Internet that moves at the speed of light, not just in the ads.
Serat runs fiber-optic lines directly to your home or office — not shared copper cable. Symmetric speeds, low latency, no hidden caps.
Built from glass, not promises.
Light travels far more reliably than electricity through copper. That's why every line at Serat, from the data center to the jack on your wall, is pure fiber optic.
Fiber all the way home
Not fiber-to-the-pole then copper to your door. Glass runs unbroken all the way to your router.
Uploads as fast as downloads
Video calls, cloud backups, and live streaming run smoothly in both directions, not just one.
Your speed never quietly drops
No fair-usage cap that throttles you after heavy use. What you pay for is what you keep getting.
A technician shows up, not just a chatbot
Field issues are handled by an on-site technician, averaging 4 hours within our coverage area.
One fiber line, four speeds.
Prices include tax and the ONT modem. No installation fee on a 12-month contract.
Home
30 Mbps · symmetric- 1 router included
- Good for 2–3 users
- Smooth HD streaming
- 24/7 chat support
Family
75 Mbps · symmetric- 1 free mesh Wi-Fi point
- Good for 4–6 users
- 4K streaming + online gaming
- Priority 24/7 support
Pro
150 Mbps · symmetric- Optional static IP
- Built for heavy remote work
- Multi-camera live streaming
- Priority technician < 4 hrs
Business
300 Mbps · dedicated- Dedicated line, never shared
- 99.9% uptime SLA
- Static IP included
- Dedicated account manager
Already live in 8 cities.
- Jakarta Live
- Bandung Live
- Surabaya Live
- Denpasar Live
- Medan Live
- Makassar Live
- Semarang Coming soon
- Yogyakarta Coming soon
Trusted by teams who can't tolerate lag.
"Switching from old cable to Serat, a 20GB video editing upload that used to take all night now takes 40 minutes."
"Video calls with overseas clients finally stopped dropping once we moved to the Pro plan."
"Our online store runs 24/7, and the Business line SLA lets us actually sleep at night."
Before you ask us directly.
Usually 2–5 business days after your address is confirmed within our coverage. A technician will contact you to schedule a visit.
Free with a 12-month contract. For month-to-month plans without a contract, a one-time installation fee applies.
Report it through 24/7 chat. For physical issues within our coverage area, a technician typically arrives within 4 hours.
Yes. Upgrades take effect within 24 hours with no need to reinstall any equipment.
Use the availability checker at the top of the page. We expand to new cities based on how much interest we see registered in an area.
Check your address, get live in days.
Our team confirms network coverage and schedules installation — no need to wait on hold.