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Reliability of domain authority scores calculated by Moz, Semrush, and Ahrefs

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dc.contributor.author Reyes-Lillo, Danilo
dc.contributor.author Morales-Vargas, Alejandro
dc.contributor.author Rovira, Cristòfol
dc.date.accessioned 2023-07-31T07:13:09Z
dc.date.available 2023-07-31T07:13:09Z
dc.date.issued 2023
dc.identifier.citation Reyes-Lillo D, Morales-Vargas A, Rovira C. Reliability of domain authority scores calculated by Moz, Semrush, and Ahrefs. Profesional de la información. 2023;32(4):e320403. DOI: 10.3145/epi.2023.jul.03
dc.identifier.issn 1699-2407
dc.identifier.uri http://hdl.handle.net/10230/57728
dc.description.abstract Search engine optimization (SEO), the practice of improving website visibility on search engines, faces the considerable challenges posed by the opacity of Google’s relevance ranking algorithm. Attempts at understanding how this algorithm operates have generated a sizeable number of studies in the worlds of both business and academia. Indeed, this research tradition has managed to present strong evidence regarding the participation of certain factors and their relative importance. For instance, there is a widespread consensus that domain authority is one of the key factors in optimizing positioning. This study seeks to determine the reliability of the domain authority scores provided by three leading platforms for SEO professionals: Moz’s Domain Authority, Semrush’s Authority Score, and Ahrefs’ Domain Rating, values obtained using different indices and applying different procedures. We hypothesize that the degree of coincidence is high, allowing us to deduce that the three tools are, therefore, highly reliable. The method of data triangulation is used to compare the values from these three sources. The degree of coincidence is determined using a statistical analysis based on Spearman’s correlation coefficient (rho). The sample of domains analyzed was selected from 61 neutral queries, which provided 16,937 results and a total of 3,151 domains. When examining the tools in pairs, the correlation coefficients obtained were above 0.9 in all cases. The rho coefficient of the global analysis was also 0.9. This confirms our hypothesis and demonstrates that the three platforms can be considered as providing reliable data. These results are clearly relevant given that SEO professionals depend heavily on domain authority values in their work, and the degree of reliability detected ensures that decision-making based on this indicator can be undertaken with confidence.
dc.description.sponsorship This work is part of the Project “Parameters and strategies to increase the relevance of media and digital communication in society: curation, visualisation and visibility (Cuvicom)”. PID2021-123579OB-I00. Ministry of Science and Innovation (Micinn), Spain.
dc.format.mimetype application/pdf
dc.language.iso eng
dc.publisher EPI (El Profesional de la Información)
dc.relation.ispartof Profesional de la información. 2023;32(4):e320403.
dc.rights 2023 Profesional de la información. Esta obra está bajo una licencia internacional Creative Commons Atribución 4.0.
dc.rights.uri http://creativecommons.org/licenses/by/4.0/
dc.title Reliability of domain authority scores calculated by Moz, Semrush, and Ahrefs
dc.type info:eu-repo/semantics/article
dc.identifier.doi http://dx.doi.org/10.3145/epi.2023.jul.03
dc.subject.keyword SEO
dc.subject.keyword Search Engine Optimization
dc.subject.keyword Domain authority
dc.subject.keyword Websites
dc.subject.keyword Web visibility
dc.subject.keyword PageRank
dc.subject.keyword Domain Authority
dc.subject.keyword Moz
dc.subject.keyword Authority Score
dc.subject.keyword Semrush
dc.subject.keyword Domain Rating
dc.subject.keyword Ahrefs
dc.subject.keyword Google
dc.relation.projectID info:eu-repo/grantAgreement/ES/3PE/PID2021-123579OB-I00
dc.rights.accessRights info:eu-repo/semantics/openAccess
dc.type.version info:eu-repo/semantics/publishedVersion


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