1. A website optimization system comprising at least one server with one or more processors and non-transitory computer-readable memory, the website optimization system performing a computer-implemented method for automatically assessing credibility of a plurality of websites by identifying, for each website of the plurality of websites, one or more elements rendered in presentation of the website that either increase or decrease the website's credibility, each website of the plurality of websites comprising a plurality of elements that are each defined by at least one attribute, the computer-implemented method comprising: grouping, by operation of the one or more processors, the plurality of websites to at least a first set of websites and a second set of websites, wherein each website of the first set of websites is composed of a first common set of elements defining a common presentation for the first set of websites in a browser, and wherein each website of the second set of websites is composed of a second common set of elements defining a common presentation for the second set of websites in a browser; presenting, from the website optimization system, a plurality of different attributes for each element of the first common set of elements as defined within different websites of the first set of websites; receiving to the non-transitory computer-readable memory, input from a set of users, the input quantifying credibility that each user of the set of users ascribes to each presented attribute for each element of the first common set of elements; processing, by operation of the one or more processors, said input to identify at least (i) a first attribute that a threshold number of users has quantified as credible for a particular element of the first common set of elements and (ii) a second attribute that the threshold number of users has quantified as not credible for the particular element; defining, by operation of the one or more processors, a credibility scoring rule that automatically quantifies a range of attributes definable for the particular element into different credibility scores based on the input from the set of users, wherein defining the credibility scoring rule comprises providing a first set of credibility scores to indicate that attributes in the range of attributes related to the first attribute increase credibility of the particular element and providing a second set of credibility scores to indicate that attributes in the range of attributes related to the second attribute decrease credibility of the particular element; aggregating to the non-transitory computer-readable memory, a new website that is not in the plurality of websites, the new website comprising the particular element with a particular attribute in the range of attributes; computing, by operation of the one or more processors, a credibility score quantifying an impact that rendering the particular element according to the particular attribute has on the overall credibility of the new website by inputting the particular attribute defined for the particular element of the new website to the credibility scoring rule and by receiving, in response to the inputting, the credibility score; and presenting the credibility score in conjunction with the particular element to facilitate optimization of the new website, wherein the credibility score identifies whether the particular element as rendered for display according to the particular attribute increases credibility of the new website by attracting more visitors to the new website or decreases credibility of the new website by discouraging visitors to the new website.
1. A website optimization system comprising at least one server with one or more processors and non-transitory computer-readable memory, the website optimization system performing a computer-implemented method for automatically assessing credibility of a plurality of websites by identifying, for each website of the plurality of websites, one or more elements rendered in presentation of the website that either increase or decrease the website's credibility, each website of the plurality of websites comprising a plurality of elements that are each defined by at least one attribute, the computer-implemented method comprising: grouping, by operation of the one or more processors, the plurality of websites to at least a first set of websites and a second set of websites, wherein each website of the first set of websites is composed of a first common set of elements defining a common presentation for the first set of websites in a browser, and wherein each website of the second set of websites is composed of a second common set of elements defining a common presentation for the second set of websites in a browser; presenting, from the website optimization system, a plurality of different attributes for each element of the first common set of elements as defined within different websites of the first set of websites; receiving to the non-transitory computer-readable memory, input from a set of users, the input quantifying credibility that each user of the set of users ascribes to each presented attribute for each element of the first common set of elements; processing, by operation of the one or more processors, said input to identify at least (i) a first attribute that a threshold number of users has quantified as credible for a particular element of the first common set of elements and (ii) a second attribute that the threshold number of users has quantified as not credible for the particular element; defining, by operation of the one or more processors, a credibility scoring rule that automatically quantifies a range of attributes definable for the particular element into different credibility scores based on the input from the set of users, wherein defining the credibility scoring rule comprises providing a first set of credibility scores to indicate that attributes in the range of attributes related to the first attribute increase credibility of the particular element and providing a second set of credibility scores to indicate that attributes in the range of attributes related to the second attribute decrease credibility of the particular element; aggregating to the non-transitory computer-readable memory, a new website that is not in the plurality of websites, the new website comprising the particular element with a particular attribute in the range of attributes; computing, by operation of the one or more processors, a credibility score quantifying an impact that rendering the particular element according to the particular attribute has on the overall credibility of the new website by inputting the particular attribute defined for the particular element of the new website to the credibility scoring rule and by receiving, in response to the inputting, the credibility score; and presenting the credibility score in conjunction with the particular element to facilitate optimization of the new website, wherein the credibility score identifies whether the particular element as rendered for display according to the particular attribute increases credibility of the new website by attracting more visitors to the new website or decreases credibility of the new website by discouraging visitors to the new website. 7. The computer-implemented method of claim 1 , wherein the particular element relates to advertisements in a website and the credibility scoring rule provides a credibility score quantifying the credibility of the new website based on the presence of advertisements in the new website.