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🇺🇸 Nasdaq 100 Email Security

Weekly audit of email security across 101 companies in the Nasdaq 100.

Nasdaq · 101 companies analysed · Scan week: 2026-03-02

Average score

50/ 100

DMARC reject

65.3%

BIMI configured

23%

MTA-STS enforce

2%

DNSSEC enabled

18.8%

0
A+
0
A
8
B
50
C
38
D
5
F

50

Average

52

Median

0

Min

79

Max

Company

Grade
1CrowdStrikecrowdstrike.com79B
2Thomson Reuters Corporationthomsonreuters.com73B
3Palo Alto Networkspaloaltonetworks.com73B
4PayPalpaypal.com72B
5DoorDashdoordash.com71B
6Broadcombroadcom.com70B
7Cadence Design Systemscadence.com70B
8Cintascintas.com70B
9Kraft Heinzkraftheinzcompany.com69C
10Applied Materialsappliedmaterials.com68C
11ASML Holdingasml.com67C
12Baker Hughesbakerhughes.com67C
13Amgenamgen.com67C
14Microsoftmicrosoft.com66C
15Autodeskautodesk.com64C
16MicroStrategy Incorporatedmicrostrategy.com63C
17Airbnbairbnb.com59C
18Starbucksstarbucks.com59C
19American Electric Poweraep.com58C
20Costcocostco.com58C
21Regeneron Pharmaceuticalsregeneron.com58C
22Netflixnetflix.com58C
23Automatic Data Processingadp.com58C
24Diamondback Energydiamondbackenergy.com58C
25Shopifyshopify.com57C
26MercadoLibre Inc.mercadolibre.com57C
27O’Reilly Automotiveoreillyauto.com56C
28Take-Two Interactivetake2games.com56C
29Workday, Inc.workday.com56C
30Axon Enterpriseaxon.com55C
31Qualcommqualcomm.com55C
32Paccarpaccar.com55C
33Texas Instrumentsti.com55C
34Analog Devicesanalog.com55C
35Zscaler Inc.zscaler.com55C
36Microchip Technologymicrochip.com55C
37Ciscocisco.com55C
38Verisk Analyticsverisk.com55C
39Seagate Technologyseagate.com55C
40Intuitive Surgicalintuitive.com54C
41Honeywellhoneywell.com54C
42Monster Beveragemonsterbevcorp.com53C
43Comcastcomcastcorporation.com53C
44Old Dominionodfl.com53C
45Synopsyssynopsys.com52C
46Apple Inc.apple.com52C
47Cognizantcognizant.com52C
48Dexcomdexcom.com52C
49Gilead Sciencesgilead.com52C
50Linde plclinde.com52C
51Micron Technologymicron.com52C
52PepsiCopepsico.com52C
53Roper Technologiesropertech.com52C
54Nvidianvidia.com51C
55Marvell Technology Inc.marvell.com51C
56Xcel Energyxcelenergy.com51C
57Fortinetfortinet.com51C
58GE HealthCaregehealthcare.com50C
59Warner Bros. Discoverywbd.com49D
60Insmed Incorporatedinsmed.com49D
61Ferrovial SEferrovial.com49D
62Palantir Technologiespalantir.com49D
63Vertex Pharmaceuticalsvrtx.com48D
64Atlassian Corporationatlassian.com47D
65Adobe Inc.adobe.com47D
66Fastenalfastenal.com47D
67CSX Corporationcsx.com46D
68Arm Holdings plcarm.com46D
69Meta Platformsmeta.com46D
70NXP Semiconductorsnxp.com46D
71Electronic Artsea.com46D
72Intuitintuit.com44D
73Walmartwalmart.com44D
74Idexx Laboratoriesidexx.com44D
75Paychexpaychex.com44D
76Booking Holdingsbookingholdings.com43D
77Datadogdatadoghq.com43D
78AppLovinapplovin.com43D
79Advanced Micro Devicesamd.com43D
80Alphabet Inc. (Class A)abc.xyz42D
81Alphabet Inc. (Class C)abc.xyz42D
82Intelintel.com41D
83KLA Corporationkla.com41D
84Mondelez Internationalmondelezinternational.com41D
85T-Mobile USt-mobile.com41D
86Western Digitalwesterndigital.com41D
87CoStar Groupcostargroup.com40D
88Lam Researchlamresearch.com39D
89Tesla, Inc.tesla.com39D
90Marriott Internationalmarriott.com39D
91PDD Holdings Inc.pddholdings.com38D
92Alnylam Pharmaceuticalsalnylam.com38D
93Copartcopart.com36D
94Amazonamazon.com35D
95Exelonexeloncorp.com32D
96Keurig Dr Pepperkeurigdrpepper.com30D
97Ross Storesrossstores.com26F
98Charter Communicationscorporate.charter.com15F
99Coca-Cola Europacific Partners PLCcocacolaep.com8F
100Monolithic Power Systemsmonolithicpowersystems.com0F
101Constellation Energyconstellationenergy.com0F

Understanding index-level analysis

A stock index groups the largest companies in a market. Analyzing their email security provides a representative snapshot of how a country's or region's corporate sector protects against email-based threats.

What this page shows:

  • Average score - The mean email security score across all constituent companies
  • Grade distribution - How many companies fall into each grade bracket (A+ through F)
  • Company table - Individual scores, grades and key indicator status for each company
  • Sector breakdown - How different industries within the index compare

Key standards tracked

Each company is evaluated on:

  1. SPF - Is the sending policy properly configured? Does it use -all (hard fail)?
  2. DKIM - Are signing keys published and strong enough (2048-bit minimum)?
  3. DMARC - Is a policy in place? Is it set to quarantine or reject?
  4. BIMI - Is the brand logo published for inbox display?
  5. MTA-STS - Is inbound email transport encryption enforced?
  6. DNSSEC - Is the DNS zone signed to prevent spoofing?

FAQ - Frequently asked questions

Q: How are companies scored?

A: Each domain is analyzed for email authentication standards and awarded up to 100 points across three pillars.


Q: What does the grade distribution show?

A: The spread of scores from A+ to F, indicating overall index maturity.


Q: Can I compare indices?

A: Yes, via the Statistics page.


PagePurpose
Observatory DashboardOverall overview with key metrics
StatisticsCross-index and cross-sector comparison
Email Domain CheckAudit your own domain
Nasdaq 100 - Email Security Scores