diff --git a/README.en-us.md b/README.en-us.md
index bd85356..9efdfcf 100644
--- a/README.en-us.md
+++ b/README.en-us.md
@@ -59,13 +59,14 @@ We compare FIZZ with the major gateway products on the market, using the same en
- Linux version 3.10.0-957.21.3.el7.x86_64
- 8G RAM
-| product name | QPS of 600 connections | 90% Latency(ms) of 600 connections | QPS of 1000 connections | 90% Latency(ms) of 1000 connections |
-| :------------------: | ------- | -------------------- |------- | -------------------- |
-| direct access | 23540| 32.19 | 27325| 52.09 |
-| kong v2.4.1 | 15662 | 50.87 | 17152 | 84.3 |
-| fizz-gateway-community v2.0.0 | 12206 | 65.76 | 12766 | 100.34 |
-| spring-cloud-gateway v2.2.9 | 11323 | 68.57 | 10472 | 127.59 |
-| shenyu v2.3.0 | 9284 | 92.98 | 9939 | 148.61 |
+| category | product name | QPS of
600 connections | 90% Latency(ms) of
600 connections | QPS of
1000 connections | 90% Latency(ms) of
1000 connections |
+| :------------------ | :------------------ | :-------: | :-------: | :-------: | :-------: |
+| Backend Service | direct access | 23540| 32.19 | 27325| 52.09 |
+| Traffic Gateway | kong
v2.4.1 | 15662 | 50.87 | 17152 | 84.3 |
+| Application Gateway | fizz-gateway-community
v2.0.0 | 12206 | 65.76 | 12766 | 100.34 |
+| Application Gateway | spring-cloud-gateway
v2.2.9 | 11323 | 68.57 | 10472 | 127.59 |
+| Application Gateway | shenyu
v2.3.0 | 9284 | 92.98 | 9939 | 148.61 |
+
## Version comparison