IETF Statistics

Document formats and features in documents

“Document Stats -- What is Going on in the IETF?”


These formats are used:

  • Plain text only 10138 documents (92.57%).
  • PDF 809 documents (7.39%).
  • Postcript 55 documents (0.50%).


These features are used within the documents:

  • Packet formats in 1877 documents (17.14%).
  • Figures in 3937 documents (35.95%).
  • ABNF in 670 documents (6.12%).
  • XML in 320 documents (2.92%).
  • ASN.1 in 464 documents (4.24%).
  • C code in 277 documents (2.53%).
  • RFC 2119 keywords in 7150 documents (65.28%).
  • Security considerations section in 9001 documents (82.19%).
  • IANA considerations section in 5728 documents (52.30%).

The document feature recognition is based on heuristics and is inherently unreliable.

Data Freshness and Source

This is a part of a statistics report generated by authorstats on 2022-12-03.

All data in this report is retrieved from public sources, such as publications published at the IETF. The tool and the report are independent of the IETF, however.

Data Accuracy and Privacy

The data or the report may contain inaccuracies.

Note that we do not hold any per-person information beyond what is visible in publicly submitted documents at the IETF. However, if this information is about you, we do appreciate corrections which we will try to incorporate. Similarly, we would be happy to remove your information if you so desire. In either case, send mail to jari.arkko(at) to contact the developer. Please use a subject line that includes the word authorstats. Our privacy policy can be found in here.