Exam authorities say their website is coping with students checking their results, although some students are reporting problems.
Otahuhu College student Shaneel Lal said he had to check the college website to find out that he gained Level 2 of the National Certificate of Educational Achievement (NCEA) with excellence.
Results for all 168,000 NCEA students were posted on the NZ Qualifications Authority website just after 7am today.
"I logged in with my national student number and I had a new password, which I reset today, but I got logged out," Shaneel said.
"The school website has all the results. I got excellence endorsements in maths, physics, biology and chemistry and a merit endorsement for English.
"I didn't really expect the merit endorsement for English because I'm not so good at English."
However an NZQA spokeswoman said Shaneel's problems accessing the site appeared to be isolated.
"It's all going very well," she said.
"Some students were locked out after they entered an incorrect password.
"Any student having difficulty logging in, for whatever reason, should call us on 0800 697 296. Our staff can reset passwords if required and stay on the line until the student has successfully logged in."
NZQA deputy chief executive Kristine Kilkelly said more than 60,000 students had logged in to check their results by 11.30am today, including almost 28,000 in the first hour between 7am and 8am.
"As we expected, many students used mobile devices to log in and check their results, with around 55 per cent of students logging in through a mobile device so far," she said.
The opening hours of NZQA's call centre have been extended until 8pm, and extra staff are on hand to answer specific queries students and their families may have about NCEA results.
The NZQA call centre can be contacted on 0800 697 296 or by email to firstname.lastname@example.org.
The authority had earlier refused to say exactly when the results would go live to avoid tens of thousands of students logging in at the same time and crashing the website.
Last year, students logging in overloaded the website, frustrating many who couldn't access their results.
The qualifications authority said the students would receive their marked examination papers late this month.
Those who sat digital examinations as part of the Digital Trials and Pilots Programme would have to wait until January 23 to view their marked papers online.
After receiving their marked NCEA papers, students had until February 16 to apply for a review or reconsideration of their examination papers.
NZQA has extended its call-centre operations until 8pm today and extra staff are on to answer queries students might have about their results.
But not everyone who sat exams would find out their results today.
Students who sat New Zealand Scholarship examinations would not be able to view their results until February 13.
Although the much-awaited examination results ritual has finally arrived it may look completely different by the end of next year.
A review this year may completely transform the education system, tackling problems identified in the terms of reference such as "the impact of over-assessment on student well-being and teacher workload" and "assessment-driven teaching and learning".