We’re proud to support the search marketing community through our carefully chosen ambassadors. These senior search specialists are active participants in the larger community who include Oncrawl among their indispensable SEO tools and who share our values and vision.
Independent SEO Consultant – Domain SEO – United States
Bill Hartzer is an independent SEO Consultant. He relies on his 20 years of direct SEO experience to provide technical SEO audits of websites, as well as technical link audits and link cleanups of websites. Bill Hartzer is known worldwide for his research on the topic of search engine optimization and the New gTLD domain names, as well as Dot Brand domain names. He provides research and marketing of white papers and case studies related to the New gTLDs, as well as consulting related to domain migrations. Bill is a frequent speaker and expert discussion panel participant at various search engine marketing and internet marketing conferences and events such as the SMX and the PubCon conferences. Bill writes frequently for Practical eCommerce magazine, Rocks Digital, and is regularly published in many other online publications. He maintains a blog on his website, and is the co-founder of the Dallas/Fort Worth Search Engine Marketing Association.
SEO Auditor & Consultant, Speaker – Online Marketing – Spain
Fernando is the co-founder and SEO Manager at Grupo Raíz. SEO Auditor & consultant, search engine optimization specialist, high experimented in Marketing Online. Investor (safecont, qashops, OPTI, farmacia.bio), SEMPO member and Señor Muñoz founder, he is a regular speaker in the most important Spanish events about SEO or Marketing Online. He is also a former master class professor for Pompeu Fabra University, MIB and KSchool SEO courses.
Senior Technical SEO at Canon Europe, Speaker – United Kingdom
Omi is a seasoned international speaker and is known in the industry for his humour and ability to deliver actionable insights that audiences can immediately start using. From SEO consulting with some of the world’s largest telecommunications and travel companies to managing in-house SEO at HostelWorld and Daily Mail, Omi loves diving into complex data and finding the bright spots. Currently, Omi is a Senior Technical SEO at Canon Europe.
Serbay Arda Ayzit
Managing Director at Optdcom – Content and Digital Marketing – Turkey
Serbay Arda Ayzit has a B.A in Business Administration and an MBA in Marketing Communications Management. With his passion for the internet and his expertise in marketing, he was among the first 20 to become an AdWords certified professional and a top contributor to Google AdWords official forum. He started his career in 2007 and managed digital marketing activities on the brand side for two years. After that between 2009 – 2018, Serbay was the head of SEO for one of the first SEM agencies in Turkey, where he has consulted 2OO+ clients, e.g., Turkish Airlines, Samsung, Dominos, and Allianz, Loreal, Ebay Turkey, etc.. In 2014, he launched a content marketing company, Contentus, which creates content for brands like Mini, BMW, Jaguar. Now he is working as Managing Director at Optdcom (Digital marketing agency) and creating overall digital marketing strategies for brands like Carrefour, Pladis group (Owns Godiva, Mc Vities, Ulker) and many more.
Founder, INTERDIGITAL.es and ClinicSEO – Spain
Kico founded the digital agency INTERDIGITAL.es 20 years ago in Barcelona, when the internet revolution had not exploded yet in Spain. He merges his technical studies with the marketing knowledge he acquired since then, creating a multidisciplinar profile that can understand the intricacies of marketing and its technical needs. He created the most influential SEO event in Spain, known as ClinicSEO, that is celebrated monthly and gathers the highest renown professionals in the country.
VP of Growth at Brainly, Speaker – Poland
Murat has led marketing, growth, and analytics at companies such as Brainly, Global Savings Group, and Google. Currently, Murat is the VP of Growth at Brainly, building and scaling a high-performing growth team to acquire users globally. Previously, he was a Director, SEO for GSG, overseeing global organic traffic performance. Prior to that, he led web spam policy enforcement for EMEA markets at Google. Prior to joining Google, he worked as a Research Assistant in the Computer Science Faculty of IUE.
He is an executive advisor of a few startups and investing in early-stage startups. He is a brand ambassador of Oncrawl, an award-winning search marketing intelligence tool. He has been a Head Judge for Global Search and US Search Awards, and a Judge for European, UK, and MENA Search Awards.
SEO Consultant – Technical SEO – Spain
In 2002, after studying IT systems administration at the IES ETI in Tudela (Navarra), he began offering Internet visibility services to companies like Yobordo.
In 2005, he joined the well-known Xeoweb.com forums and began to learn and experiment. In 2007, he participated in the SEO contest organized by Alianzo Networks and ranked second, the following year he participated again and won the contest.
In early 2010, he ceased to be independent and began his professional life at nvivo.es, a startup dedicated to the sale of concert tickets. He was in charge of the search engine ranking strategy for all international versions. He is now SEO Manager for Hello Media Group.
Acquisition and Digital Performance Manager at Reezocar – France
French SEO expert recognized, specialized in analysis and representation of very large volumes of data, Erlé has a Full Stack technical background acquired at the heart of the DevOps Orange Portail team. Known for his skills in SEO Data and his fine knowledge of Google’s algorithms/patents and behaviors, he is now in charge of Acquisition in the startup Reezocar: leader in the sale of new and used cars. A speaker appreciated for his frankness and his organizational and technical point of view, he had the opportunity to support the largest international Oncrawl user accounts in his capacity as Customer success manager #1 Oncrawl.
Independent SEO & Growth consultant, Speaker – SEO and Growth – United States
Eli Schwartz is an SEO expert and consultant with more than a decade of experience driving successful SEO and growth programs for leading B2B and B2C companies. He helps clients like Shutterstock, BlueNile, Quora, and Zendesk build and execute Global SEO strategies that dramatically increase their organic visibility at scale.
In the past, Eli led the SEO team at SurveyMonkey, building organic search from nearly zero to one of the largest growth drivers at the company.
Eli frequently speaks at marketing events across the U.S., Asia, and Europe, and he authors columns published on Search Engine Land, Marketing Land, and Search Engine Journal.
President and Founder of JLH Marketing, Inc.- United States
Jenny Halasz is the President and Founder of JLH Marketing, Inc., a consultancy that specializes in search strategy, with an emphasis on intuitive user experience and successful customer and revenue acquisition. With over a decade of experience in search, Jenny is knowledgeable in all areas of online marketing. She’s worked with dozens of blue chip clients as well as plenty of small enterprises and startups. Jenny is the author and VIP Contributor of the Ask an SEO column at Search Engine Journal, has written a column (All Things SEO) for Search Engine Land, and is a regular contributor throughout the industry on podcasts and hangouts. She has spoken at SMX, Ungagged, SMS Sydney, Pubcon, State of Search, Conversion Conference, Internet Summit, AMA and other national and international conferences.
Founder of Databulle – Technical SEO & Data Science expert – France
Julien started building websites at a young age, before going to college and graduating in Computer Science and Project Management.
He spent several years working for some of the best SEO agencies in France, before creating his own company Databulle in 2017.
Julien specializes in Technical SEO and Data Analysis, and is considered an expert in log analysis, crawl and advanced technical topics. He also shares his few Python skills on several open-source projects.
He was awarded the Young Search Personality Award at SMX Paris in 2018.
He is also a staff member of Web in Reims, an annual webmarketing event in Reims, France.
SEO Consultant at SEO London – United Kingdom
Top 10 UK social media influencer, UK search awards judge and former director of organic performance at ZPG. Previously leading his team he is responsible for the uSwitch.com, Zoopla.co.uk and PrimeLocation organic visibility, conversion rate, traffic and engagement. Lukasz is a hands-on person; he spends lots of his time keeping up to date with the changes in the technology of online marketing. Lukasz started his career in 2005 and has since been responsible for the organic performance of a number of companies including HomeAway, Thomson Reuters, The Digital Property Group and Fleetway Travel.
He is a graduate from the Silesian University of Technology with a BA in Marketing.
He travels up to 75,000 km a year speaking at many SEO and social media conferences including ClickZ Shanghai China, ClickZ Jakarta Indonesia, SiMGA Malta, SES London in the United Kingdom as well as conferences held in Europe; Marketing Festival in Brno, Brighton SEO in Brighton, UnGagged in London. Every year he is actively participating in 10 to 20 events as an SEO/Social Media keynote speaker. Additionally, he organizes workshops and meetups where he is sharing tips around SEO, Social Media and Analytics.
COO at WMR Studio Cappello – Italy
Riccardo was born in 1977 in a little Italian city. His father was an electronic enthusiast and in the early 1980s gave him a Spectrum ZX80. So the story of Merlinox started and the love for the informatic and the programming too.
Riccardo started to work at the end of 1999 after a degree in computer engineering. In these years he learned programming in Coldfusion, JS, PHP, ASP, SQL, CSS, … developing web portals, e-commerce, CMS.
In 2010 he was hired in Studio Cappello as SEO Specialist and today is the Head of SEO and the COO of the agency.
He’s one of the main speechers in the Italian events and usually plays on Twitter with worldwide SEOs
SEO Consultant – Germany
Andor is an international SEO consultant based in Berlin, Germany, and has started his online career back in 2009. Having worked both in-house, as well as on the agency side, he is currently advising online shops, classifiers, marketplaces and other companies regarding technical SEO issues, as well as international organic growth strategies as an independent international SEO consultant. Since 2020, he is a lecturer at the afs Akademie in Germany, which has made it its mission to offer quality education and training in the field of SEO. Since 2021, he is a lecturer at the FH Salzburg and also part of the jury for the CBM awards. He is former Head of SEO at Peak Ace, where he was responsible for SEO consulting both nationally and internationally and managed a +20 people team of SEO consultants and editors. Prior to joining Peak Ace, Andor was In-house SEO for a top-3 comparison portal in highly competitive verticals such as insurance, power and telco. Andor’s core expertise is technical SEO, covering topics such as crawlability, indexing management, migrations and site structure optimization. He is also a top link clean up strategists in Europe, dealing with manual actions and algorithm filters.
International Freelance SEO
Jan-Willem Bobbink got addicted to online marketing in 2004 when he built his first international webshop when he was 16. He is currently working as a Freelance SEO for global clients in various highly competitive niches. He also regularly writes on his blog ‘’.
Over the years he has developed extensive knowledge of performance marketing by building multiple affiliate marketing concepts. In 2011, after several years of working on private projects, he then decided to take his career a step further: utilizing his SEO knowledge for the bigger players in the market.
He has been a speaker at several international events like SMX Munich, Performance Marketing Insights, A4U Expo, iGame Moscow, SEOCampixx, BrightonSEO & Search Marketing Thursday.
Currently, he is responsible for international visibility campaigns for a broad range of clients. He helps them with developing sustainable SEO and link-building strategies, solving algorithmic devaluations, manual penalties, and supporting introduction into foreign markets.
Jan-Willem has technical experience with websites with more than 50 million pages, has optimized domains for Baidu & Yandex, and realized internationalized & scalable link-building campaigns. The projects he’s handled have taken place in all kinds of niches, with a focus on iGaming, E-commerce, travel, and finance markets.