# Important Factors for Improving Google Search Rank
## 4 Findings  
### Literature Review  
Through the literature review we found that the factors as shown on Table 1 impact the ranking of websites in search engine indexes. On Table 2 the matching of previous researches to indexes is presented. The most mentioned factors in the above papers include the quality and quantity of backlinks, the social media support, the keyword in title tag, the URL length, and the website structure. Page size and website loading time: A very important on-page factor for the optimization of a website is the loading time. Search engines include this factor in their algorithms too. The higher the loading time, the lower the ranking of a website in the search results. Although special effects and graphic elements upgrade the image of a website, the excessive use of them may increase the loading time of the website. Loading speed is affected not only by graphic elements but the HTML file and all the elements regardless of their file type contribute to the size of a website and affect the loading speed. Most search engines will not fully index pages that are greater than a certain sizeKeyword in title tag: The title tag refers to the title of the file. Every HTML/XHTML file contains a title element. The main use of the title tag is to determine the title in the toolbar of the browser, it shows the title of the website in the search results and the name in the 'favorites' tab. Concerning this factor while structuring a website it is easier for the search engines to trace and rank it in their search results. \begin{table}
\begin{tabular}{c c} \hline \hline Page Size and Website Loading Time & [7, 11, 21, 24, 26, 30] \\ Keyword in Title tag & [8, 10, 11, 19, 20, 23, 25, 27, 30] \\ Keyword in H1/H2/H3 Tag & [8, 19, 20, 30] \\ Keyword Density in Text & [7, 8, 11, 19, 20, 25, 30] \\ Keyword in URL & [8, 19, 20, 30] \\ Keyword in Meta Description Tag & [8, 15, 19, 20, 25, 30] \\ Alt Text & [10, 13, 15, 23] \\ Unique - High Quality Content & [10, 13, 14, 20, 30] \\ Title Length/ Description Length & [7, 9, 11, 19, 22] \\ URL Length & [8, 9, 13, 19, 21, 22, 26, 30] \\ Text Length & [22, 26] \\ Text to Code Ratio & [22] \\ Internal Linking & [17, 20, 25] \\ Quality and Quantity of Backlinks & [7, 9, 12, 13, 15, 16, 17, 20, 25, 26, 30] \\ Website Structure & [7, 9, 14, 16, 19, 25] \\ Social Media Support & [7, 9, 12, 13, 16, 18, 23, 30] \\ Custom 404 page & [11, 15, 21] \\ SSL Certificate & [22, 26, 30] \\ Sitemap xml file & [7, 8, 11, 15, 21] \\ Domain age & [7, 9, 11, 17, 25] \\ Responsive layout & [14, 15, 20] \\ W3C Validity & [8] \\ Bounce Rate & [24, 25, 26] \\ Time on Site & [24] \\ \hline \hline \end{tabular}
\end{table} 
Table 1: Previous research on search engine optimization (SEO) factors. Keyword in h1/h2/h3 tag: Equally important on page intervention is the use of keywords in h1, h2, and h3 tags. This element is the second most important on page factor for higher ranking in the search results. The websites with optimized and targeted h1, h2, and h3 tags are ranked higher by the search engines. This happens as the crawler searches for information regarding the content structure of every website and the best way to extract this piece of information is to search on these tags. Skipping this part of optimization is a big obstacle on the way to higher ranking. Keyword density in text: The keyword density is the number of times the targeted keyword appears in the text of a website compared to the rest text. This on-page factor and the frequency of times the keyword appears in title tag are considered some of the most important factors when optimizing a website. The ideal keyword density range is 2 to 8% of the text of the page but this range is not universally true and is affected by other factors. We have to pinpoint that the keyword density should not have negative impact on the readability of the text because it is perceived as negative element of a website by the search engines  
Keyword in URL: It is easier for crawlers to trace a website if its URL contains the targeted keyword.