Directory · ML platforms and experiment tracking
MosaicML — what a crawler receives from mosaicml.com
Website measurement, not a product review. This page records what machine clients received from mosaicml.com. It does not evaluate MosaicML software, features, pricing or support.
Answer engines can technically reach this site, but get little they can use.
AI visibility 73/100, measured 2026-10-04 05:18 UTC from outside its network, as each named AI and search crawler and as a browser. An engine can technically reach this site and would struggle to get anything quotable out of it.
Held at C A medium-severity finding sets the letter.
5
findings
✗
llms.txt on its host
✗
entity map on its host
4
scans on record since 2026-09-18
The three stages, in the order an engine hits a site
Each stage gates the next. An engine that cannot reach a page never reads it; one that cannot read it never quotes it. That is why reach is a ceiling and not just a weight.
Stage 1 · 40% of the score
Reach
Can a named answer-engine crawler get your pages at all?
At least one answer engine was refused, challenged or served less than a browser.
Stage 2 · 30% of the score
Read
Once it has the bytes, can it find the words?
The content is buried in markup, or the files that guide a crawler are missing.
Stage 3 · 30% of the score
Quote
Is there a specific fact it can state and attribute?
An assistant would have to paraphrase your page instead of quoting a fact.
- Structured data57
- Local presence & NAPn/a
- Claim consistencyn/a
- Authors & trust signals50
- Linked datan/a
- Quotable content75
- Entity corroborationn/a
- Page subjectn/a
The stage to fix first is quote, because the three run in order.
What to fix
5 findings on this site, 2 of them scored serious. Every one is named below; the top one is shown in full, free. What we saw, why each matters, how to fix it and the bytes behind it are what a licence buys — or we implement the whole list for you.
2 Medium 1 Low 2 Note
1robots.txt does not return 200HTTP 404.MediumSetting
What we saw
HTTP 404. /robots.txt
Why it matters
The response code on robots.txt determines how crawlers treat the whole site. Anything other than 200 or a clean 404 is risky.
How to fix it
Serve robots.txt with status 200 as text/plain. A 404 or 410 means no file: under RFC 9309 a crawler may then fetch everything, so any rule you meant to publish is not in force. A 429 is read by Google as a server error, which pauses crawling: exempt robots.txt from rate limits.
Setting: a setting on the server, CDN, DNS or a plugin — no code and no writing
Why this was decided
| Rule | ROBOTS_NOT_200 · rule pack sv27 · scope core |
|---|---|
| Evaluated | 2026-10-04 05:18:47 UTC |
| Decision | d1:a822e42f7ade283f1467 · finding f1:93457fe80937294d9bd2 resolve either at /api/graph/<id> with a key |
| Observer | crawlcheck-worker build a7b70d8a · audit v4 |
What it rests on
| Identity | Status | Bytes | sha256 | Kept |
|---|---|---|---|---|
| read: /robots.txt | 404 | 906 | 90c032f35272 | already_held |
23 more in the manifest.
Artifacts: manifest:1b346d2db9e022d8efc93949d2762a747dbf6f049d01fecd2f8159718dcb9a0e
Grade effect Caps the letter at C together with 1 other medium-severity finding; the letter rises only when all of them are gone. Moves no points.
Rule ROBOTS_NOT_200 under scoring rules v31 · fingerprint ROBOTS_NOT_200|/robots.txt · persisting (4 scans)
Verify the fix Re-scan after the change. This finding is cleared when ROBOTS_NOT_200 is no longer reported at /robots.txt; if it comes back after clearing, it is marked a regression, not a new finding.
ROBOTS_NOT_200 · full transcript
Open the other 4
What we saw, why it matters, how to fix it, and the evidence bytes for every finding — on this report and every re-scan. From $29 a month.
Unlock the findingsOr have them fixed
We implement the list on your site and re-measure, with a sealed before and after. One site, $749 once.
Get this fixed — $749The main product
We fix the 5 findings on mosaicml.com. $749, once.
2 of them are scored serious. One site. You keep the grade for free — this is the part where the list stops being a list.
- Every finding implemented on the site itself: machine files, schema, NAP, the lot
- An entity map authored for your business, not a template with the name swapped
- Measured again afterwards — the before and the after, sealed, so it is evidenced rather than claimed
- Thirty days of monitoring included
- Work starts within two business days
What it covers · one payment, nothing recurring
The chain a crawler follows
The chain breaks at robots.txt. Everything after that point is only reachable by a crawler guessing the conventional path.
A machine file that does not parse is worth less than one that is absent, because it looks present. Rows behind this.
Where the bytes go
Of the 732,563 decompressed bytes the homepage delivers, 1.1% is text a reader or a model can actually use. Most of what a crawler downloads here is not words.
- Readable text 1.1% · 8,019 B
- Markup & attributes 20.8% · 152,634 B
- Inline CSS 65.2% · 477,568 B
- Inline JavaScript 12.2% · 89,155 B
- Inline SVG 0.7% · 5,006 B
- HTML comments 0% · 181 B
The individual blocks that weigh the most, so the fix is a search rather than a hunt:
- Inline CSS · 327,921 B (44.8%) — unnamedopens
*,:after,:before{--tw-border-spacing-x:0;--tw-border-spacing-y:0;--tw- - Inline CSS · 124,913 B (17.1%) — unnamedopens
*,:after,:before{--tw-translate-x:0;--tw-translate-y:0;--tw-rotate:0;- - Inline JavaScript · 61,341 B (8.4%) — unnamedopens
undefined ;/*! For license information please see nr-loader-spa-1.290. - Inline CSS · 24,089 B (3.3%) — unnamedopens
.mktoPrimary.mktoForm input[type=date],.mktoPrimary.mktoForm input[typ - Inline JavaScript · 12,306 B (1.7%) — unnamedopens
function OptanonWrapper() { db_debug("OptanonWrapper():DB:v1.3") let o
What changed
- 2026-10-04resolved: a named crawler was sent somewhere the ordinary client was notresolved
- 2026-10-04no answer engine was refusedresolved
4 scans on record, first 2026-09-18. Score movements are shown only between readings taken under the same score version; finding codes are comparable across all of them.
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