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A First Look at the African’s ccTLDs Technical Environment

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Towards new e-Infrastructure and e-Services for Developing Countries (AFRICOMM 2020)


Leveraging multiple datasets, we evaluate the current status of African ccTLDs technical environment with regard to best practices. Compared to the top 10 ccTLDs, African ccTLDs appear to have enough IPs to maintain service availability while handling authoritative DNS queries. With regard to the early stage of IPv6 deployment in the AFRINIC region, it is interesting to note that 94% of African ccTLDs support IPv6. This is due to the huge adoption of out of region or offshore DNS anycast provider. The majority (84%) of African anycast traffic is handled by non-profit foundations and/or organisations using resources from other RIRs such as RIPE-NCC and ARIN. Furthermore, less than 30% (16) of African ccTLD have signed their zone. From this group, the majority is using the recommended algorithm RSASHA256 (Algorithm 8) as suggested by BCP 14. Strangely some African ccTLDs lack basic DNS configuration such as missing PTR records, lame delegation, EDNS compliance and consistent serial numbers. These misconfigurations can be easily fixed with consistent monitoring or the use of modern automated registry software which comes with internal checks. Overall, African ccTLDs are characterised by the usage of out of region resources.

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  1. 1.

    AFRINIC Lame Delegation Policy -

  2. 2.

  3. 3.

  4. 4.

  5. 5.

  6. 6.

  7. 7.

  8. 8.

  9. 9.

    Afnic is the registry for domain names

  10. 10.

    IIS is the registry for domain names

  11. 11.

  12. 12.

    A lame delegation, also known as a lame response, is a type of error that results when a name server is designated as the authoritative server for a domain name for which it does not have authoritative data or is unreachable.

  13. 13.

  14. 14.

  15. 15.

  16. 16.

  17. 17.

  18. 18.

  19. 19.

  20. 20.


  1. The DNS Forum’s Journey, June 2020.

  2. The DNS Forum’s Journey, July 2020.

  3. The 2016 African Domain Name System Market Study, June 2020.

  4. The Global Domain Name Market in 2019, June 2020.

  5. Gupta, A., Calder, M., Feamster, N., Chetty, M., Calandro, E., Katz-Bassett, E.: Peering at the internet’s frontier: a first look at ISP interconnectivity in Africa. In: Faloutsos, M., Kuzmanovic, A. (eds.) PAM 2014. LNCS, vol. 8362, pp. 204–213. Springer, Cham (2014).

    Chapter  Google Scholar 

  6. Livadariu, I., Elmokashfi, A., Dhamdhere, A.: Measuring IPv6 adoption in Africa. In: Odumuyiwa, V., Adegboyega, O., Uwadia, C. (eds.) AFRICOMM 2017. LNICST, vol. 250, pp. 345–351. Springer, Cham (2018).

    Chapter  Google Scholar 

  7. Chavula, J., Feamster, N., Bagula, A., Suleman, H.: Quantifying the effects of circuitous routes on the latency of intra-Africa internet traffic: a study of research and education networks. In: Nungu, A., Pehrson, B., Sansa-Otim, J. (eds.) AFRICOMM 2014. LNICST, vol. 147, pp. 64–73. Springer, Cham (2015).

    Chapter  Google Scholar 

  8. Fanou, R., Francois, P., Aben, E.: On the diversity of interdomain routing in Africa. In: Mirkovic, J., Liu, Y. (eds.) PAM 2015. LNCS, vol. 8995, pp. 41–54. Springer, Cham (2015).

    Chapter  Google Scholar 

  9. Chavula, J., Phokeer, A., Formoso, A., Feamster, N.: Insight into Africa’s country-level latencies. In: 2017 IEEE AFRICON, pp. 938–944. IEEE (2017)

    Google Scholar 

  10. Formoso, A., Chavula, A., Phokeer, A., Sathiaseelan, A., Tyson, G.: Deep diving into Africa’s inter-country latencies. In: IEEE INFOCOM 2018-IEEE Conference on Computer Communications, pp. 2231–2239. IEEE (2018)

    Google Scholar 

  11. Liang, J., Jiang, J., Duan, H., Li, K., Wu, J.: Measuring query latency of top level DNS servers. In: Roughan, M., Chang, R. (eds.) PAM 2013. LNCS, vol. 7799, pp. 145–154. Springer, Heidelberg (2013).

    Chapter  Google Scholar 

  12. Nakahira, K.T., Hoshino, T., Mikami, Y.: Geographic locations of web servers. In: Proceedings of the 15th International Conference on World Wide Web, pp. 989–990 (2006)

    Google Scholar 

  13. Zaki, Y., Chen, J., Pötsch, T., Ahmad, T., Subramanian, L.: Dissecting web latency in Ghana. In: Proceedings of the 2014 Conference on Internet Measurement Conference, pp. 241–248 (2014)

    Google Scholar 

  14. Fanou, R., Tyson, G., Fernandes, E.L., Francois, P., Valera, F., Sathiaseelan, A.: Exploring and analysing the African web ecosystem. ACM Trans. Web (TWEB) 12(4), 1–26 (2018)

    Article  Google Scholar 

  15. Pappas, V., Wessels, D., Massey, D., Songwu, L., Terzis, A., Zhang, L.: Impact of configuration errors on DNS robustness. IEEE J. Sel. Areas Commun. 27(3), 275–290 (2009)

    Article  Google Scholar 

  16. Phokeer, A., Aina, A., Johnson, D.: DNS lame delegations: a case-study of public reverse DNS records in the African region. In: Bissyande, T.F., Sie, O. (eds.) AFRICOMM 2016. LNICST, vol. 208, pp. 232–242. Springer, Cham (2018).

    Chapter  Google Scholar 

  17. IANA WHOIS Service, July 2020.

  18. NRO Extended Allocation and Assignment Reports, June 2020.

  19. Member States, June 2020.

  20. Cicalese, D., Augé, J., Joumblatt, D., Friedman, T., Rossi, D.: Characterizing IPv4 anycast adoption and deployment. In: Proceedings of the 11th ACM Conference on Emerging Networking Experiments and Technologies, pp. 1–13 (2015)

    Google Scholar 

  21. Bian, R., Hao, S., Wang, H., Dhamdere, A., Dainotti, A., Cotton, C.: Towards passive analysis of anycast in global routing: unintended impact of remote peering. ACM SIGCOMM Comput. Commun. Rev. 49(3), 18–25 (2019)

    Article  Google Scholar 

  22. Deering, S.E., Johnson, D.B.: Reserved IPv6 Subnet Anycast Addresses. RFC 2526, March 1999

    Google Scholar 

  23. Rose, S., Larson, M., Massey, D., Austein, R., Arends, R.: Resource Records for the DNS Security Extensions. RFC 4034, March 2005

    Google Scholar 

  24. TLD DNSSEC deployment maps and CSV files as of 13-07-2020, July 2020.

  25. Overview of get DNS, June 2020.

  26. Zonemaster, June 2020.

  27. Wallstrom, P., Schlyter, J.: DNS Delegation Requirements. Internet-Draft draft-wallstrom-dnsop-dns-delegation-requirements-03, Internet Engineering Task Force, October 2016. Work in Progress

    Google Scholar 

  28. Patton, M.A., Bradner, S.O., Elz, R., Bush, R.: Selection and Operation of Secondary DNS Servers. RFC 2182, July 1997

    Google Scholar 

  29. Domain names - concepts and facilities. RFC 1034, November 1987

    Google Scholar 

  30. The Verisign Domain Name Industry Brief, March 2020.

  31. DNS Purchasing Guide for Government Procurement Officers, July 2020.

  32. Wouters, P., Surý, O.: Algorithm Implementation Requirements and Usage Guidance for DNSSEC. RFC 8624, June 2019

    Google Scholar 

  33. SHA-1 chosen prefix collisions and DNSSEC, June 2020.

  34. Bradner, S.O.: Key words for use in RFCs to Indicate Requirement Levels. RFC 2119, March 1997

    Google Scholar 

  35. Severity Levels, June 2020.

  36. Mapping test messages to test module, June 2020.

  37. Barr, D.: Common DNS Operational and Configuration Errors. RFC 1912, February 1996

    Google Scholar 

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We would like to thank our shepherd and the anonymous reviewers for their valuable detailed feedback. We are indebted to Barrack Otieno from AfTLD for his detailed comments on how this work fits into AfTLD research strategy.

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Correspondence to Ahmed Elmokashfi .

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Arouna, A., Phokeer, A., Elmokashfi, A. (2021). A First Look at the African’s ccTLDs Technical Environment. In: Zitouni, R., Phokeer, A., Chavula, J., Elmokashfi, A., Gueye, A., Benamar, N. (eds) Towards new e-Infrastructure and e-Services for Developing Countries. AFRICOMM 2020. Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering, vol 361. Springer, Cham.

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