Email signature software: AI search visibility ranking (2026)
How AI search engines rank email signature software by visibility and citations. 20 brands measured monthly across Google AI Mode: which brands the AI names in answers, which domains it cites as sources, and how the leaders compare. Email signature software used to centrally manage branding, legal disclaimers, banners, analytics, and employee signatures across mail platforms. Composite score: 70% visibility (% of AI answers naming the brand) + 30% citation rate (% citing the brand's domain). Full methodology →
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When buyers inquire about Email signature software, AI engines most frequently identify CodeTwo as the leader, with a notable visibility rate of 50.0 percent among responses. Other brands like Exclaimer and WiseStamp are also frequently mentioned. CodeTwo's prominence is further emphasized by an impressive 87.5 percent citation rate across AI-generated answers.
The rankings largely stem from the domains AI engines reference most often, including CodeTwo's own site (codetwo.com) and syncsignature.com, an aggregator of Email signature solutions. Sites like g2.com further influence these rankings by consolidating user reviews and expert insights, offering credibility and comprehensive evaluations of different brands.
Buyers should consider how strongly AI engines favor recently reviewed brands and those validated by third-party sites when choosing from this list. Attention to topical authority in the Email signature subcategory, demonstrated through frequent mentioning, can help ensure that the selected software meets specific needs and preferences effectively.
At a glance
What we observed in this category
CodeTwo leads the email signature software category with a composite score of 61.2, pulling clear of Exclaimer and WiseStamp, both sitting at exactly 50.0. The gap matters because CodeTwo's citation rate of 87.5% is nearly double that of its nearest rivals, meaning Google AI Mode not only mentions it but actively references it as a source. With the category average visibility at just 8.8%, the top three brands are effectively operating in a different tier from the remaining 17.
Mail-Signatures presents the clearest divergence between visibility and citation in this dataset. It holds 0% visibility, meaning AI Mode does not surface it in direct responses, yet its citation rate reaches 62.5%, ranking it fourth among all brands on that metric. Opensense shows the inverse pattern, appearing in 12.5% of responses but earning 0% citations. These gaps suggest that being named in an AI answer and being trusted as a source reference are distinct outcomes in this category.
Google AI Mode is the dominant engine across all 10 ranked brands, with no other engine registering as a top performer for any brand. The cited source list anchors heavily on brand-owned domains, with codetwo.com listed first, followed by exclaimer.com and wisestamp.com. Third-party platforms g2.com and reddit.com also appear, alongside youtube.com, indicating that AI is drawing on review aggregators and community discussion in addition to vendor content when constructing answers about this category.
Movers & shakers since last refresh
Biggest visibility risers
-
WiseStamp 25% → 50% · rank #3 → #3+25pp
-
CodeTwo 38% → 50% · rank #2 → #1+12pp
-
Opensense 0% → 12% · rank #12 → #6+12pp
Biggest visibility fallers
-
Newoldstamp 25% → 0% · rank #4 → #8-25pp
The ranking
| # | Brand | Visibility | Citation | Top engine |
|---|---|---|---|---|
| 1 |
codetwo.com
|
50% | 88% | Google AI Mode |
CodeTwo leads all brands with a composite score of 61.2 and a citation rate of 87.5%, far above the category average citation rate of 19.4%. |
||||
| 2 |
exclaimer.com
|
50% | 50% | Google AI Mode |
Exclaimer matches CodeTwo on visibility at 50% but trails on citation rate at 50% versus 87.5%, giving it a composite score of 50.0 compared to 61.2. |
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| 3 |
wisestamp.com
|
50% | 50% | Google AI Mode |
WiseStamp shares identical scores with Exclaimer at 50% visibility and 50% citation, but recorded the largest visibility gain this period, rising 25 percentage points. |
||||
| 4 |
mail-signatures.com
|
0% | 62% | Google AI Mode |
Mail-Signatures achieves 0% visibility yet holds a 62.5% citation rate, the second highest in the category, creating a sharp disconnect between presence and source authority. |
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| 5 |
mysignature.io
|
12% | 12% | Google AI Mode |
MySignature sits at 12.5% on both visibility and citation, well above the 8.8% category average for visibility but below the 19.4% average for citations. |
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| 6 |
opensense.com
|
12% | 0% | Google AI Mode |
| 7 |
letsignit.com
|
0% | 25% | Google AI Mode |
| 8 |
newoldstamp.com
|
0% | 25% | Google AI Mode |
| 9 |
templafy.com
|
0% | 25% | Google AI Mode |
| 10 |
rocketseed.com
|
0% | 12% | Google AI Mode |
| 11 |
crossware365.com
|
0% | 12% | Google AI Mode |
| 12 |
bybrand.io
|
0% | 12% | Google AI Mode |
| 13 |
gimm.io
|
0% | 12% | Google AI Mode |
| 14 |
signaturesatori.com
|
0% | 0% | Google AI Mode |
| 15 |
signaturehound.com
|
0% | 0% | Google AI Mode |
| 16 |
xink.io
|
0% | 0% | Google AI Mode |
| 17 |
mailtastic.com
|
0% | 0% | Google AI Mode |
| 18 |
sigilium.com
|
0% | 0% | Google AI Mode |
| 19 |
hubspot.com
|
0% | 0% | Google AI Mode |
| 20 |
canva.com
|
0% | 0% | Google AI Mode |
Sources AI engines trust in this category
Across the 8 buyer-intent queries we ran on email signature software, these are the domains Google AI Mode cited most often. If you're not on this list — or if your competitors are — that's a concrete PR / linkbuilding target.
How to read this ranking
Four things worth knowing before you act on the numbers above. These are the same definitions across every industry page — for category-specific observations, see the What we observed section above (where available) and the per-brand insights inline in the ranking.
Visibility = being named
A brand's visibility % is the share of AI answers that mention it by name in the response prose. This is who AI engines actively recommend to the buyer. More on visibility →
Citation rate = being trusted
Citation rate is the share of AI answers that include the brand's domain as a clickable source link. This is what the AI treats as authoritative evidence, different from being named. More on citation rate →
Top engine differs by brand
The "top engine" column shows which AI surface each brand performs best on. Big gaps between a brand's score across engines usually points to specific content or schema gaps. How AI engines pick sources →
Rankings move month to month
AI engines re-crawl and re-rank on shorter cycles than classical search. We re-audit every brand on this list at least every 30 days and refresh this page automatically. How AI search ranking works →
Get your own email signature software brand audited
The brands above were curated from public market-leader lists. Want the same measurement against your own brand — including the queries you appear on, which competitors get named instead, and a prioritised fix list? Run a free preview.
Frequently asked about email signature software AI visibility
Who leads AI visibility in email signature software?
CodeTwo leads with a composite score of 61.2, driven by a citation rate of 87.5%. Exclaimer and WiseStamp both score 50.0, tied at 50% visibility and 50% citation.
What is the average AI visibility for email signature software brands?
The category average visibility is 8.8% and the average citation rate is 19.4%, meaning most of the 20 tracked brands have very limited presence in Google AI Mode responses.
Which sources does Google AI Mode cite most for email signature software research?
The top cited sources include codetwo.com, syncsignature.com, youtube.com, exclaimer.com, g2.com, wisestamp.com, mail-signatures.com, and reddit.com, mixing vendor domains with review and community platforms.
Can a brand be cited frequently by AI without appearing in its answers?
Yes. Mail-Signatures has a 0% visibility rate but a 62.5% citation rate, showing that AI Mode can reference a brand as a source without surfacing it in direct response text.
Which brand gained the most AI visibility in the latest period?
WiseStamp recorded the largest visibility gain, rising 25 percentage points from 25% to 50%, while also increasing its citation rate by 12.5 points.
Which brand fell the most in AI visibility?
Newoldstamp dropped 25 percentage points from 25% to 0% visibility, also falling four places in rank from 4th to 8th.