200 Top SEO Ranking Factors September 2026

TOP SEO Factors for 2026-09 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 Referring Domains Authority	-0.28	627	49	32 %	64 %
2	Number of Do Follow Backlinks Authority	-0.27	133206	2200	28 %	63 %
3	Number of Backlinks Authority	-0.27	134088	2283	32 %	65 %
4	Number of No Follow Backlinks Authority	-0.25	5365	150	22 %	65 %
5	Number of Unique LSI Words Used Diversity	-0.25	908	272	74 %	73 %
6	Load Time Milliseconds Performance	-0.25	21244	2091	75 %	86 %
7	Search Result Domain is .com, .net, or .org Other	-0.24	1	1	7 %	78 %
8	Search Result Domain is .com Other	-0.24	1	1	6 %	77 %
9	Number of Images Size	-0.23	81	27	62 %	88 %
10	Number of P Tags Size	-0.22	204	40	61 %	86 %
11	Number of Images with ALT Text Size	-0.22	67	19	58 %	89 %
12	Number of Top 200 Shared Factors Used Diversity	-0.22	51	37	88 %	85 %
13	Unabridged Word Count Size	-0.22	12848	1873	75 %	89 %
14	Word Count Size	-0.22	10144	1529	75 %	88 %
15	Number of Top 50 Shared Factors Used Diversity	-0.21	16	11	88 %	81 %
16	Number of Top 100 Shared Factors Used Diversity	-0.21	38	28	88 %	84 %
17	Number of H1 Tags Size	-0.21	4	1	58 %	83 %
18	Number of Heading Tags Size	-0.21	70	21	63 %	88 %
19	Clean Text Kilobytes Size	-0.21	82	13	61 %	90 %
20	Number of H2 Tags Size	-0.21	21	7	57 %	84 %
21	Has Meta Charset Technology	-0.21	1	1	63 %	84 %
22	Has JSON-LD Schema Markup Relevancy	-0.21	1	1	44 %	76 %
23	Number of HTML Tags Size	-0.21	2216	919	75 %	85 %
24	Number of Includes Technology	-0.2	54	23	68 %	78 %
25	Variations in H1, H2, and H3 Tags Relevancy	-0.2	211	9	53 %	85 %
26	Number of DoFollow Links Authority	-0.2	333	107	69 %	85 %
27	Number of Facebook Pages Authority	-0.2	10	2	45 %	86 %
28	Variations in H1-H6 Tags Relevancy	-0.2	267	10	53 %	86 %
29	Variations in P Tags Relevancy	-0.2	3443	60	54 %	86 %
30	Number of Links Authority	-0.2	336	109	69 %	86 %
31	Number of HTTPS Links Authority	-0.2	335	108	69 %	86 %
32	Average Words Per Sentence Size	-0.2	242	25	65 %	78 %
33	Number of Internal Links Authority	-0.2	312	96	68 %	82 %
34	Search Result Number of Dirs in Path Other	-0.2	4	2	67 %	77 %
35	Variations in H1 and H2 Tags Relevancy	-0.2	76	5	51 %	82 %
36	Number of Factors Used Diversity	-0.2	396	179	89 %	79 %
37	Variations in Div Tags Relevancy	-0.19	31244	320	63 %	85 %
38	Variations in LI Tags Relevancy	-0.19	1981	37	53 %	84 %
39	Number of Unique Variations Used Diversity	-0.19	48	14	71 %	76 %
40	Variations in A Tags Relevancy	-0.19	4844	54	54 %	81 %
41	Variations in Search Result Document File Name Relevancy	-0.19	7	1	40 %	85 %
42	Number of Images without ALT Text Size	-0.19	29	8	44 %	86 %
43	Number of HTML Comments Size	-0.19	492	58	58 %	84 %
44	Entities in Sentences Relevancy	-0.19	1891	150	56 %	92 %
45	Number of External Links Authority	-0.19	38	13	64 %	89 %
46	Number of Distinct Entities Used Diversity	-0.19	60	24	64 %	92 %
47	Number of CSS Includes Technology	-0.19	21	8	62 %	70 %
48	Number of H3 Tags Size	-0.19	37	9	49 %	87 %
49	Variations in H2 Tags Relevancy	-0.19	71	4	43 %	80 %
50	Entities in the HTML Tag Relevancy	-0.18	1892	155	60 %	92 %
51	Number of Instagram Pages Authority	-0.18	13	2	35 %	83 %
52	Search Result Host Length Size	-0.18	22	16	74 %	76 %
53	Variations in H1 Tags Relevancy	-0.18	11	1	44 %	78 %
54	Entities in H2 Tags	-0.18	46	7	43 %	92 %
55	Number of DoFollow External Links Authority	-0.18	36	12	63 %	89 %
56	Search Result Domain Length Size	-0.18	22	16	74 %	76 %
57	Variations in Body Tags Relevancy	-0.18	97091	742	70 %	81 %
58	Has Form Technology	-0.18	1	1	37 %	70 %
59	Number of LinkedIn Pages Authority	-0.18	4	1	25 %	79 %
60	Variations in ALT Attributes Relevancy	-0.18	151	8	39 %	82 %
61	Leading Variations in H1, H2, and H3 Tags Relevancy	-0.18	11	2	37 %	81 %
62	Variation Count in Top 30KB Relevancy	-0.18	6580	72	57 %	78 %
63	Flesch Kincaid Reading Grade Level Other	-0.18	6	1	85 %	86 %
64	Variations in HTML Tags Relevancy	-0.18	97091	729	68 %	83 %
65	LSI Words in Sentences Relevancy	-0.18	3764	619	52 %	94 %
66	Leading Variations in H1-H6 Tags Relevancy	-0.18	12	2	40 %	83 %
67	Variations in Span Tags Relevancy	-0.18	729	16	43 %	85 %
68	Number of Social Pages Authority	-0.18	15	5	51 %	82 %
69	Search Result Uses HTTPS Other	-0.17	1	1	72 %	70 %
70	Number of Forms Technology	-0.17	7	2	38 %	76 %
71	Uses JSON-LD name Other	-0.17	1	1	46 %	73 %
72	Variations in Sentences Relevancy	-0.17	3407	77	63 %	82 %
73	Variations in A Tag HREF Attributes Relevancy	-0.17	2213	58	49 %	83 %
74	Percentage of DoFollow External Links Authority	-0.17	38	13	62 %	77 %
75	Variations in Search Result URL Path Relevancy	-0.17	7	2	42 %	83 %
76	Number of Facebook Accounts Authority	-0.17	3	1	19 %	79 %
77	Number of Questions In Headings Size	-0.17	9	3	33 %	82 %
78	Entities in H1 Tags	-0.17	5	2	43 %	89 %
79	Number Of JSON-LD Types Relevancy	-0.17	77	17	48 %	83 %
80	Number of Social Accounts Authority	-0.17	5	2	31 %	82 %
81	Variations in Distinct A Tag HREF Attributes Relevancy	-0.17	1343	36	49 %	83 %
82	Term Frequency Relevancy	-0.17	6	3	68 %	76 %
83	Entities in H3 Tags	-0.17	63	7	36 %	93 %
84	Variations in H3 Tags Relevancy	-0.17	135	4	36 %	85 %
85	Page Size Kilobytes Size	-0.17	788	290	74 %	58 %
86	Percentage of DoFollow Links Authority	-0.17	99	79	69 %	74 %
87	Number of Sentences Size	-0.17	541	141	73 %	83 %
88	Headings Has Question Other	-0.16	1	1	33 %	76 %
89	Variations in Main Tags Relevancy	-0.16	15167	164	31 %	83 %
90	Percentage of DoFollow Internal Links Authority	-0.16	91	65	67 %	68 %
91	Entities in Title Tag Relevancy	-0.16	10	3	55 %	91 %
92	Has Meta Robots Other	-0.16	1	1	23 %	74 %
93	Has Entities in H2 Tags Relevancy	-0.16	1	1	43 %	87 %
94	Is Home Page Other	-0.16	1	1	14 %	55 %
95	Number of Questions In H3 Tags Size	-0.16	5	2	18 %	77 %
96	Has Meta Viewport Technology	-0.16	1	1	70 %	71 %
97	Uses JSON-LD url Other	-0.16	1	1	41 %	72 %
98	Variations in Search Result URL Relevancy	-0.16	13	2	51 %	77 %
99	Variations in Nav Tags Relevancy	-0.16	9938	77	40 %	79 %
100	Variations in Absolute URLs Relevancy	-0.16	6009	105	53 %	82 %
101	Inline CSS Kilobytes Size	-0.16	154	55	58 %	82 %
102	Variations in First 100 Words Relevancy	-0.16	187	9	57 %	77 %
103	Inline JavaScript Kilobytes Size	-0.16	557	117	70 %	53 %
104	Variations in Meta Description Relevancy	-0.16	44	2	51 %	68 %
105	LSI Words in H2 Tags Relevancy	-0.16	69	17	43 %	88 %
106	Variation Density in Top 30KB Relevancy	-0.16	298	5	57 %	68 %
107	Number of Absolute URLs Authority	-0.16	546	236	73 %	69 %
108	Title Length Size	-0.16	129	50	72 %	59 %
109	Variations in Search Result Link Text Relevancy	-0.16	10	2	76 %	71 %
110	Has Entities in H1 Tags Relevancy	-0.16	1	1	44 %	87 %
111	Variations in the Title Tag Relevancy	-0.15	10	2	55 %	69 %
112	Is Article Page Other	-0.15	1	1	35 %	67 %
113	Search Result Summary Length Size	-0.15	216	150	88 %	68 %
114	Leading Variations in H2 Tags Relevancy	-0.15	4	1	22 %	79 %
115	Number of JavaScript Includes Technology	-0.15	40	16	69 %	79 %
116	Variations in OpenGraph Title Relevancy	-0.15	7	2	48 %	60 %
117	Variations in Section Tags Relevancy	-0.15	1231	34	34 %	85 %
118	Has Contact Page Trust	-0.15	1	1	48 %	60 %
119	Has US Phone Number Trust	-0.15	1	1	30 %	72 %
120	Variations in Search Result Display URL Relevancy	-0.15	10	2	76 %	71 %
121	Leading Variations in H1 Tags Relevancy	-0.15	1	1	22 %	76 %
122	Title Word Count Size	-0.15	17	8	73 %	62 %
123	Variations in Footer Tags Relevancy	-0.15	4986	40	36 %	77 %
124	Exact Matches in the HTML Tag Relevancy	-0.15	324	10	28 %	82 %
125	Has Apple Touch Icon Technology	-0.15	1	1	42 %	76 %
126	Has Privacy Policy Trust	-0.15	1	1	44 %	64 %
127	Variations in the Canonical URL Relevancy	-0.15	39	2	43 %	74 %
128	Uses JSON-LD description Other	-0.15	1	1	37 %	68 %
129	Number of US Phone Numbers Trust	-0.15	108	8	32 %	82 %
130	Number Of Claimed Brands Other	-0.15	38	3	22 %	76 %
131	Number of Twitter Accounts Authority	-0.15	2	1	14 %	81 %
132	Number of Email Addresses Trust	-0.15	19	4	38 %	75 %
133	Variations in OpenGraph Description Relevancy	-0.15	24	2	46 %	65 %
134	Variations in Strong Tags Relevancy	-0.15	43	3	25 %	81 %
135	Number of Questions In H2 Tags Size	-0.15	4	1	21 %	80 %
136	Clean Keyword Density in the HTML Tag Relevancy	-0.15	204	6	59 %	66 %
137	Number of Prices Size	-0.15	484	111	61 %	77 %
138	LSI Words in H3 Tags Relevancy	-0.14	72	19	37 %	91 %
139	Leading Variations in Title Tag Relevancy	-0.14	1	1	27 %	75 %
140	LSI Words in H1 Tags Relevancy	-0.14	11	4	43 %	87 %
141	Number of H4 Tags Size	-0.14	12	3	27 %	81 %
142	Exact Matches in Top 30KB Relevancy	-0.14	8	2	17 %	76 %
143	Has Entities in H3 Tags Relevancy	-0.14	1	1	36 %	85 %
144	Variations in Script Tags Relevancy	-0.14	29554	229	59 %	73 %
145	Uses Schema organization Other	-0.14	1	1	29 %	65 %
146	Number of Questions Size	-0.14	55	14	59 %	71 %
147	Number of Nofollow Links Authority	-0.14	20	3	18 %	81 %
148	Has Schema Markup Relevancy	-0.14	1	1	55 %	56 %
149	Exact Matches in H1-H6 Tags Relevancy	-0.14	8	1	17 %	81 %
150	Has Terms of Service Trust	-0.14	1	1	31 %	56 %
151	Uses Schema name Other	-0.14	1	1	53 %	53 %
152	Uses Schema datemodified Other	-0.14	1	1	27 %	68 %
153	Number of NoFollow External Links Authority	-0.14	7	2	13 %	81 %
154	Uses JSON-LD datePublished Other	-0.14	1	1	27 %	70 %
155	Entities in Meta Description Tag Relevancy	-0.14	17	3	48 %	86 %
156	Word Count in Meta Description Size	-0.14	54	19	61 %	61 %
157	Uses JSON-LD Organization Other	-0.14	1	1	28 %	67 %
158	Has OpenGraph Type Relevancy	-0.14	1	1	54 %	55 %
159	Variations Making Whole Span Tags Relevancy	-0.14	6	1	19 %	76 %
160	Uses JSON-LD ImageObject Other	-0.14	1	1	26 %	68 %
161	Is OpenGraph Type Article Technology	-0.14	1	1	25 %	60 %
162	Has OpenGraph Image Relevancy	-0.14	1	1	47 %	53 %
163	Uses JSON-LD dateModified Other	-0.14	1	1	26 %	68 %
164	Meta Description Length Size	-0.14	394	115	61 %	62 %
165	TF/IDF Relevancy	-0.14	1	1	52 %	72 %
166	Has FavIcon Technology	-0.14	1	1	66 %	59 %
167	Number of Meta Generator Tags Technology	-0.14	2	1	28 %	69 %
168	Uses Schema url Other	-0.14	1	1	50 %	52 %
169	Has Canonical URL Authority	-0.14	1	1	63 %	59 %
170	Percentage of NoFollow Links Authority	-0.14	7	2	16 %	78 %
171	Uses JSON-LD ListItem Other	-0.13	1	1	31 %	66 %
172	Uses JSON-LD BreadcrumbList Other	-0.13	1	1	31 %	65 %
173	Has Meta Description Relevancy	-0.13	1	1	59 %	56 %
174	Uses JSON-LD WebPage Other	-0.13	1	1	27 %	66 %
175	Variations in Article Tags Relevancy	-0.13	356	20	21 %	77 %
176	Has Email Trust	-0.13	1	1	37 %	68 %
177	Uses Schema webpage Other	-0.13	1	1	28 %	68 %
178	Variations in I Tags Relevancy	-0.13	138	5	17 %	83 %
179	Variations Making Whole LI Tags Relevancy	-0.13	7	1	23 %	77 %
180	Is Store Page Other	-0.13	1	1	34 %	69 %
181	Exact Matches in Title Tag Relevancy	-0.13	1	1	14 %	78 %
182	Percentage of NoFollow External Links Authority	-0.13	5	1	11 %	80 %
183	Has RSS Link Authority	-0.13	1	1	22 %	61 %
184	Entities in H4 Tags	-0.13	10	2	15 %	90 %
185	Search Result Has Unmodified Page Title Other	-0.13	1	1	37 %	58 %
186	LSI Words in Title Tag Relevancy	-0.13	12	5	52 %	84 %
187	Search Result URL Length Size	-0.13	206	66	88 %	42 %
188	Variations making whole A Tags Relevancy	-0.13	22	2	26 %	78 %
189	Uses Schema website Other	-0.13	1	1	29 %	65 %
190	Has Google Verify Technology	-0.13	1	1	15 %	71 %
191	Uses Schema image Other	-0.13	1	1	18 %	70 %
192	Uses Schema addresslocality Other	-0.13	1	1	19 %	66 %
193	Uses Microdata AggregateRating Other	-0.13	1	1	2 %	15 %
194	Uses JSON-LD SearchAction Other	-0.13	1	1	19 %	64 %
195	Uses Schema searchaction Other	-0.13	1	1	19 %	63 %
196	Uses Schema telephone Other	-0.13	1	1	21 %	62 %
197	Uses Schema postaladdress Other	-0.13	1	1	19 %	66 %
198	Variations in H4-H6 Tags Relevancy	-0.13	57	2	16 %	81 %
199	Uses JSON-LD image Other	-0.13	1	1	15 %	74 %
200	Uses Schema headline Other	-0.13	1	1	15 %	60 %

Measures 154537 SEO Factors

152815 Built-In SEO Factors

143588 On-page SEO Factors

9227 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 2026-09 previous