2 categories · RankedMXToolbox
Standing by category
| Category | Function | Share | Rank | Negative rate | Labels | Quadrant | Since September 2026 |
|---|---|---|---|---|---|---|---|
| Email deliverability and testing tools | Marketing | 5% | 4 of 110 | 10% | 31 | accepted challenger | |
| Email verification | GTM data and infrastructure | 0% | 30 of 65 | 0% | 1 | under 10 labels · led by ZeroBounce at 42% | newNew since September 2026: not ranked then, 0% now. |
Movement
By model
How each model treated MXToolbox across every prompt where it was named for a mid-market B2B company. Fourteen models, six prompts per category.ShowHide
By model
| Model | First choice | Alternative | Mention | Negative | Labels |
|---|---|---|---|---|---|
| Claude Haiku 4.5 | 0 | 1 | 1 | 1 | 3 |
| GPT-5.4 mini | 0 | 0 | 0 | 0 | 0 |
| Gemini 3.5 Flash | 0 | 2 | 0 | 0 | 2 |
| Perplexity Sonar | 1 | 0 | 1 | 0 | 2 |
| Grok 4.1 Fast | 0 | 2 | 1 | 1 | 4 |
| Mistral Small | 0 | 2 | 1 | 0 | 3 |
| DeepSeek V4 Flash | 0 | 3 | 0 | 0 | 3 |
| Llama 4 Maverick | 0 | 0 | 1 | 0 | 1 |
| Qwen 3.7 Flash | 0 | 3 | 1 | 0 | 4 |
| Kimi K2 | 1 | 1 | 0 | 0 | 2 |
| GLM 4.7 FlashX | 1 | 0 | 1 | 0 | 2 |
| MiniMax M2.5 | 0 | 3 | 0 | 0 | 3 |
| GPT-6 Luna | 0 | 0 | 0 | 0 | 0 |
| Muse Glimmer 30B | 0 | 2 | 0 | 1 | 3 |
By framing
What the models said for it
Verbatim evidence the judge attached to positive labels.
“Best free option: Stack Google Postmaster Tools, Microsoft SNDS, Yahoo Sender Hub, MXToolbox, Mail Tester, AboutMyEmail, and Sender Hub.” GLM 4.7 FlashX · Email deliverability · budget prompt · first choice
“free monitoring stack with Google Postmaster Tools, Microsoft SNDS, MXToolbox, and Yahoo Sender Hub” Perplexity Sonar · Email deliverability · budget prompt · first choice
“Start with free tools → Google Postmaster Tools + MXToolbox + Mail-Tester free tier” Kimi K2 · Email deliverability · budget prompt · first choice
“cross-reference results with free, reputable diagnostic tools like MXToolbox (for SPF, DKIM, DMARC, blacklist checks)” Mistral Small · Email deliverability · negative prompt · alternative
And against it
Verbatim evidence attached to negative labels. A warning on a product with few labels is a warning; on a product with many, it is one voice among them.
“MxToolbox is an infrastructure diagnostic tool, not a campaign email testing tool... best used only for specific DNS and infrastructure checks, not comprehensive campaign testing.” Claude Haiku 4.5 · Email deliverability · negative prompt · hard negative
“Free tools like Mail Tester and MxToolbox handle basic checks but lack the depth for production workflows.” Muse Glimmer 30B · Email deliverability · negative prompt · soft negative
“lack depth for production-scale testing, inbox placement simulation, or ongoing monitoring” Grok 4.1 Fast · Email deliverability · negative prompt · soft negative
Named alongside
The products named in the same answers as MXToolbox, over the 72 answers that named it. Took the first choice instead counts the answers where the other product was the first choice and MXToolbox was named but was not.ShowHide
Named alongside
What carried it into the answer
Citations exist only for the models that return a source list, five of the fourteen in this edition, so these counts come from 71 of the 72 answers that named MXToolbox and are not a share of its labels.
Domains cited
294 of the 294 domain citations in answers naming MXToolbox came from somebody else's page.
Pages cited
Pages are listed as the models cited them.
Search and answers
mxtoolbox.com is not in Google's top ten for any of the category's searches. In the answers, MXToolbox takes 5% of first choices and GlockApps takes 34%.ShowHide
Search and answers
In search
Google, US estimates- Searches for its name, Google
- 60,500 a month (“mxtoolbox”)
- AI search demand for its name, est.
- 126 a month
- Organic visits to its site
- about 453,570 a month
- Searches its site ranks for
- 11,459 · 2,918 in the top three
- Sites linking to it
- 19,462
- Paid Google search
- No ads found in the estimate; that does not mean it runs none
In answers
This edition- First choices
- 7 across its categories
- Named in
- 72 answers
- Its own site cited
- in 71 of the answers that named it
Search figures are US estimates from DataForSEO, read October 5, 2026; AI search demand is its modeled, directional estimate, not a count of queries to any assistant. The answers are this edition's. Two measurements side by side: neither is read as the cause of the other.
What it publishes
ShowHide
What it publishes
ShowHide| Kind | Pages | Last 90 days | 2025-11 to 2026-10 | Latest | Categories named |
|---|---|---|---|---|---|
| Blog | 834 | 47 | 2026-10-02 | Direct mail | |
| Glossary or explainer | 19 | 0 | 2019-08-01 | ||
| Comparison | 3 | 0 | 2024-04-01 | ||
| Template or tool | 3 | 0 | 2018-12-01 | ||
| Report or ebook | 2 | undated | |||
| Case study | 1 | 0 | 2020-04-01 | ||
| Conference or event | 1 | 0 | 2016-10-01 |
Most recent
How it is countedHide how it is counted
Every page mxtoolbox.com exposes, subdomains included. Kind is read from the address and title. The last 90 days, the latest date and the twelve months count pages by when they were published, from the site's feeds, a date in the address, or the page's own publication date, read from up to a hundred of its most recently changed pages; a page that says only when it last changed is counted in its kind but not in when, so the recent counts are a floor, and a kind none of whose pages gives a publication date reads undated. An event counts as online when its address or title says so (webinar, on demand, virtual or online summit); a conference, summit, trade show, expo or roadshow that does not say so is counted as a conference or event, which on a vendor's site is mostly in person. Read October 5, 2026.
Names read as MXToolbox
Follow MXToolbox
An email the morning each edition publishes: where this product moved, where it held, and by how much against the noise floor. One address, confirmed by a click; a stop link in every email.
Already following? Everything you follow, with a stop for each.
The company
MXToolbox is its own company.ShowHide
The company
In its own words
Stated by the vendor, not checked- Positioning
- Check your DNS MX Records online
- For
- email novice, professional, marketer or technician
- Price stated
- Free $0/month; Delivery Center $129/month; Delivery Center Plus $399/month mxtoolbox.com/c/products/msp
- Starting price
- 0/month mxtoolbox.com/c/products/msp
- Free plan or trial
- Free MxToolBox Account — Get one (1) Free Monitor to alert you to Email Delivery Issues mxtoolbox.com/c/products/msp
- Integrations claimed
- 6 mxtoolbox.com/c/products/msp
- Not stated on the pages read
- Certifications, hosting, customers
What MXToolbox's own pages state, read October 5, 2026: mxtoolbox.com, mxtoolbox.com/c/products/msp. A claimed page can correct any of them.
Claim this page
Claiming is free and changes nothing in the data. A claimed page shows a verified contact who is told when each edition publishes and when MXToolbox's standing changes by more than the noise floor; the right to propose corrections to the vendor table, meaning names the judge wrote that should or should not read as MXToolbox, applied by version and listed in the change log; and a one-line description supplied by the vendor and marked as such.
What a new claim receivesHide what a new claim receives
A new claim receives the current edition's vendor brief for MXToolbox by email, built from the raw record of the edition. It shows:
- where MXToolbox is named, by buyer and by framing, and which cells hold its first choices;
- the claims the models make when they name it, ranked, with the strongest and the weakest quoted;
- its vocabulary against the segment leader's, and the pages the models cited;
- who was chosen in the answers that did not name MXToolbox, and every reason the record gives;
- a battlecard for each top rival: the head-to-head split, why they win, and the reservation quoted against them;
- one page of published figures cleared to show a buyer.