, <img src="./assets/images/autogen/clearpixel.gif" width=18 height=1 border=0 alt="">, <img src="./assets/images/autogen/clearpixel.gif" width=1 height=1 border=0 alt="">, <img src="./assets/images/autogen/clearpixel.gif" width=962 height=1 border=0 alt=""> are missing an ALT attribute. It can positively influence for your site SEO if you were to mend this situation.
Assigned w/h dimensions of all images
Assigned Width and height of all images; this has to do more with user experience rather than pure SEO. This attribute is most important for slow connection users and/or highly graphic websites, improving loading speed and avoiding odd behavior while page is loading.
100 % percent of your images have fixed dimension. 12 images with “width” and “height”, there are 0 more images that you should add dimension to.
Sondaj.biz External JS/CSS Files
Your page have 1-3 JS file, it’s no affect to speed of loadpage.
Count of CSS files on the page
Some styles are based on HTML, it is recommended to switch it to external CSS files.
Sondaj.biz Links Analysys
You have 3 external links on your homepage, this is good because the 100 links maximal recommended limit.
You have 44 internal links on your homepage, this is good because the 100 links maximal recommended limit.
Sondaj.biz W3C HTML Validation
You have 20 errors, and 0 warnings.
Line 6, Column 29: required attribute "TYPE" not specified Line 36, Column 7: required attribute "TYPE" not specified Line 40, Column 68: required attribute "TYPE" not specified