Cyrill Gössi

@cyrillgossi

Est. 2022·English·~0.4 vids/wk

New on TrySpansa

Cyrill Gössi is a Tech and Education YouTube creator with 5.7K subscribers and 137K total views. The channel covers cryptography, network security, tls protocol, x509 pki, encryption techniques. Active for 4 years, the channel publishes about 2 videos per month. Videos average 1.6K views each. The channel's primary language is English. YouTube channels with 1K–10K sub channels typically charge between $50 and $500 per sponsored video. Book a sponsorship directly on TrySpansa.

5,740Subscribers

88Total Videos

137,215Total Views

Source: YouTube Data API

Views / Video284K

Impressions1.2M

Age Demographics

13-17

18-24

35%

25-34

28%

35-44

16%

45-54

55-64

65+

Gender Split

Male 62%Female 36%Other 2%

Core: Male 18-24

Top Countries

🇺🇸United States

28%

🇬🇧United Kingdom

18%

🇧🇷Brazil

12%

🇮🇳India

🇩🇪Germany

Traffic Sources

34%

Suggested

24%

External

14%

Browse

12%

Content Performance

128KAvg Views

4.2%CTR

+1.2KNet Subs

3:42Watch Time

Subscriber Growth

6 mo agoToday

Device Split

Desktop

48%

Mobile

34%

Tablet

11%

Watch Time

8:42Avg Duration

42%Retention

2.1MHours

6.8Views/Visit

Content Type

Long-form

55%

Shorts

28%

Live

12%

Members

Free · 10 seconds · No credit cardSee Cyrill Gössi’s audience data

Niches

TechEducation

About

Cryptography is amazing. Cryptography protects the privacy of people by providing secrecy to personal data, or by providing secrecy to information exchanged between people that have never met before. Cryptography also enables the legal binding of people to data down to the single bit. These are just few examples of amazing feats offered by Cryptography, a subject that at the core ultimately relies on assumptions about the difficulty of fundamental problems in mathematics and computer science. With my courses, I hope to provide an understanding of the workings of fundamental elements of Cryptography and the many applications that can be built with it. Last, but surely not least, I also hope to maybe convey my fascination for the subject to the viewers of my courses. By Cyrill Gössi Computer Scientist | Cybersecurity Expert | University Lecturer

Recent Videos

TLS Essentials 30: Recap and summary

TLS Essentials 29: TLS 1.3 master secret, PSK, encryption keys & HKDF

TLS Essentials 28: TLS 1.2 master secret, PSK, encryption keys & PRF

TLS Essentials 27: Using TLS without X.509 certificates

TLS Essentials 26: Client and server roles and X.509 certificates

TLS Essentials 25: Authenticity or non-repudiation on TLS data?

TLS Essentials 24: Recommendations on TLS cipher suites

TLS Essentials 23: Attacking TLS with Heartbleed

Channel data updated May 2026

youtube.com/@cyrillgossi

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Channel VideosCyrill Gössi

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YouTube Data API: 5,740 subscribers

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Cost per 1,000 Views

Meta Ads (SaaS)$8.75

Mesha 2025

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02Conversion Rate (%)

Using Tech benchmark: 3.6% (Electronics & Appliances) · Skailama 2026

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Using Tech benchmark: 1.6× /year · Beans 2021 freq × Bluecore/MobiLoud RPR

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Methodology & sourcesNot sourced from YouTube

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Topicsclassified by TrySpansa

cryptography network security tls protocol x509 pki encryption techniques cybersecurity education openssl tutorials tls handshake analysis cipher suites cryptographic hash functions digital certificates python cryptography wireshark analysis

Resources

The Brief Isn't Dead. Unstructured Briefs Are. →NY Synthetic Performer Law: AI Clauses Your Deal Needs →Creator Payment Rails 2026: 5 Compared (Plus 1 Imposter) →

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See Cyrill Gössi’s insightsFree · 10 seconds · No credit card

Cyrill Gössi

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