Range requests, done right: resuming a 4 GB download on hotel Wi-Fi
6 min read
Fortified CDN · all systems operational
Send anything to anyone,
keep it forever.
Bastion is the fortified way to move files: upload once, share a link with per-file access rules, and watch every download land in your audit log — delivered from the edge, bit for bit.
New transfer — bastion/dl/u-you/1.4.0/
Search files, people, or paste a link…⌘K
- launch-cut_final_v12.mp42.4 GB · ProRes64%Uploading
- brand-stills-selects.zip812 MB · 214 photosStoredComplete
- firmware-2.8.1.tar.gz146 MB · checksum ✓StoredComplete
Anyone with the linkPassword onExpires in 7 days
No account needed to receive. Checksums verified end to end — the file they get is the file you sent.
A library that remembers every transfer
Nothing disappears into a chat thread again. Every file you have ever sent or received stays searchable — by name, by person, by what's inside it.
“the deck we sent the investors in march”Natural language
- Series-A-deck_v9.pdfSent to Halcyon Capital · Mar 12 · 48 downloads
- product-walkthrough.mp4Received from Mono Studio · Mar 9 · 1.1 GB
- launch-stills-selects.zipSent to Fieldnotes · Mar 3 · checksum ✓
Activity receipt
- maya@halcyon.vcdownloaded2m ago
- link createdexpires in 7d1h ago
- checksumsha-256 verified1h ago
- storagepinned at v9Mar 12
Trusted by teams who ship heavy files
NorthwindHalcyonMono StudioFieldnotesArclineBloom & Co
“We stopped thinking about file transfer entirely. Bastion is where work leaves our hands — and we can prove exactly where it went.”
Built for files other tools refuse
No silent compression, no “file too large”, no expiring into the void.
Every format. Untouched.
Bastion never converts or compresses — the checksum they receive matches the checksum you sent.
MP4
MOV
ProRes
RAW
DNG
PSD
AI
INDD
PDF
ZIP
WAV
MP3
FBX
OBJ
TTF
SVG
PNG
TIFF
KEY
XLSX
JSON
ISO
FCPX
GLB
The Bastion manifesto
Files are how work leaves your hands. A cut, a build, a contract, a life's research — they deserve better than an expiring link and a shrug. Bastion keeps every byte intact, every access accounted for, and every version exactly where you left it. Forever is a feature. We built it.
Private by architecture, not by promise
Security you can point at, audit, and revoke — per file.
SOC 2 Type IIGDPR readyISO 27001HIPAA aligned3-tier admin rolesScoped API tokens
The fastest way from your disk to theirs
Range streaming, pinned versions and edge caching — pick a metric and watch the gap.
Bastion
38 s
Legacy FTP
4 m 06 s
Email attachmentRejected — too large
✕ blocked
Generic cloud drive
2 m 12 s
Illustrative benchmark topology: 4 GB ProRes file, 1 Gbps access link, median of 30 runs. Your mileage — and your checksums — may vary.
Made for the whole team
Shared workspaces
Invite the whole production team into one library. Guests get upload-only links; members get the full archive.
- Unlimited guest upload links
- Folder-level permissions
- One search across every transfer
Customer stories
“Final cuts used to ride hard drives across the city. Now the link is in the client's inbox before the render farm has cooled down — and we can see the second they watch it.”
Use ← → keys to browse
How Bastion works
01
Drop it in
Drag anything into Bastion — or let guests upload through your link. Files land in your CDN namespace with a SHA-256 fingerprint.
Plays well with your stack
A token-protected upload API, stable registry URLs and plain HTTP semantics. If it can make a request, it can publish to Bastion.
Get an API tokenREST API
Scoped tokens
Custom domain
Version pinning
Range streaming
Media delivery
Audio CDN
Video CDN
Web fonts
CSV / data
Binaries
Self-hosted
Notes from the fortress
Field notes on moving big files safely.Why we hash tokens, pin versions, and log absolutely everything
8 min read
Forever storage is a feature: the case against expiring links
4 min read
Pricing that scales with your files
Start free. Upgrade when the archive gets serious.
Starter
For sending your first heavy files.
$0/ mo
- 500 MB storage
- 10,000 requests / day
- 500 MB max file size
- Per-file access rules
- Full audit log
Most popular
Studio
For teams shipping work every day.
$19/ mo
- 200 GB storage
- Unlimited guest uploads
- Custom domain & branding
- Team workspaces & roles
- Benchmarks & analytics
- Priority support
Fortress
Self-hosted control, enterprise guardrails.
$79/ mo
- Unlimited storage (your infra)
- 3-tier admin hierarchy
- Scoped service tokens
- Data residency controls
- SSO & advanced audit exports
Questions, answered
Something heavier on your mind? Talk to a human.
Forever, until you delete them. Links don't rot after 7 days unless you set an expiry yourself — pinning a version keeps that exact file at that exact URL indefinitely.
Send it once. Keep it forever.
Your first 500 MB is free, the link never rots, and every download is on the record.