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GTM AI Index
Index › Products › Sender Score · October 2026 Edition
1 category · Named, not ranked

Sender Score

5Judge labels
0First choices
0Negative labels
3 / 14Models named it
1Category
October 2026 Edition. Every number here is derived from the raw labels under vendor table v2026-10-05.2, every buyer segment counted.
Standing
2 labels, too few to rank
A product needs 10 labels in a category before a share or quadrant is stated. Sender Score was named 2 times in Email deliverability, where GlockApps led with 34%. The labels and the evidence are below, counted exactly.
By buyer segmentRead the same way at every buyer size.
Small business49 of 114
0%3 labels
under the label threshold
Mid-market46 of 110
0%2 labels
under the label threshold
Enterprisenot named
0%
No model named it for this buyer.
In email deliverability · each standing computed within its segment · bars are 0 to 100 · the accent bar is the product's own best reading

Standing by category

Every category where a model named Sender Score for a mid-market B2B company. Share is first choices across the direct, paraphrase, budget and scale prompts; rank is within every product named in that category.
CategoryFunctionShareRankNegative rateLabelsQuadrantSince September 2026
Email deliverability and testing toolsMarketing0%46 of 1100%2under 10 labels · led by GlockApps at 34%

Movement

This is the first edition on this tier, so no move can be computed for Sender Score yet. From the next edition this section shows, per buyer segment and per category, whether its share moved by more than the measured noise floor.

By model

How each model treated Sender Score across every prompt where it was named for a mid-market B2B company. Fourteen models, six prompts per category.
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ModelFirst choiceAlternativeMentionNegativeLabels
Claude Haiku 4.500000
GPT-5.4 mini00000
Gemini 3.5 Flash00000
Perplexity Sonar00000
Grok 4.1 Fast01001
Mistral Small00000
DeepSeek V4 Flash00000
Llama 4 Maverick00000
Qwen 3.7 Flash00000
Kimi K200000
GLM 4.7 FlashX00000
MiniMax M2.500000
GPT-6 Luna00000
Muse Glimmer 30B01001

By framing

Which of the six questions produced the naming. By model says how often; this says asked what. The first-choice count on the right carries the marks of the models that produced it.
FramingLabels by classFirst choices
Direct0 labelsNone
Paraphrase0 labelsNone
Comparative1 labelNone
Budget-constrained3 labelsNone
Scale-constrained1 labelNone
Negative0 labelsNone
First choiceAlternativeMentionNegative5 labels in all, every segment counted; 0 of the 0 first choices count toward share, since the comparative and negative framings do not. The bar is one segment per label class, to scale within the framing.

What the models said for it

Verbatim evidence the judge attached to positive labels.

“Free sender reputation score (0-100) based on IP/domain data from multiple ISPs.” Grok 4.1 Fast · Email deliverability · budget prompt · alternative
“Free reputation assessment for IP/domain sender reputation and configuration.” Muse Glimmer 30B · Email deliverability · comparative 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.

No model argued against it.

Named alongside

The products named in the same answers as Sender Score, over the 5 answers that named it. Took the first choice instead counts the answers where the other product was the first choice and Sender Score was named but was not.
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ProductSame answerTook the first choice insteadHead to head
Google Postmaster Tools5 of 52Not among the top eight
GlockApps4 of 51Not among the top eight
MXToolbox4 of 51Not among the top eight
Warmup Inbox3 of 51Not among the top eight
ZeroBounce3 of 51Not among the top eight
Microsoft SNDS3 of 50Not among the top eight
Mail-Tester.com2 of 51Not among the top eight
Mail-Tester2 of 50Not among the top eight
Mailtrap2 of 50Not among the top eight
Unspam.email2 of 50Not among the top eight
A head-to-head page exists where both products are among a category's top eight. The other rows are the same fact without a page behind them, so they link to the product instead.

What carried it into the answer

The sites and pages cited by the answers that named Sender Score. A fact about retrieval, not a lever on the model.

Citations exist only for the models that return a source list, five of the fourteen in this edition, so these counts come from 5 of the 5 answers that named Sender Score and are not a share of its labels.

Domains cited

omnisend.com4
sender.netYour site4
amplemarket.com3
customers.ai3
instantly.ai3
mailflowauthority.com3
mailtrap.io3
myemailverifier.com3
unspam.email3
activecampaign.com2

Twenty-seven of the thirty-one domain citations in answers naming Sender Score came from somebody else's page.

Pages cited

omnisend.com/blog/email-deliverability-tools4
amplemarket.com/blog/best-email-deliverability-tools3
customers.ai/blog/email-deliverability-tools3
instantly.ai/blog/email-deliverability-monitoring-tools3
myemailverifier.com/blog/email-deliverability-tools3
sender.net/blog/cheap-email-marketing3
sender.net/blog/email-deliverability-tools3
unspam.email/articles/email-deliverability-softwares3

Pages are listed as the models cited them.

Search and answers

sender.net is not in Google's top ten for any of the category's searches. In the answers, Sender Score takes 0% of first choices and GlockApps takes 34%.
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In search

Google, US estimates
Position for “email deliverability tool”
–
not in the top ten
Position for “best email deliverability tool”
–
not in the top ten
Organic visits to its site
about 69,078 a month
Searches its site ranks for
13,765 · 304 in the top three
Sites linking to it
10,751
Paid Google search
No ads found in the estimate; that does not mean it runs none
Ads on GoogleDetailLess
32 ads · 21 text, 8 video, 3 image · 13 shown in the last 30 days

First shown March 2023, as UAB Sender.lt, verified. Ads started 2025-10 to 2026-09: 29 in the year, 3 before. 29 more by other advertisers linking to it.

On Google's pages: 1 2 3 4

In answers

This edition
Share of first choices
0%
rank 46 of 110 in email deliverability
Segment leader
34%
GlockApps
First choices
0 across its categories
Named in
5 answers
Its own site cited
in 5 of the answers that named it

Search figures are US estimates from DataForSEO, read September 28, 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
Addresses on sender.net
1,317
subdomains included
Content
428
counted in the table below
Documentation
322
Product · Integration
12 · 2
KindPagesLast 90 days2025-10 to 2026-09LatestCategories named
Blog35212026-08-19Landing pages, Email verification
Comparison5122026-09-10
Glossary or explainer702026-04-20
News or press602025-10-16
Webinar or virtual event502025-10-16
Case study302025-10-16
Conference or event202025-10-16
Report or ebook102025-01-28
Template or tool102026-04-20

Most recent

How it is countedHide how it is counted

Every page sender.net 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 September 29, 2026.

Names read as Sender Score

What the judge wrote, as written, with how often. The vendor table decides that these count as Sender Score; a claim can dispute any of them.
Sender Score (by Validity) 1

Follow Sender Score

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

Sender is the company behind Sender Score.
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On record

Wikidata
Website
sender.net
Headquarters
Vilnius, Lithuania
Founded
2012

Fetched September 14, 2026. These describe the company, not the product's standing, and a claimed page can dispute any of them. · Wikidata

Is this your product?

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 Sender Score'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 Sender Score, 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 Sender Score by email, built from the raw record of the edition. It shows:

  • where Sender Score 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 Sender Score, 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.
The subscriber app

A verification link goes to your work email; an address at sender.net is approved on the spot, any other is reviewed by hand. Your email is never published. Claiming gives no say over labels, shares, verdicts or which quotes appear.