200 Top SEO Ranking Factors May 2026

TOP SEO Factors for 2026-05 previous

Top SEO Factor data is updated daily for latest "month to date" measurements.

	Name	Correlation	#1 Max	Page 1 Avg	Usage %	Searches %
1	Number of Unique LSI Words Used Diversity	-0.24	951	301	83 %	82 %
2	Search Result Domain is .com, .net, or .org Other	-0.23	1	1	6 %	82 %
3	Search Result Domain is .com Other	-0.22	1	1	6 %	83 %
4	Load Time Milliseconds Performance	-0.21	29874	1327	81 %	93 %
5	Number of Top 200 Shared Factors Used Diversity	-0.21	51	37	97 %	95 %
6	Number of Top 100 Shared Factors Used Diversity	-0.21	38	28	96 %	96 %
7	Number of Top 50 Shared Factors Used Diversity	-0.21	16	12	96 %	94 %
8	Variations in H1, H2, and H3 Tags Relevancy	-0.2	378	11	57 %	90 %
9	Variations in H1-H6 Tags Relevancy	-0.2	409	12	58 %	91 %
10	Number of Distinct Entities Used Diversity	-0.2	59	29	77 %	96 %
11	Number of Unique Variations Used Diversity	-0.2	19	6	74 %	91 %
12	Variations in H1 and H2 Tags Relevancy	-0.19	287	6	55 %	93 %
13	Entities in Title Tag Relevancy	-0.19	7	3	64 %	94 %
14	Variations in Search Result Document File Name Relevancy	-0.19	8	1	42 %	84 %
15	Entities in Sentences Relevancy	-0.19	1308	145	65 %	95 %
16	Variations in P Tags Relevancy	-0.19	4557	102	60 %	93 %
17	Entities in the HTML Tag Relevancy	-0.19	1436	147	70 %	95 %
18	Number of Backlinks Authority	-0.19	382197	16434	50 %	73 %
19	Number of Referring Domains Authority	-0.19	3169	229	50 %	74 %
20	Variations in Div Tags Relevancy	-0.19	68329	893	68 %	91 %
21	Entities in H2 Tags	-0.18	46	7	49 %	96 %
22	Number of Factors Used Diversity	-0.18	271	170	96 %	90 %
23	Word Count Size	-0.18	4408	1425	82 %	90 %
24	Entities in H1 Tags	-0.18	5	2	50 %	89 %
25	Variations in Body Tags Relevancy	-0.18	93621	954	73 %	90 %
26	Unabridged Word Count Size	-0.18	10152	1884	82 %	90 %
27	Variations in HTML Tags Relevancy	-0.18	93621	947	73 %	90 %
28	Variations in Search Result URL Path Relevancy	-0.18	10	2	43 %	85 %
29	Entities in H3 Tags	-0.18	40	7	42 %	92 %
30	LSI Words in Sentences Relevancy	-0.18	2378	733	61 %	95 %
31	Variations in LI Tags Relevancy	-0.18	2914	71	57 %	88 %
32	Clean Text Kilobytes Size	-0.18	56	13	69 %	89 %
33	Number of Heading Tags Size	-0.18	45	21	68 %	90 %
34	Leading Variations in H1, H2, and H3 Tags Relevancy	-0.18	32	2	39 %	86 %
35	Variations in H1 Tags Relevancy	-0.18	20	1	49 %	86 %
36	Number of Do Follow Backlinks Authority	-0.18	377721	14021	46 %	74 %
37	Leading Variations in H1-H6 Tags Relevancy	-0.17	36	2	40 %	85 %
38	Number of P Tags Size	-0.17	114	38	68 %	90 %
39	Variations in H2 Tags Relevancy	-0.17	280	5	42 %	91 %
40	Number of H2 Tags Size	-0.17	23	7	61 %	90 %
41	Number of No Follow Backlinks Authority	-0.17	61104	2775	37 %	69 %
42	Number of HTML Tags Size	-0.17	2805	1041	81 %	88 %
43	Term Frequency Relevancy	-0.17	6	3	73 %	91 %
44	Variations in Sentences Relevancy	-0.17	8372	141	67 %	92 %
45	Variations in A Tags Relevancy	-0.17	9305	122	59 %	87 %
46	Number of H1 Tags Size	-0.17	3	1	65 %	92 %
47	Variations in the Title Tag Relevancy	-0.17	23	2	61 %	86 %
48	Number of Images Size	-0.17	309	31	68 %	92 %
49	Number of Links Authority	-0.17	624	138	74 %	89 %
50	Variations in A Tag HREF Attributes Relevancy	-0.17	2876	75	53 %	87 %
51	Number of HTTPS Links Authority	-0.17	623	137	74 %	89 %
52	Number of DoFollow Links Authority	-0.17	614	135	74 %	90 %
53	Variation Count in Top 30KB Relevancy	-0.17	4928	72	61 %	92 %
54	Variations in Main Tags Relevancy	-0.17	40166	504	36 %	86 %
55	Variations in Distinct A Tag HREF Attributes Relevancy	-0.17	1808	48	53 %	88 %
56	Number of Internal Links Authority	-0.17	619	124	73 %	88 %
57	Has Entities in H1 Tags Relevancy	-0.16	1	1	52 %	87 %
58	Number of Images with ALT Text Size	-0.16	304	22	63 %	89 %
59	Number of H3 Tags Size	-0.16	26	9	54 %	83 %
60	Variations in Search Result URL Relevancy	-0.16	21	2	53 %	78 %
61	Variations in Search Result Display URL Relevancy	-0.16	19	2	75 %	80 %
62	Variations in Search Result Link Text Relevancy	-0.16	19	2	75 %	80 %
63	LSI Words in H2 Tags Relevancy	-0.16	91	21	52 %	96 %
64	Variations in First 100 Words Relevancy	-0.16	177	8	60 %	86 %
65	Variations in the Canonical URL Relevancy	-0.16	50	2	45 %	84 %
66	Search Result Number of Dirs in Path Other	-0.16	3	2	71 %	80 %
67	Variations in Span Tags Relevancy	-0.16	1077	23	45 %	87 %
68	Has Entities in H2 Tags Relevancy	-0.16	1	1	50 %	88 %
69	Average Words Per Sentence Size	-0.16	172	30	73 %	84 %
70	LSI Words in H1 Tags Relevancy	-0.16	10	4	52 %	94 %
71	Number of External Links Authority	-0.16	41	16	71 %	88 %
72	Variations in Absolute URLs Relevancy	-0.16	14393	244	57 %	89 %
73	LSI Words in Title Tag Relevancy	-0.16	15	6	65 %	91 %
74	Variations in H3 Tags Relevancy	-0.16	123	5	33 %	85 %
75	Clean Keyword Density in the HTML Tag Relevancy	-0.16	203	9	65 %	77 %
76	Variation Density in Top 30KB Relevancy	-0.16	310	11	58 %	79 %
77	Number of DoFollow External Links Authority	-0.16	40	14	70 %	87 %
78	Leading Variations in H1 Tags Relevancy	-0.15	2	1	25 %	80 %
79	Number of Images without ALT Text Size	-0.15	32	10	52 %	88 %
80	Number of HTML Comments Size	-0.15	441	47	64 %	88 %
81	Percentage of DoFollow Links Authority	-0.15	99	79	74 %	91 %
82	Number of Sentences Size	-0.15	612	152	78 %	85 %
83	Exact Matches in the HTML Tag Relevancy	-0.15	242	11	30 %	88 %
84	Entities in Meta Description Tag Relevancy	-0.15	19	3	56 %	90 %
85	Variations in OpenGraph Title Relevancy	-0.15	16	2	53 %	85 %
86	Variations in Script Tags Relevancy	-0.15	52712	591	61 %	87 %
87	Variations in Section Tags Relevancy	-0.15	1250	36	35 %	92 %
88	Number Of JSON-LD Types Relevancy	-0.15	63	13	52 %	85 %
89	TF/IDF Relevancy	-0.15	2	1	55 %	89 %
90	Number of US Phone Numbers Trust	-0.15	249	11	35 %	82 %
91	Variations in OpenGraph Description Relevancy	-0.15	45	2	46 %	79 %
92	Variations in Meta Description Relevancy	-0.15	49	2	51 %	84 %
93	Variations in ALT Attributes Relevancy	-0.15	588	11	40 %	88 %
94	Flesch Kincaid Reading Grade Level Other	-0.15	6	1	92 %	86 %
95	Number of Facebook Pages Authority	-0.15	4	2	50 %	81 %
96	LSI Words in H3 Tags Relevancy	-0.15	97	22	44 %	89 %
97	Has Entities in H3 Tags Relevancy	-0.15	1	1	43 %	86 %
98	Leading Variations in Title Tag Relevancy	-0.15	1	1	28 %	82 %
99	Has Privacy Policy Trust	-0.15	1	1	58 %	76 %
100	Percentage of DoFollow Internal Links Authority	-0.15	92	68	72 %	85 %
101	Number of Includes Technology	-0.15	68	26	77 %	77 %
102	Percentage of DoFollow External Links Authority	-0.14	25	12	69 %	81 %
103	Number of Questions In Headings Size	-0.14	6	2	33 %	84 %
104	Exact Matches in H1-H6 Tags Relevancy	-0.14	8	1	19 %	84 %
105	Title Tag Has Entities Relevancy	-0.14	1	1	65 %	85 %
106	Title Length Size	-0.14	100	51	79 %	76 %
107	Variations in Nav Tags Relevancy	-0.14	7034	150	41 %	86 %
108	Leading Variations in H2 Tags Relevancy	-0.14	22	1	20 %	84 %
109	Number of Forms Technology	-0.14	10	2	45 %	83 %
110	Has US Phone Number Trust	-0.14	1	1	36 %	73 %
111	Is Home Page Other	-0.14	1	1	18 %	39 %
112	Title Word Count Size	-0.14	28	8	78 %	76 %
113	LSI Words in Meta Description Tag Relevancy	-0.14	23	10	54 %	91 %
114	Number of JavaScript Includes Technology	-0.14	46	18	76 %	76 %
115	Search Result Domain Length Size	-0.14	23	16	81 %	80 %
116	Search Result Host Length Size	-0.14	23	16	81 %	80 %
117	Has JSON-LD Schema Markup Relevancy	-0.14	1	1	50 %	82 %
118	Inline CSS Kilobytes Size	-0.14	189	59	62 %	83 %
119	Exact Matches in Sentences Relevancy	-0.14	37	3	22 %	87 %
120	Has Meta Charset Technology	-0.14	1	1	71 %	84 %
121	Number of LinkedIn Pages Authority	-0.14	8	1	29 %	80 %
122	Has Form Technology	-0.14	1	1	44 %	79 %
123	Variations making whole H1-H6 Tags Relevancy	-0.14	3	1	14 %	75 %
124	Search Result Uses HTTPS Other	-0.14	1	1	82 %	86 %
125	Number of Social Accounts Authority	-0.14	8	2	37 %	83 %
126	Headings Has Question Other	-0.14	1	1	34 %	78 %
127	Has OpenGraph Image Relevancy	-0.14	1	1	52 %	70 %
128	Variations in Strong Tags Relevancy	-0.14	289	5	23 %	78 %
129	Variations making whole H1, H2, and H3 Tags Relevancy	-0.13	3	1	12 %	76 %
130	Meta Description Length Size	-0.13	203	115	64 %	78 %
131	Uses JSON-LD name Other	-0.13	1	1	49 %	82 %
132	Variations in Footer Tags Relevancy	-0.13	6817	69	32 %	83 %
133	Has Meta Viewport Technology	-0.13	1	1	79 %	80 %
134	Variations making whole A Tags Relevancy	-0.13	115	3	24 %	78 %
135	Number of CSS Includes Technology	-0.13	22	9	70 %	76 %
136	Number of Absolute URLs Authority	-0.13	667	275	81 %	84 %
137	Word Count in Meta Description Size	-0.13	47	19	64 %	81 %
138	Has Canonical URL Authority	-0.13	1	1	68 %	81 %
139	Entities in H4 Tags	-0.13	21	2	18 %	88 %
140	Exact Matches in Top 30KB Relevancy	-0.13	14	2	17 %	86 %
141	Number of Social Pages Authority	-0.13	25	4	58 %	80 %
142	Number of Questions In H2 Tags Size	-0.13	3	1	22 %	79 %
143	Has Terms of Service Trust	-0.13	1	1	42 %	76 %
144	Variations Making Whole Span Tags Relevancy	-0.13	4	1	17 %	85 %
145	Exact Matches in Title Tag Relevancy	-0.13	1	1	17 %	82 %
146	Number of Facebook Accounts Authority	-0.13	2	1	24 %	77 %
147	Number of Instagram Pages Authority	-0.13	23	2	38 %	76 %
148	Page Size Kilobytes Size	-0.13	748	347	81 %	73 %
149	Number of H4 Tags Size	-0.13	23	3	31 %	82 %
150	Leading Variations in H3 Tags Relevancy	-0.13	9	1	14 %	72 %
151	Number of Questions In H3 Tags Size	-0.13	4	1	17 %	79 %
152	Number of Prices Size	-0.13	456	104	65 %	84 %
153	Number of Questions Size	-0.13	63	13	63 %	81 %
154	Uses JSON-LD url Other	-0.12	1	1	44 %	79 %
155	Uses JSON-LD ListItem Other	-0.12	1	1	30 %	73 %
156	Uses JSON-LD description Other	-0.12	1	1	37 %	75 %
157	Has Schema Markup Relevancy	-0.12	1	1	60 %	73 %
158	Variations in Button Tags Relevancy	-0.12	5433	61	13 %	86 %
159	Uses Schema brand Other	-0.12	1	1	6 %	43 %
160	Uses Schema sku Other	-0.12	1	1	6 %	22 %
161	Has Meta Description Relevancy	-0.12	1	1	63 %	76 %
162	Uses JSON-LD GeoCoordinates Other	-0.12	1	1	12 %	41 %
163	Has Meta Robots Other	-0.12	1	1	24 %	71 %
164	Uses JSON-LD BreadcrumbList Other	-0.12	1	1	30 %	73 %
165	Variations in the last 100 words Relevancy	-0.12	176	6	43 %	75 %
166	Has Google Verify Technology	-0.12	1	1	18 %	70 %
167	Number Of Claimed Brands Other	-0.12	60	2	23 %	86 %
168	Search Result URL Length Size	-0.12	93	61	94 %	60 %
169	Uses Schema product Other	-0.12	1	1	9 %	48 %
170	Uses Schema latitude Other	-0.12	1	1	8 %	31 %
171	Uses Schema longitude Other	-0.12	1	1	8 %	31 %
172	Exact Matches in H1 Tags Relevancy	-0.12	1	1	13 %	78 %
173	Variations in ID Attributes Relevancy	-0.12	1696	23	16 %	82 %
174	Number of H5 Tags Size	-0.12	6	2	15 %	76 %
175	Uses JSON-LD latitude Other	-0.12	1	1	8 %	31 %
176	Uses JSON-LD longitude Other	-0.12	1	1	8 %	31 %
177	Meta Description Tag Has Entities Relevancy	-0.12	1	1	57 %	81 %
178	Number of Twitter Accounts Authority	-0.12	5	1	20 %	77 %
179	Has Contact Page Trust	-0.12	1	1	57 %	71 %
180	Uses Schema geocoordinates Other	-0.12	1	1	12 %	41 %
181	Variations Making Whole LI Tags Relevancy	-0.12	5	1	19 %	80 %
182	Uses JSON-LD Organization Other	-0.12	1	1	29 %	76 %
183	Search Result Summary Length Size	-0.12	160	151	97 %	63 %
184	Has Meta Twitter Card Authority	-0.12	1	1	50 %	66 %
185	Variations in H4-H6 Tags Relevancy	-0.12	40	2	15 %	74 %
186	Uses Schema organization Other	-0.12	1	1	31 %	76 %
187	Exact Matches in H2 Tags Relevancy	-0.12	4	1	11 %	85 %
188	Has OpenGraph Type Relevancy	-0.12	1	1	58 %	78 %
189	Uses JSON-LD sku Other	-0.12	1	1	6 %	22 %
190	Number of Nofollow Links Authority	-0.12	15	4	21 %	81 %
191	Variations in Article Tags Relevancy	-0.12	3771	49	20 %	73 %
192	Number of Email Addresses Trust	-0.12	13	4	38 %	78 %
193	Uses Schema name Other	-0.12	1	1	55 %	75 %
194	Inline JavaScript Kilobytes Size	-0.12	534	144	76 %	67 %
195	Uses JSON-LD Product Other	-0.12	1	1	8 %	47 %
196	Uses Schema logo Other	-0.12	1	1	12 %	65 %
197	Uses JSON-LD logo Other	-0.12	1	1	11 %	64 %
198	Is Article Page Other	-0.12	1	1	38 %	68 %
199	Uses Schema aggregaterating Other	-0.12	1	1	8 %	65 %
200	Variations in I Tags Relevancy	-0.12	568	9	17 %	76 %

Measures 150544 SEO Factors

148822 Built-In SEO Factors

139620 On-page SEO Factors

9202 Google Maps SEO Factors for Local SEO

1722 SEO Factors from APIs

147 API SEO Factors for off-page SEO like backlinks and referring domains.

1575 Technology Stack SEO Factors

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TOP SEO Factors for 2026-05 previous