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CompTIA Security+ (Exam SYO-501)
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Basics of Network Security Analysis
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Penetration Testing Engineer
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CompTIA Security Plus (SY0-701) Certification Prep Course
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Vulnerability Assessment and Penetration Testing (VAPT)
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API Pentesting for CEH
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CompTIA Security+ (Exam SYO-501)
IT
FREE
Start learning
Basics of Network Security Analysis
IT
FREE
Start learning
Penetration Testing Engineer
IT
FREE
Start learning
CompTIA Security Plus (SY0-701) Certification Prep Course
IT
FREE
Start learning
Vulnerability Assessment and Penetration Testing (VAPT)
IT
FREE
Start learning
API Pentesting for CEH
IT
FREE
Start learning
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Latest Posts
6 Best Penetration Testing Courses in 2025
Learn ethical hacking, vulnerability assessment, and pen testing with Nmap, Nessus, and OpenVAS. Plus, master pentest reports and security audits with top courses.
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200+ Cursos Online da FGV com Certificado Gratuito
A Fundação Getulio Vargas oferece mais de 200 cursos online com certificado de participação gratuito.
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Learn English as a Second Language (ESL) with Hundreds of Courses & Sites
Although Class Central lists online courses in 87 languages, courses made in English outnumber all of the others by more than six to one. English is therefore a useful language to know, even though some courses have subtitles in a range of languages.
Earlier this year, we updated our list of courses to help improve your writing skills. These courses all assume some fluency in the language.
But what if you do not know any English, or your English is very poor?
If you do not have convenient acce
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Coursera Q4 2025: 197M Learners, ~$197M Revenue, ~$27M in Losses
On Feb 5, 2026, Coursera released its Q4 2025 results. It was the first report since announcing the Udemy merger, which Dhawal Shah, Class Central founder, recently analyzed (in 5000+ words!).
Coursera’s stock barely moved after the announcement and is currently at ~$6, down 87% from its opening day price in 2021. Here’s a quick review of its last 2025 quarter.
More Users, Struggling Segments
Coursera’s Q4 revenue was ~$197M, up 10% YoY, but growth has been flat since Q2.
Consumer revenue saw
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