Mark Nottingham

linkedin profile
open source contributions


A contributor to development of the Internet and the Web for more than 20 years, Mark’s work focuses on HTTP, privacy and security, performance, and metadata. While primarily active in the IETF and W3C as venues for protocol development, he also has a strong interest in Internet governance as a form of transnational regulation.

Selected Activities and Affiliations

Selected Publications

Requests for Comments

See also Mark’s IETF profile for additional RFCs and drafts in progress.

IAB Statements

W3C TAG Findings

Commentary, Interviews and Press Mentions

See also mnot’s blog.

Employment History


Standards Lead (6/2022–)

Responsible for coordinating and supporting technical standards efforts across the company. Represents Cloudflare as a W3C Advisory Committee member, and serves on the W3C Board of Directors.


Senior Principal Engineer, Office of the CTO (8/2017–5/2022)

Lead and implemented the company’s external collaboration strategy, encompassing technical standards, open source, and industry research.

Launched efforts to improve interoperability and common functionality of content delivery networks; assisted the Web’s transition to HTTP/3, and contributed to continued viability of standards organisations.

Also coordinated with product by providing domain expertise in HTTP and other protocols.

Mozilla Corporation

Independant Contractor (5/2017–8/2017)

Reported to the Firefox CTO. Defined a targeted standardisation strategy; improved standards coordination and communication by piloting the Mozilla Specification Positions repository.

Akamai Technologies

Principal Architect, Web Division (9/2012–4/2017)

Devised and led Akamai’s standards participation strategy, primarily in the IETF and W3C. Served as an in-house expert on HTTP and the Web. Helped to grow Akamai’s IETF participation from one regular attendee to over ten.


Systems Architect, Subject Matter Expert (8/2011–8/2012)

Crafted and executed Rackspace’s cloud standards strategy. Improved Rackspace and OpenStack HTTP APIs.


Senior Principal Technical Yahoo! (1/2006–8/2011)

Defined internal standards for HTTP APIs for Yahoo!’s Media group (approximately 20 sites, including finance, movies and news). This work subsequently served as the basis for Yahoo!-wide standards.

Also served as a subject-matter expert on HTTP, assisting product groups in architecting, supporting and implementing services, evangelising its use both inside and outside of Yahoo!.

A major responsibility was developing, maintaining and supporting Yahoo’s internal build of the Squid Web Cache, including feature development, such as two new invalidation protocols and stale-while-revalidate. This software was used both for front end (e.g., Flickr, 1.8 billion+ hits/day) and back end (e.g., Sports, News, Mail, Frontpage) by more than 35 internal customers. Also assisted with road-mapping features for the newly open-sourced Apache Traffic Server.

Additionally, drove the company’s overall standards participation and strategy, representing it in the W3C Advisory Committee and elsewhere.

BEA Systems

Senior Principal Technologist, Office of the CTO (5/2002–1/2006)

Provided leadership in standards participation and input on the company’s overall technology strategy through development of Web services specifications, representation of the company to industry (through conference presentations and standards committees), and by liaising with partners, customers and internal resources.

Akamai Technologies

Research Scientist, Standards and Protocols (9/1999–3/2002)

Assisted various business units as the company’s resident expert in HTTP, XML, Web services and other Web technologies.

A primary deliverable was the design of Akamai’s “metadata” system (also known as “ARLv3”), allowing control of distributed server behaviour through a configuration file as well as request and response attributes.

Assisted in development of and edited the specification for Edge Side Includes - a platform for edge computing.

Merrill Lynch

Internet Project Manager (7/1998–9/1999)

Championed, designed and oversaw implementation of a worldwide enterprise content delivery network, wrote policy directives for architecture and deployment of caching Web proxies, and diagnosed and remedied performance issues with internal Web-based research delivery system.

Led Web development and support within the Australiasian region, working with management to develop a Intranet and Internet business plan. Also deployed and maintained enterprise firewall systems for Internet and extranet access.


Web Engineer (7/1996–3/1997)

Served as the Webmaster for this ISP, responsible for design of corporate identity, packaging, sales and support materials in addition to Web design. Also assisted in deployment of a large-scale Squid proxy cache cluster, and led a team to ship an Internet dialup client on CD-ROM.

La Trobe University, IT Services

Webmaster (12/1995–7/1996)

Oversaw of the University’s Web presence, including building and maintaining University Web servers and Harvest caching proxies, developing University-wide policies for Internet use in consultation with legal counsel, and designing the University Web site (which won Best Tertiary Education Site at the 1996 Australian Internet Awards).

Also planned and trained University staff on using the Internet and publishing on the Web.


Melbourne Law School

Graduate Diploma, Communications Law (2/2020–12/2022)

Studied law to better understand its impact upon and intersection with Internet governance. Coursework included Privacy Law, Competition in Digital Markets, Digital Trade, and Regulatory Policy and Practice.

Towson State University

BA, Interdisciplinary Studies (9/1989–5/1994)

Studied both fine art and journalistic photography, with additional coursework in graphic design, philosophy of aesthetics, physics of light, colour theory, and journalism.

Citizen of both the United States and Australia; resident in Australia.