{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,9]],"date-time":"2026-09-09T05:09:52Z","timestamp":1788930592747,"version":"build-2803163510"},"reference-count":60,"publisher":"MDPI AG","issue":"9","license":[{"start":{"date-parts":[[2026,9,7]],"date-time":"2026-09-07T00:00:00Z","timestamp":1788739200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100000286","name":"British Academy","doi-asserted-by":"publisher","award":["SRG25\\250705"],"award-info":[{"award-number":["SRG25\\250705"]}],"id":[{"id":"10.13039\/501100000286","id-type":"DOI","asserted-by":"publisher"}]},{"award":["SRG25\\250705"],"award-info":[{"award-number":["SRG25\\250705"]}],"id":[{"id":"https:\/\/ror.org\/0302b4677","id-type":"ROR","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Behav. Sci.","Behavioral Sciences"],"abstract":"<jats:p>Online commercial sex platforms have become key environments in which potential indicators relevant to technology-facilitated sexual exploitation (TFSE) and technology-facilitated gender-based violence (TFGBV) may be observed. Current language models and computational approaches to identifying potential exploitation often assume that behavioural indicators (e.g., geographical mobility, pricing, and other linguistic markers) are easily accessible and comparable across online spaces and jurisdictions. This study challenges this assumption by showing that platform design largely shapes the variables and indicators that can be observed in these spaces. Drawing on a large-scale dataset of 1.9 million profiles (after cleaning) from two major online commercial-sex platforms, AdultWork (United Kingdom) and CallEscort (United States), the research examines how potential exploitation-related indicators may be identified and interpreted across platform architectures. Through cross-platform mapping, significant misalignments in data visibility and comparability were highlighted for demographic characteristics, mobility data, and services offered. To address comparability challenges, the study introduces a platform-mediated visibility framework to explain how platform design shapes the visibility, interpretation, and comparability of potential indicators relevant to TFSE and TFGBV. The framework provides a methodological basis for interpreting exploitation-related indicators across different platform architectures and underscores the value of platform-aware approaches to safeguarding and prevention. In collaboration with US and UK law enforcement and Non-Governmental Oranization (NGO) partners, the study advocates for proactive and tailored prevention strategies that account for platform architecture while recognising that coordinated activity and potential indicators do not, in isolation, establish exploitation, trafficking or criminal behaviour.<\/jats:p>","DOI":"10.3390\/bs16091591","type":"journal-article","created":{"date-parts":[[2026,9,7]],"date-time":"2026-09-07T13:53:28Z","timestamp":1788789208000},"page":"1591","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Platform-Mediated Visibility of Exploitation Indicators: A Cross-Platform Analysis of AdultWork (UK) and CallEscort (US)"],"prefix":"10.3390","volume":"16","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-6648-0551","authenticated-orcid":false,"given":"Arianna","family":"Barbin","sequence":"first","affiliation":[{"name":"School of Psychology, Faculty of Media, Science, & Technology, Bournemouth University, Poole BH12 5BB, UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0928-9990","authenticated-orcid":false,"given":"Gregory J.","family":"Bott","sequence":"additional","affiliation":[{"name":"Department of Information Systems, Statistics, and Management Science, Culverhouse College of Business, The University of Alabama, Tuscaloosa, AL 35487, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3036-7335","authenticated-orcid":false,"given":"Nickolas K.","family":"Freeman","sequence":"additional","affiliation":[{"name":"Department of Information Systems, Statistics, and Management Science, Culverhouse College of Business, The University of Alabama, Tuscaloosa, AL 35487, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1963-8808","authenticated-orcid":false,"given":"Sarah","family":"Hambidge","sequence":"additional","affiliation":[{"name":"School of Psychology, Faculty of Media, Science, & Technology, Bournemouth University, Poole BH12 5BB, UK"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2026,9,7]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","unstructured":"Antonopoulos, G. A., Di Nicola, A., Rusev, A., and Terenghi, F. (2019). Human trafficking finances: Evidence from three European countries, Springer International Publishing.","DOI":"10.1007\/978-3-030-17809-3"},{"key":"ref_2","doi-asserted-by":"crossref","unstructured":"Ben\u00edtez-Hidalgo, V., Pastor-Moreno, G., Ruiz-P\u00e9rez, I., and Amaya-Santos, S. (2026). Technology-facilitated sexual violence against women and its health impact: A mixed-methods systematic review. BMC Public Health, 26, (1).","DOI":"10.1186\/s12889-026-26260-4"},{"key":"ref_3","first-page":"1","article-title":"A collaborative approach to building a human trafficking data ecosystem: A blueprint for shared governance, technology, and terminology","volume":"8","author":"Garrido","year":"2026","journal-title":"Harvard Data Science Review"},{"key":"ref_4","doi-asserted-by":"crossref","unstructured":"Bowker, G. C., and Star, S. L. (1999). Sorting things out: Classification and its consequences, The MIT Press.","DOI":"10.7551\/mitpress\/6352.001.0001"},{"key":"ref_5","unstructured":"Burgess, J., Marwick, A., and Poell, T. (2018). The affordances of social media platforms. The affordances of social media platforms, SAGE Publications Ltd."},{"key":"ref_6","doi-asserted-by":"crossref","first-page":"9","DOI":"10.1007\/s10611-019-09836-7","article-title":"Human trafficking for sex, labour and domestic servitude: How do key trafficking types compare and what are their predictors?","volume":"72","author":"Cockbain","year":"2019","journal-title":"Crime, Law and Social Change"},{"key":"ref_7","doi-asserted-by":"crossref","first-page":"284","DOI":"10.1108\/JEPP-03-2019-0009","article-title":"Sex work and online platforms: What should regulation do?","volume":"10","author":"Cowen","year":"2021","journal-title":"Journal of Entrepreneurship and Public Policy"},{"key":"ref_8","unstructured":"Crown Prosecution Service (2026, September 02). Modern slavery and human trafficking: Offences and defences, including the section 45 defence, Available online: https:\/\/www.cps.gov.uk\/prosecution-guidance\/modern-slavery-and-human-trafficking-offences-and-defences-including-section."},{"key":"ref_9","doi-asserted-by":"crossref","first-page":"47","DOI":"10.1016\/j.techsoc.2017.11.004","article-title":"Behind the screen: Commercial sex, digital spaces and working online","volume":"53","author":"Cunningham","year":"2018","journal-title":"Technology in Society"},{"key":"ref_10","unstructured":"Department for Science, Innovation &Technology (2026, September 02). DSIT annual report and accounts 2025 to 2026, Available online: https:\/\/www.gov.uk\/government\/publications\/dsit-annual-report-and-accounts-2025-to-2026\/dsit-annual-report-and-accounts-2025-to-2026."},{"key":"ref_11","first-page":"e22","article-title":"Sex trafficking of women and girls","volume":"6","author":"Deshpande","year":"2013","journal-title":"Reviews in Obstetrics & Gynecology"},{"key":"ref_12","doi-asserted-by":"crossref","unstructured":"de Vries, I., and Cockbain, E. (2024). Governing through indicators: Structural biases and empirical challenges in indicator-based approaches to anti-trafficking policy, practice, and research. Modern slavery in global context: Human rights, law, and society, Policy Press EBooks.","DOI":"10.1332\/policypress\/9781529224702.003.0006"},{"key":"ref_13","doi-asserted-by":"crossref","unstructured":"Diaz, M., and Panangadan, A. (2020). Natural language-based integration of online review datasets for identification of sex trafficking businesses. 2020 IEEE 21st international conference on information reuse and integration for data science: IRI 2020: Proceedings: Virtual conference, 11\u201313 August 2020, IEEE.","DOI":"10.1109\/IRI49571.2020.00044"},{"key":"ref_14","doi-asserted-by":"crossref","first-page":"101466","DOI":"10.1016\/j.copsyc.2022.101466","article-title":"Digital sexual identities: Between empowerment and disempowerment","volume":"48","author":"Bhana","year":"2022","journal-title":"Current Opinion in Psychology"},{"key":"ref_15","doi-asserted-by":"crossref","first-page":"65","DOI":"10.1080\/23322705.2015.1015342","article-title":"Leveraging publicly available data to discern patterns of human-trafficking activity","volume":"1","author":"Dubrawski","year":"2015","journal-title":"Journal of Human Trafficking"},{"key":"ref_16","doi-asserted-by":"crossref","first-page":"667","DOI":"10.1177\/0306312711413314","article-title":"Science friction: Data, metadata, and collaboration","volume":"41","author":"Edwards","year":"2011","journal-title":"Social Studies of Science"},{"key":"ref_17","first-page":"133","article-title":"Linking multisite sex ad data at the individual level to aid counter-trafficking investigations","volume":"28","author":"Freeman","year":"2026","journal-title":"Journal of Human Trafficking"},{"key":"ref_18","unstructured":"Freeman, N., Nguyen, T., Bott, G., Parton, J., and Francel, C. (2025). Language models for adult service website text analysis. arXiv."},{"key":"ref_19","doi-asserted-by":"crossref","first-page":"474","DOI":"10.1287\/inte.2022.1126","article-title":"Collaborating with local and federal law enforcement for disrupting sex trafficking networks","volume":"52","author":"Freeman","year":"2022","journal-title":"INFORMS Journal on Applied Analytics"},{"key":"ref_20","doi-asserted-by":"crossref","unstructured":"Gerry, F., and Shaw, P. (2019). Emerging and future technology trends in the links between cybercrime, trafficking in persons and smuggling of migrants. 2019 first international conference on transdisciplinary AI (TransAI), IEEE.","DOI":"10.1109\/TransAI46475.2019.00009"},{"key":"ref_21","doi-asserted-by":"crossref","first-page":"497","DOI":"10.1080\/23322705.2022.2034378","article-title":"Sex trafficking and technology: A systematic review of recruitment and exploitation","volume":"10","author":"Gezinski","year":"2024","journal-title":"Journal of Human Trafficking"},{"key":"ref_22","doi-asserted-by":"crossref","unstructured":"Gillespie, T. (2018). Custodians of the internet: Platforms, content moderation, and the hidden decisions that shape social media, Yale University Press.","DOI":"10.12987\/9780300235029"},{"key":"ref_23","doi-asserted-by":"crossref","unstructured":"Giommoni, L. (2024). Why we cannot identify human trafficking from online advertisements. Journal of Human Trafficking, 1\u201315.","DOI":"10.1080\/23322705.2024.2435198"},{"key":"ref_24","doi-asserted-by":"crossref","first-page":"10","DOI":"10.1007\/s12117-021-09431-0","article-title":"Identifying human trafficking indicators in the UK online sex market","volume":"27","author":"Giommoni","year":"2024","journal-title":"Trends in Organized Crime"},{"key":"ref_25","doi-asserted-by":"crossref","first-page":"1139","DOI":"10.1007\/s42001-024-00260-z","article-title":"The coordination network toolkit: A framework for detecting and analysing coordinated behaviour on social media","volume":"7","author":"Graham","year":"2024","journal-title":"Journal of Computational Social Science"},{"key":"ref_26","unstructured":"Hall, R. (2026, September 02). Family court judges use victim-blaming language in domestic abuse cases, finds AI project, The Guardian, Available online: https:\/\/www.theguardian.com\/law\/2024\/oct\/08\/family-court-judges-victim-blaming-language-domestic-abuse-cases-ai-project?."},{"key":"ref_27","doi-asserted-by":"crossref","unstructured":"Hein, D., Christie, A., Holcomb, M., Xie, B., Jain, A. J., Vento, J., Rakheja, N., Hamza Shakur, A., Christley, S., Cowell, L. G., Brugarolas, J., Jamieson, A., and Kapur, P. (2025). Prompts to table: Specification and iterative refinement for clinical information extraction with large language models. medRxiv: The Preprint Server for Health Sciences.","DOI":"10.1101\/2025.02.11.25322107"},{"key":"ref_28","doi-asserted-by":"crossref","first-page":"195","DOI":"10.1177\/1524838016650189","article-title":"Technology-facilitated sexual violence: A literature review of empirical research","volume":"19","author":"Henry","year":"2018","journal-title":"Trauma, Violence & Abuse"},{"key":"ref_29","unstructured":"herEthical AI (2026, September 02). Harmful behaviour detection in language, Available online: https:\/\/www.herethical.ai\/."},{"key":"ref_30","unstructured":"Hester, M., Mulvihill, N., Matolcsi, A., Sanchez, A. L., and Walker, S. J. (2026, September 02). The nature and prevalence of prostitution and sex work in England and Wales today, Available online: https:\/\/assets.publishing.service.gov.uk\/media\/5db84ad1e5274a4aa81178e1\/Prostitution_and_Sex_Work_Report.pdf."},{"key":"ref_31","doi-asserted-by":"crossref","unstructured":"Ibanez, M., and Suthers, D. D. (2014). Detection of domestic human trafficking indicators and movement trends using content available on open internet sources. 2014 47th Hawaii international conference on system sciences, IEEE.","DOI":"10.1109\/HICSS.2014.200"},{"key":"ref_32","doi-asserted-by":"crossref","unstructured":"International Labour Organization, Walk Free, and International Organization for Migration (2022). Global estimates of modern slavery: Forced labour and forced marriage, International Labour Organization. Available online: https:\/\/www.ilo.org\/sites\/default\/files\/2025-09\/ILO_GEMS-2022_Report_EN_Web.pdf.","DOI":"10.54394\/CHUI5986"},{"key":"ref_33","doi-asserted-by":"crossref","first-page":"1110","DOI":"10.1111\/poms.13294","article-title":"Cracking sex trafficking: Data analysis, pattern recognition, and path prediction","volume":"30","author":"Keskin","year":"2021","journal-title":"Production and Operations Management"},{"key":"ref_34","unstructured":"(2026, September 02). Kids online safety act, S. 1748, 119th Congress, Available online: https:\/\/www.congress.gov\/bill\/119th-congress\/senate-bill\/1748."},{"key":"ref_35","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1177\/2053951714528481","article-title":"Big data, new epistemologies and paradigm shifts","volume":"1","author":"Kitchin","year":"2014","journal-title":"Big Data & Society"},{"key":"ref_36","doi-asserted-by":"crossref","first-page":"81","DOI":"10.1177\/17488958241245287","article-title":"The geographies and complexities of online networks in the off-street sex market","volume":"25","author":"Kjellgren","year":"2024","journal-title":"Criminology & Criminal Justice"},{"key":"ref_37","doi-asserted-by":"crossref","unstructured":"Koenig, B., Murphy, A., Johnston, S., Pearson, J., Knight, R., Gilbert, M., Shannon, K., and Kr\u00fcsi, A. (2022). Digital exclusion and the structural barriers to safety strategies among men and non-binary sex workers who solicit clients online. Social Sciences, 11, (7).","DOI":"10.3390\/socsci11070318"},{"key":"ref_38","first-page":"1","article-title":"Human trafficking online: The role of social networking sites and online classifieds","volume":"2045851","author":"Latonero","year":"2011","journal-title":"SSRN Electronic Journal"},{"key":"ref_39","doi-asserted-by":"crossref","first-page":"34","DOI":"10.1007\/s12117-021-09414-1","article-title":"Identifying sex trafficking in adult services websites: An exploratory study with a British police force","volume":"27","author":"Moretti","year":"2024","journal-title":"Trends in Organized Crime"},{"key":"ref_40","doi-asserted-by":"crossref","first-page":"107046","DOI":"10.1016\/j.chiabu.2024.107046","article-title":"A content analysis of metrics on online child sexual exploitation and abuse used by online content-sharing services","volume":"157","author":"Lu","year":"2024","journal-title":"Child Abuse & Neglect"},{"key":"ref_41","doi-asserted-by":"crossref","unstructured":"Lugo-Graulich, K., Meyer, L. F., Souza, K., Tapp, S. N., Maryfield, B., and Bostwick, L. (2024). Improving sex trafficking victim identification: Indicators of trafficking in online escort ads. Journal of Human Trafficking, 1\u201322.","DOI":"10.1080\/23322705.2024.2349447"},{"key":"ref_42","doi-asserted-by":"crossref","unstructured":"Meyer, L. F., and Shelley, L. I. (2020). Human trafficking network investigations: The role of open source intelligence and large-scale data analytics in investigating organized crime. International Journal on Criminology, 7, (2).","DOI":"10.18278\/ijc.7.2.8"},{"key":"ref_43","doi-asserted-by":"crossref","first-page":"2303","DOI":"10.1080\/1369118X.2024.2435993","article-title":"Sex work online: Professionalism between affordances and constraints","volume":"28","author":"Pajnik","year":"2025","journal-title":"Information, Communication & Society"},{"key":"ref_44","doi-asserted-by":"crossref","first-page":"257","DOI":"10.1080\/17544750.2019.1572633","article-title":"WeChat as infrastructure: The techno-nationalist shaping of Chinese digital platforms","volume":"12","author":"Plantin","year":"2019","journal-title":"Chinese Journal of Communication"},{"key":"ref_45","unstructured":"Polaris Project (2017). The typology of modern slavery: Defining sex and labor trafficking in the United States, Polaris Project. Available online: https:\/\/polarisproject.org\/wp-content\/uploads\/2019\/09\/Polaris-Typology-of-Modern-Slavery-1.pdf."},{"key":"ref_46","doi-asserted-by":"crossref","unstructured":"Portnoff, R. S., Huang, D. Y., Doerfler, P., Afroz, S., and McCoy, D. (2017). Backpage and Bitcoin: Uncovering human traffickers. Proceedings of the 23rd ACM SIGKDD international conference on knowledge discovery and data mining, ACM.","DOI":"10.1145\/3097983.3098082"},{"key":"ref_47","doi-asserted-by":"crossref","first-page":"335","DOI":"10.1007\/s10610-020-09438-3","article-title":"Orienting the development of crime analysis processes in police organisations covering the digital transformations of fraud mechanisms","volume":"26","author":"Rossy","year":"2020","journal-title":"European Journal on Criminal Policy and Research"},{"key":"ref_48","unstructured":"Sanders, T., and Keighley, R. (2023). The role of adult service websites in addressing modern slavery (Research Report), University of Leicester. Available online: https:\/\/www.unseenuk.org\/wp-content\/uploads\/2023\/11\/AWS-report-FINAL.pdf."},{"key":"ref_49","doi-asserted-by":"crossref","first-page":"94","DOI":"10.1108\/PAP-10-2018-011","article-title":"The measuring and monitoring of human trafficking","volume":"21","author":"Saner","year":"2018","journal-title":"Public Administration and Policy"},{"key":"ref_50","unstructured":"Santini, R. M., Leal, H., Salles, D., Belis\u00e1rio, A., Mattos, B., and Pinho, D. (2026). Data not found: Social media data transparency for information integrity, Minderoo Centre for Technology and Democracy."},{"key":"ref_51","doi-asserted-by":"crossref","first-page":"446","DOI":"10.1177\/0032258X251372357","article-title":"RUDI: An evidence-based police-centric guide for approaching the development of algorithmic models in policing","volume":"99","author":"Sayer","year":"2025","journal-title":"The Police Journal: Theory, Practice and Principles"},{"key":"ref_52","doi-asserted-by":"crossref","first-page":"1614","DOI":"10.1177\/15248380231191189","article-title":"Technology-facilitated sexual violence and abuse in low and middle-income countries: A scoping review","volume":"25","author":"Sheikh","year":"2024","journal-title":"Trauma, Violence & Abuse"},{"key":"ref_53","doi-asserted-by":"crossref","first-page":"100312","DOI":"10.1016\/j.osnem.2025.100312","article-title":"Community detection in multimedia social networks using an attributed graph model","volume":"46","year":"2025","journal-title":"Online Social Networks and Media"},{"key":"ref_54","doi-asserted-by":"crossref","unstructured":"Stephenson, S., Ramjit, L., Ristenpart, T., and Dell, N. (2025). Digital technologies and human trafficking: Combating coercive control and navigating digital autonomy. Proceedings of the 2025 CHI conference on human factors in computing systems, Association for Computing Machinery.","DOI":"10.1145\/3706598.3713544"},{"key":"ref_55","doi-asserted-by":"crossref","first-page":"460","DOI":"10.3390\/make5020028","article-title":"A multi-input machine learning approach to classifying sex trafficking from online escort advertisements","volume":"5","author":"Summers","year":"2023","journal-title":"Machine Learning and Knowledge Extraction"},{"key":"ref_56","doi-asserted-by":"crossref","first-page":"277","DOI":"10.1177\/13634607211023013","article-title":"Platforms, sex work and their interconnectedness","volume":"26","author":"Swords","year":"2021","journal-title":"Sexualities"},{"key":"ref_57","doi-asserted-by":"crossref","first-page":"100792","DOI":"10.1016\/j.ijlcj.2025.100792","article-title":"Revealing victimization and sexual exploitation through content analysis of online sexual service ads in Spain: A mixed-methods study","volume":"83","author":"Balcells","year":"2025","journal-title":"International Journal of Law, Crime and Justice"},{"key":"ref_58","unstructured":"University of Melbourne, and United Nations Population Fund (2023). Measuring technology-facilitated gender-based violence: A discussion paper, University of Melbourne and United Nations Population Fund. Available online: https:\/\/www.unfpa.org\/sites\/default\/files\/pub-pdf\/UNFPA_Measuring%20TF%20GBV_%20A%20Discussion%20Paper_FINAL.pdf."},{"key":"ref_59","doi-asserted-by":"crossref","first-page":"197","DOI":"10.24908\/ss.v12i2.4776","article-title":"Datafication, dataism and dataveillance: Big data between scientific paradigm and ideology","volume":"12","year":"2014","journal-title":"Surveillance & Society"},{"key":"ref_60","doi-asserted-by":"crossref","first-page":"100395","DOI":"10.1016\/j.ijlcj.2020.100395","article-title":"Separate routes, similar crimes? Conceptualising differences between domestic and international sex traffickers in the United States","volume":"62","author":"Jeglic","year":"2020","journal-title":"International Journal of Law, Crime and Justice"}],"container-title":["Behavioral Sciences"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/2076-328X\/16\/9\/1591\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,9,9]],"date-time":"2026-09-09T04:34:50Z","timestamp":1788928490000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/2076-328X\/16\/9\/1591"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2026,9,7]]},"references-count":60,"journal-issue":{"issue":"9","published-online":{"date-parts":[[2026,9]]}},"alternative-id":["bs16091591"],"URL":"https:\/\/doi.org\/10.3390\/bs16091591","relation":{},"ISSN":["2076-328X"],"issn-type":[{"value":"2076-328X","type":"electronic"}],"subject":[],"published":{"date-parts":[[2026,9,7]]}}}