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Fast.com VS CodeRifts

Compare Fast.com VS CodeRifts and see what are their differences

Fast.com

Quickly test your internet speed with this fast-loading speed test powered by Netflix.

Rating
0 reviews
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Alternatives Is it good?
CodeRifts

Contract-change decisions with signed, offline-verifiable receipts: a change to an API or MCP contract merges only with a grant bound to that exact change.

Rating
0 reviews
Pricing
Freemium $149 / Monthly (Team, after the public beta)
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Alternatives Is it good?
ASocks
Clear, Fast & Unlimited. Residential & Mobile Proxies For Best Price. sponsored

Which is more popular?

Based on our record, Fast.com seems to be more popular. It has been mentioned 1688 times since March 2021.

social mentions
1,688 vs 0
Speed Test popularity
100% vs 0%
alternatives listed
139 vs 3

Base details

Website, pricing, platforms and company facts side by side.

Fast.com
CodeRifts
Website fast.com coderifts.com
Pricing —
Freemium $149 / Monthly (Team, after the public beta) Official pricing
Platforms —
Web CLI REST API MCP +1
Company Startup from the United States 2026
Listed in
Speed Test Internet Developer Tools Networking +1
Developer Tools DevOps Tools API Tools Git Tools AI Developer Tools +2

About Fast.com and CodeRifts

In their own words, as submitted to SaaSHub.

Fast.com
CodeRifts

No description of Fast.com yet.

CodeRifts decides whether a change to an API or MCP contract may merge, and signs the decision. A GitHub App and a GitHub Action post two checks on every pull request that touches a contract file: CodeRifts / issuer and CodeRifts / contract-gate. Require both in branch protection, and a breaking...

Read more about CodeRifts

Features and specs

What each product offers, as listed by its team.

Fast.com 5 features
CodeRifts 11 features
  • Simplicity
    Fast.com has a clean and straightforward interface, making it very easy for users to test their internet speed without any distractions or complications.
  • Ad-Free
    The website does not contain any advertisements, providing a seamless and uninterrupted user experience.
  • Integration with Netflix
    Fast.com is created by Netflix, which ensures that the speed test results are optimized for streaming services, giving users a reliable indicator of how well they can stream content on the platform.
  • Quick Results
    The speed test begins automatically as soon as the website loads, providing users with rapid results without the need for additional clicks or inputs.
  • Mobile-Friendly
    Fast.com is optimized for mobile devices, making it easy for users to test their internet speed on smartphones and tablets.

Possible disadvantages

  • Limited Metrics
    Fast.com primarily focuses on download speed and does not provide as comprehensive a range of metrics as some other speed test websites, such as upload speed, latency, and jitter.
  • No Server Selection
    Users cannot choose which server to run the speed test against, which can sometimes result in less accurate measurements for specific network conditions.
  • No Historical Data
    Fast.com does not offer features to save or track historical speed test results, limiting users' ability to monitor their internet performance over time.
  • Lack of Customization
    There are no options to customize the test parameters, such as test duration or concurrency levels, which might be relevant for more advanced users.
  • Geared for Streaming
    Since Fast.com is tailored for Netflix streaming, it may not fully represent other usage scenarios, such as gaming or file downloads, which require different network performances.
  • Signed decision receipts
    Every decision comes with a signed receipt you can verify offline, without asking CodeRifts.
  • Policy Engine
    Breaking budgets, freeze windows, approval matrix
  • Breaking Change Detection
    10+ change types, OpenAPI schemas
  • Offline Verification (OVSE)
    A public, MIT-licensed verifier checks any receipt with no API key, no account and no CodeRifts server in the loop.
  • MCP server with three tools
    preflight_change_set, verify_receipt and get_decision_details, listed in the official MCP Registry; works with Claude Code, Cursor and custom hosts.
  • Merge enforcement on GitHub
    A required, app-bound status check stays red until a grant exists; enforce_admins on, workflow pinned by SHA.
  • Published proof boundaries
    The 'does not prove' limits are served live at /.well-known/coderifts.json — what a decision does not establish is a field in the output, not a footnote.
  • Named-state verdicts
    CONTINUE, CONTINUE_WITH_MONITORING, REQUEST_APPROVAL or STOP — a state you can branch on, never a score or a boolean.
  • Single-use grants
    One grant, one execution; an adapter that cannot prove atomic consumption cannot report the atomic success state.
  • Guarded tool table for AI agents
    In the tool table handed to the agent, an ungranted mutation does not exist — nothing to call, not an error.
  • Multi-protocol contract diff
    Breaking-change detection for OpenAPI, GraphQL, gRPC, AsyncAPI and MCP tool schemas, with the same signed verdict on every path.

Analysis

An editorial look at what each product does well and who it suits.

Fast.com
CodeRifts

Overall verdict

  • Yes, Fast.com is good for quickly assessing your internet download speed, particularly if you're interested in streaming quality on Netflix.

Why this product is good

  • Fast.com is a speed test tool developed by Netflix to help users evaluate their internet connection, particularly for streaming services. It is known for its simplicity, ease of use, and lack of ads, providing a quick way to measure download speeds using Netflix's servers.

Recommended for

  • Users who want a simple and ad-free internet speed test.
  • Anyone looking to check streaming speeds for Netflix.
  • People interested in basic information about their download speeds without detailed additional metrics.

Overall verdict

  • I don't have verified, up-to-date information about CodeRifts (coderifts.com) to make a confident assessment of its quality, legitimacy, or value. I'd recommend researching independently before making any decisions about this service.

Why this product is good

  • Insufficient reliable data available to confirm the platform's features, pricing, or track record
  • No verified user reviews or reputation signals could be assessed to gauge customer satisfaction
  • Unable to confirm the legitimacy, security practices, or business longevity of this specific service

Recommended for

  • Individuals willing to conduct their own due diligence, including checking domain age, reviews on independent platforms, and any regulatory or security red flags
  • Users who can verify the service directly through trusted sources like the Better Business Bureau, Trustpilot, or relevant industry forums before committing

Videos

Walkthroughs and reviews on video.

Fast.com 3 videos + Add
CodeRifts 0 videos + Add

Speedtest.net vs Fast.com | why different results ?

More videos

  • - Measure your Internet speed with Fast.com
  • - Fast.com: Better than speedtest.net?

No CodeRifts videos yet. You could help us improve this page by suggesting one.

Category popularity

How often each product is chosen within a category, 0–100% relative to the other.

Score bands 0–20 21–40 41–50 51–60 61–100
Fast.com
CodeRifts
100% 100%
Speed Test
0% 0%
0% 0%
AI Developer Tools
100% 100%
100% 100%
Developer Tools
0% 0%
0% 0%
DevOps Tools
100% 100%

Questions & Answers

As answered by people managing Fast.com and CodeRifts.

What's the story behind your product?

CodeRifts's answer:

A field rename broke a POS system across 19 restaurants for a week. The PR passed review, tests were green, nobody checked the contract. CodeRifts started as the check that catches this before merge. Then the author of the change stopped being a person: AI agents now propose and execute contract changes, and the question became not just "is this safe" but "was this authorized, and can you prove it later" — which is what the signed, offline-verifiable gate answers.

Which are the primary technologies used for building your product?

CodeRifts's answer:

Node.js and Express; Ed25519 signatures with a pinned public keyring; PostgreSQL on Railway; an MCP server with three tools listed in the official MCP Registry; the GitHub Apps and Checks API for merge enforcement; a JavaScript and Python receipt verifier (MIT); Cloudflare Pages for the site. Verified live with npx @coderifts/conformance.

What makes your product unique?

CodeRifts's answer:

Every decision CodeRifts makes is an Ed25519-signed receipt that anyone can verify offline — no API key, no account, no CodeRifts server in the loop. The verdict is a named state (CONTINUE, CONTINUE_WITH_MONITORING, REQUEST_APPROVAL, STOP), not a score, and it ships with its own published limits: the "does not prove" statements served live at /.well-known/coderifts.json. Where authorization cannot be established, the answer is never an assumed yes.

Why should a person choose your product over its competitors?

CodeRifts's answer:

Diff tools tell you what changed in a contract. CodeRifts decides whether an AI agent may proceed with that change, spends a single-use grant on execution, and keeps the GitHub required check red until the grant exists — and the evidence survives us: the receipt verifies against a pinned key snapshot with a public MIT verifier. If your question is "who allowed that, and can I prove it without trusting the vendor's database", that is the difference.

How would you describe the primary audience of your product?

CodeRifts's answer:

Three people. The one who runs AI agents in production and needs "who allowed that change" to be more than a log line they also control. The one adding a gate to an agent runtime who needs a state to branch on, not a score. And the one an auditor will ask, who needs evidence that survives the vendor. If none of these is you yet, you probably do not need this today.

Who are some of the biggest customers of your product?

CodeRifts's answer:

  • No paying customers yet. CodeRifts is in beta; the first external organization onboarding is the milestone we publish next — not before.

User comments

Share your experience with using Fast.com and CodeRifts. For example, how are they different and which one is better?

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Social recommendations and mentions

Recommendations tracked on public social media and blogs since March 2021.

Fast.com 1688 mentions
CodeRifts 0 mentions
  • I Built a Fast.com for LLMs: Introducing iamspeed.dev
    That is exactly how fast.com works for internet speed tests. You open it, it runs, you see a number. Done. - Source: dev.to / 5 months ago
  • Streaming the 2026 Winter Olympics: A Developer's Guide to Live Sports IPTV
    Pro tip: Run a speed test immediately before the event. Don't trust your "up to 100 Mbps" ISP claim. Use fast.com or speedtest.net to get real numbers. - Source: dev.to / 9 months ago
  • Downdetector, Speedtest sold to IT service provider Accenture in $1.2B deal
    Speedtest has always seemed incredibly sketchy to me, I don’t know if others share this sentiment. https://fast.com completed the test faster than speedtest loads the site. - Source: Hacker News / 9 months ago

View more

Tracking CodeRifts since Mar 2026.

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