This paper discusses the resource portal of the
analysis of the Borneo’s Biodiversity Information System
(BBIS) from the point of view of the characteristics of
efficiency and reliability performance. Data collection methods
and tools use the observation approach that simulates 100
simultaneous users, logging every 10 seconds between random
clicks on the URL site. Efficiency testing results that measured
27 recommendations from PageSpeed measuring instruments
and 19 recommendation parameters from YSlow, obtained
average scores on grade A. However, there were still 6
parameters related to system resource issues with grade F
scores and these parameters were significant effects the
reliability value. Reliability test results referring to Jacob
Nelson's equation approaches and Standard Telcordia
reference. The result shows that the value of R = 0.988967 or
the percentage of the reliability value is 98.89% and r = 0.011
or the error rate is 1.1%. and the user threshold test results are
found when the number increases to 500 users. The success of
efficiency testing parameters significantly affect the percentage of performance reliability.